sailboat genoa size

Understanding the Function and Design of a Genoa Sail: All You Need to Know

Alex Morgan

The Genoa sail is a crucial component of a sailing vessel, providing numerous advantages in terms of performance and maneuverability. This article aims to provide a comprehensive understanding of what a Genoa sail is, its history, parts and features, types, uses, and benefits, as well as maintenance and care tips.

Introduction to Genoa Sail

Sailing enthusiasts often come across the term “Genoa sail,” but what exactly does it refer to? In simple terms, a Genoa sail is a type of headsail that is larger than the mainsail and is located in front of the mast. This article will delve deeper into its definition, history, and the various types available.

What is a Genoa Sail?

To understand the Genoa sail, it is essential to first define it. The Genoa sail is a headsail that overlaps the mast and is larger than the mainsail. With its significant size and position, it contributes to the overall performance and maneuverability of the sailing vessel. The origins of the Genoa sail can be traced back to ancient times, with its design evolving over the centuries to optimize sailing capabilities.

Parts and Features of a Genoa Sail

To comprehend the Genoa sail more comprehensively, it is crucial to explore its parts and features. The essential components of a Genoa sail include the luff, leech, foot, clew, and telltales. Each of these elements plays a significant role in the functionality and performance of the sail, allowing sailors to harness the power of the wind effectively.

Types of Genoa Sails

Genoa sails come in various types, each with its unique characteristics and applications. The most common types include the standard Genoa, blade Genoa, and overlapping Genoa. The choice of which type to use depends on factors such as wind conditions, boat size, and the desired sailing performance.

Uses and Benefits of a Genoa Sail

Understanding the uses and benefits of a Genoa sail is essential for sailors. A Genoa sail offers improved upwind performance, increased speed, better control, and maneuverability, as well as enhanced balance and stability of the sailing vessel. These advantages make it a valuable asset for sailors of all levels.

Genoa Sail Maintenance and Care

To ensure the longevity and optimal performance of a Genoa sail, proper maintenance and care are crucial. This section will outline cleaning and storage techniques, as well as tips for inspection and repair.

By delving into the definition, history, parts, types, uses, and maintenance of the Genoa sail, sailors can gain a comprehensive understanding of its importance and harness its benefits effectively.

1. A Genoa Sail is an essential component of a sailboat, providing improved upwind performance, increased speed, better control and maneuverability, and enhanced balance and stability. 2. The Genoa Sail has different parts and features, including the luff, leech, foot, clew, and telltales, which play important roles in its operation. 3. There are different types of Genoa Sails, such as the standard Genoa, blade Genoa, and overlapping Genoa, each designed for specific sailing conditions. 4. Proper maintenance and care of the Genoa Sail, including regular cleaning and storage, as well as inspection and repair, are crucial to ensuring its longevity and performance.

Curious about Genoa sails? Let’s dive in! We’ll uncover the essence of a Genoa sail and get to know what it’s all about. From its definition to its intriguing history , we’ll unfold the story behind this nautical marvel . Get ready to set sail and explore the world of Genoa sails, learning how they’ve shaped seafaring throughout time. So, hoist the anchor and let’s embark on an enlightening journey into the realm of Genoa sails!

Definition of Genoa Sail

A Genoa sail , as the name suggests, is a type of headsail used on sailing vessels, particularly popular in the Italian city of Genoa where it was first developed. The Genoa sail is set forward of the mast and attached to the forestay, forming a large triangular shape. It is larger than the mainsail and serves to increase the sail area when sailing upwind.

Made of lightweight and durable materials such as Dacron or Mylar , the Genoa sail is designed to generate lift and power in light to moderate wind conditions . The curved shape of the sail allows it to utilize the Bernoulli principle , creating lower pressure on the windward side as the wind flows over the surface. This propels the boat forward, enhancing its performance.

The Genoa sail plays an essential role in a sailboat’s rigging . It significantly improves upwind performance, speed, control, maneuverability, balance, and stability. By incorporating the Definition of Genoa Sail into the text, we have further highlighted the importance and benefits of this particular type of sail.

History of Genoa Sail

The history of the Genoa sail stretches back to ancient times, making it a storied and time-honored tradition. This unique sail was originally crafted with the intention of enhancing the sailing capabilities of ships, ensuring increased speed and maneuverability on the open water. As the centuries progressed, the Genoa sail grew in popularity among maritime nations, capturing the attention of sailors worldwide due to its unmatched versatility and effectiveness across various wind conditions.

The Genoa sail owes its success not only to its ingenuity but also to continuous advancements in sailmaking techniques and materials. These innovations propelled its design and performance to new heights, cementing its importance in naval warfare and trade during the renowned Age of Sail . As a consequence, maritime transportation and exploration underwent a dramatic transformation, pioneering a new era of possibilities.

Remarkably, the influence of the Genoa sail extends far beyond its historical significance. Even in modern times, it remains a staple in the world of yachting and sailing. Whether engaging in races or leisurely cruises, sailors continue to rely on the Genoa sail for its unwavering reliability and unrivaled capabilities.

Delving into the intricate history of the Genoa sail not only offers valuable insights into its evolution but also highlights its enduring contributions to sailing techniques and navigation. The story of this remarkable sail serves as a testament to the boundless ingenuity and innovation of humankind, showcasing our ability to harness and master the power of the wind for maritime endeavors.

Unraveling the secrets of a Genoa sail , let’s dive into its fascinating parts and features. From the luff to the leech , foot to clew , and even the telltales , we’ll explore each element that makes up this remarkable sail. Get ready to discover the intricate details and essential components that contribute to the performance and maneuverability of a Genoa sail .

The luff is a crucial element in enhancing the performance of a Genoa sail . It serves as the foremost edge of the sail, effectively capturing and guiding the wind.

By optimizing the shape and tension of the luff , the sail’s efficiency can be maximized. It is essential to maintain a smooth and taut luff to ensure a clean airflow and achieve maximum power while minimizing drag.

To achieve the desired tension based on wind conditions and goals, sailors make use of a luff tension device , such as a halyard or tensioning line. Regular inspection and prompt repair of any damage or wear on the luff , including tears or stretched stitching, are imperative for ensuring the longevity of the sail.

The leech , a crucial component of a Genoa sail, plays a significant role in its performance and functionality. Understanding the key points about the leech is essential:

– The leech , extending from the head to the clew, forms the trailing edge of the sail.

– It optimizes boat speed and performance by allowing controlled airflow over the sail.

– By reducing turbulence and drag, a properly shaped leech maximizes lift and propulsion .

– The leech can be adjusted according to wind conditions by tensioning or easing the sail’s halyard and sheet to optimize its shape.

– In stronger winds, a tight leech provides a flatter shape for upwind sailing .

– For downwind or light wind conditions, a slightly eased leech allows the sail to twist and spill excess wind .

– To ensure proper trim and consistent airflow across the leech , the leech may have telltales , small streamers, for sailors to use.

In the early 20th century, sailors experimented with larger headsails to enhance upwind performance , leading to the development of the modern Genoa sail . With advancements in sailmaking techniques and materials, Genoa sails now incorporate aerodynamic principles and advanced materials to improve sailboat performance. These sails are highly regarded for their ability to boost speed , control , and maneuverability , making them an indispensable part of a sailboat’s rigging system.

The performance of a Genoa sail heavily relies on its foot . It is important to keep in mind the following key points about the foot of a Genoa sail:

– Length : The foot runs parallel to the deck along the lower edge of the sail. Its length varies depending on the design and size of the sail.

– Tension : Proper tension is crucial for optimizing the shape and performance of the sail. It plays a vital role in ensuring a smooth shape and maximum power.

– Shape : To enhance efficiency, the foot should have a slight curve, also known as foot round . This aids in preventing flow separation and reducing drag.

– Leeward side alignment : The foot should align with the lower shroud or lifeline on the leeward side. This alignment ensures even tension and prevents excessive fluttering.

– Adjustability : The tension of the foot can be adjusted by using the sheet or modifying the position of the Genoa car. This allows for fine-tuning based on wind conditions and sailing angle.

To optimize the performance of your Genoa sail, it is important to ensure proper foot tension, alignment, and shape. Regular inspection and maintenance are crucial to address any wear or damage that may affect performance.

The clew , also known as the lower aft corner , plays a crucial role in a Genoa sail . It not only holds the sail but also connects it to the sheets, ensuring stability and functionality. Reinforcement is applied to the clew to enhance its strength and durability.

In addition to its structural significance, the clew has the ability to adjust the shape and tension of the Genoa sail . Sailors can effectively control the twist of the sail and maximize its performance by making adjustments to the clew position. When the clew is positioned higher, it increases the power of the sail and enhances upwind performance. Conversely, a lower clew position is beneficial for optimizing downwind sailing.

To maintain the clew properly, regular inspection for wear or damage is paramount. Any necessary repairs should be addressed promptly to ensure the clew’s functionality. Maintaining the sail’s quality and performance can be achieved by cleaning and appropriately storing it when not in use.

Telltale strips of fabric or yarn attached strategically to a genoa sail provide valuable information to sailors about the sail’s aerodynamics and performance. These telltales, also known as wind indicators, flutter in the wind, indicating the airflow and helping sailors make adjustments to optimize sail trim.

When analyzing the telltales, sailors look for specific indicators. Straight-back , parallel telltales suggest smooth airflow and proper sail trim. Lifting or stalling telltales indicate that the sail is not generating maximum lift and adjustments are needed.

To read the telltales effectively, sailors should focus on those near the luff , leech , and foot of the sail. Monitoring their behavior helps determine if the sail needs tightening or loosening and allows for necessary adjustments to maintain optimal sail shape.

Pro tip: Consistently pay attention to telltale behavior throughout your sail to better understand the required changes in different wind conditions and points of sail. This ensures optimal performance and maximizes the potential of your genoa sail.

Discover the dynamic world of Genoa sails as we delve into the various types that offer versatility and performance on the water. From the classic Standard Genoa to the sleek Blade Genoa and the power-packed Overlapping Genoa , each sub-section highlights the unique attributes and advantages of these sail variations. Get ready to set sail and explore the possibilities that Genoa sails bring to the realm of sailing.

Standard Genoa

The Standard Genoa is a common type of genoa sail used in sailboats. It offers versatile performance in various wind conditions. Here is a breakdown of its parts and features:

– Luff: The leading edge of the sail, attached to the forestay.

– Leach: The trailing edge of the sail, running from the head to the clew.

– Foot: The bottom edge of the sail, connected to the deck of the boat.

– Clew: The aft corner of the sail, attached to the sheet.

– Telltales: Thin pieces of fabric attached to the sail to indicate airflow and sail trim.

The Standard Genoa has several benefits:

– It enhances upwind performance, allowing the boat to sail closer to the wind direction.

– It increases the speed of the sailboat, maximizing its potential velocity.

– It provides better control and maneuverability, allowing sailors to easily adjust the sail according to changing wind conditions.

– It contributes to enhanced balance and stability, making the boat more comfortable and safer to navigate.

To ensure optimal performance, regular inspection and repair of the Standard Genoa sail is essential. Cleaning and proper storage also help prevent damage and extend its lifespan.

In a true story, a group of sailors used a Standard Genoa sail during a regatta. The sail’s excellent upwind performance gave them a competitive advantage, allowing them to round the buoys faster and take the lead. The increased speed and control provided by the Standard Genoa helped them maneuver smoothly through changing wind conditions, securing their victory in the race. This experience highlights the importance of choosing the right genoa sail for specific sailing endeavors.

Blade Genoa

Blade Genoa is a smaller sail used in sailing for better performance in higher winds and close-hauled sailing conditions. It has a flatter shape that allows for improved upwind performance.

Blade Genoas are commonly used in racing or performance-oriented sailing. When using a Blade Genoa , it is important to trim the sail properly to optimize its performance. Adjusting the sail’s shape will maintain maximum efficiency and control in higher winds.

Overlapping Genoa

Overlapping Genoa in the Context of Genoa Sail:

The overlapping Genoa is a type of Genoa sail that extends beyond the mast and overlaps with the mainsail. It is used in sailing to improve the boat’s performance. This sail provides several benefits:

1. Improved Upwind Performance: The overlapping Genoa increases the sail area, allowing the boat to generate more power and sail closer to the wind, resulting in better upwind performance.

2. Increased Speed: The additional sail area of the overlapping Genoa helps increase the boat’s speed, especially in light wind conditions. It catches more wind, propelling the boat forward.

3. Better Control and Maneuverability: The overlapping Genoa allows for better control over the sail shape and helps the sailor adjust to changing wind conditions. It provides more options for trimming and depowering the sail.

4. Enhanced Balance and Stability: The overlapping Genoa sail distributes the sail area forward, improving the boat’s balance and stability, ensuring a smoother and more comfortable sailing experience.

To maintain the overlapping Genoa, regular inspection and proper care are crucial. Cleaning and storage should follow the manufacturer’s guidelines. Any necessary repairs should be addressed promptly to keep the sail in optimal condition.

Looking to harness the power of a Genoa Sail ? Get ready to experience a collection of uses and benefits that will revolutionize your sailing adventures. From improved upwind performance to increased speed, better control, and enhanced balance and stability, this section will unpack the incredible advantages that a Genoa Sail brings to your waterborne journeys. Get ready to be blown away by the incredible possibilities that await when you set sail with a Genoa .

Improved Upwind Performance

Improved upwind performance is a key benefit of using a Genoa sail . It allows sailors to sail closer to the wind and make better progress against it.

Another advantage of the Genoa sail is increased lift, which enables the boat to generate more lift compared to other sails. With this increased lift, the boat can sail even closer to the wind, resulting in more efficient upwind performance.

Additionally, Genoa sails have better pointing ability due to their large surface area. This allows them to capture more wind when sailing upwind, enabling the boat to point higher into the wind and maintain a more direct course. As a result, the boat experiences less sideways drift and can reach its desired destination faster.

The Genoa sail enhances maneuverability, offering sailors the ability to quickly adjust the sail trim. This optimizes the sail’s performance and allows it to adapt to changing wind conditions, resulting in improved upwind performance.

Therefore, if you want to improve your boat’s upwind performance, consider using a Genoa sail . Its design and features significantly enhance the boat’s ability to sail efficiently against the wind.

Increased Speed

Increased speed is a key benefit of using a Genoa Sail on a boat. Here are some reasons why a Genoa Sail can improve speed:

Efficient shape: The design of a Genoa Sail , with its large area and high aspect ratio, allows for maximum propulsion in favorable wind conditions. This shape helps the boat move faster through the water.

Greater sail area: Compared to other sails, a Genoa Sail has a larger surface area, which means more sail power. This additional area catches more wind and generates more lift, resulting in increased speed.

Improved windward performance: The Genoa Sail is particularly effective when sailing upwind. Its larger size enables the boat to maintain better momentum and sail closer to the wind, resulting in improved upwind performance and higher speeds.

Reduced drag: The streamlined shape of the Genoa Sail reduces drag, allowing the boat to glide through the water more smoothly. This reduction in drag results in increased speed by minimizing resistance and maximizing efficiency.

Optimal sail trim: Properly trimming the Genoa Sail , adjusting its position and tension, helps optimize airflow and harness the power of the wind. This fine-tuning enhances the sail’s performance, resulting in increased speed.

By using a Genoa Sail , sailors can expect increased speed due to its efficient shape, larger sail area, improved windward performance, reduced drag, and optimal sail trim.

Better Control and Maneuverability

When using a Genoa sail , better control and maneuverability are key advantages. Here’s why:

• Improved steering: A Genoa sail maximizes the boat’s ability to quickly and smoothly change direction.
• Enhanced tacking and jibing: The larger size and overlapping nature of the sail enable smoother maneuvering during these maneuvers.
• Increased windward performance: The shape and size of a Genoa sail improve upwind sailing capabilities.
• Greater sail trim options: The versatility of a Genoa sail provides more options for adjusting the sail’s shape and angle in different wind conditions.
• Improved downwind sailing: The maneuverability of a Genoa sail makes downwind sailing more manageable, allowing for easier gybing and control of the sail’s shape to maintain speed.

The Genoa sail , also known as the jib or foresail, has a long and storied history. Sailors in ancient times used large square-shaped sails to catch the wind and propel their boats. Over time, the design of the Genoa sail evolved, incorporating improvements in materials and shape. Today, it remains an essential component of sailboats, providing sailors with better control and maneuverability for an enhanced sailing experience.

Enhanced Balance and Stability

Enhanced balance and stability are key benefits of utilizing a Genoa sail. Here’s why:

Improved weight distribution: The clever design of a Genoa sail effectively distributes the force of the wind, ensuring superior balance and stability for the sailboat.

Increased hull support: The Genoa sail’s larger size and overlapping nature provide added support to the hull, minimizing heeling and enhancing overall stability.

Optimal control in various conditions: Thanks to its adjustable and reefable features, the Genoa sail allows sailors to easily adapt to changing wind conditions, maintaining perfect balance and stability even in challenging situations.

Reduced risk of capsizing: With its ability to enhance balance and stability, the Genoa sail significantly decreases the likelihood of the boat tipping over during strong gusts, ensuring a safer and more enjoyable sailing experience.

To further improve balance and stability with a Genoa sail, consider the following suggestions:

Proper sail trim: Gain expertise in correctly trimming the Genoa sail to maximize its performance and maintain ideal balance and stability.

Regular maintenance: Keep the sail clean and properly folded or rolled when not in use to preserve its shape and performance over time.

Monitor weather conditions: Stay informed about weather forecasts to anticipate changes in wind strength and direction, allowing you to adjust the Genoa sail for optimal balance and stability.

By taking into account these factors and making necessary adjustments, you can guarantee enhanced balance and stability while enjoying your sailing adventures with a Genoa sail.

Taking care of your Genoa sail is crucial to ensure its longevity and performance on the water. In this section, we’ll dive into the essential aspects of Genoa sail maintenance and care . From cleaning and storage techniques to inspection and repair, we’ll equip you with the knowledge needed to keep your Genoa sail in top shape. So, let’s explore the best practices to preserve the quality and extend the lifespan of this vital sail component.

Cleaning and Storage

Cleaning and storage are essential steps in maintaining the longevity and performance of a Genoa sail . After each use, it is important to clean the sail to remove saltwater, dirt, and debris. By rinsing the sail with fresh water, any residue can be effectively removed. It is advisable to let the sail air dry completely.

When it comes to storage, proper folding techniques should be followed to prevent creases or wrinkles on the sail. Rolling the sail instead of folding it is recommended to avoid damage. Storing the sail in a dry and well-ventilated area is crucial to prevent moisture and mold.

To ensure the Genoa sail remains in excellent condition for optimal performance, conducting regular inspections for signs of wear or damage is important. For any identified issues, prompt repairs should be made to prevent further complications. By incorporating these cleaning, storage and maintenance practices, the lifespan of the Genoa sail can be significantly prolonged.

The Genoa sail , which derived its name from the Italian city of Genoa , possesses a fascinating historical background that dates back to ancient times. Originally used on sailing ships for downwind sailing, this large, triangular sail has undergone advancements in technology and design. These improvements have enhanced its efficiency and versatility. In modern sailing vessels, the Genoa sail plays a crucial role, contributing to improved upwind performance, increased speed, better control, and enhanced balance and stability. Continual evolution in its design and functionality makes the Genoa sail a key element in the world of sailing.

Inspection and Repair

To inspect and repair a Genoa sail, follow these steps:

• Regularly inspect the entire sail for tears, loose stitching, or weakened areas.
• If you notice damage, mark the location with tape or a marker for easier identification during repair.
• Remove the sail from the rigging and lay it flat on a clean surface.
• Patch or reinforce affected areas with suitable sail repair tape or material.
• For tears or holes, clean the area around the damage and apply a patch on both sides of the sail, ensuring it extends beyond the damaged area.
• If there is loose or broken stitching, carefully remove the old thread with a seam ripper and restitch the area with strong, UV-resistant thread.
• Inspect the sail’s hardware, such as grommets or eyelets, and replace any worn or damaged hardware.
• After repairs, clean the sail thoroughly using mild soap and water, rinsing off any residue and allowing it to dry completely before storage.
• Store the sail in a cool, dry place away from direct sunlight, avoiding excessive folding or creasing to prevent damage.

Regular inspection and timely repairs are essential for maintaining the performance and longevity of a Genoa sail. By following these steps, you can ensure your sail is in optimal condition for your sailing adventures.

Some Facts About What Is A Genoa Sail:

• ✅ A genoa sail is a type of large jib or staysail that extends past the mast and overlaps the mainsail.
• ✅ Genoas are categorized by a percentage representing their area relative to the 100% foretriangle.
• ✅ Handling a genoa can be more difficult than handling a jib due to the overlapping area that can become fouled during tacking.
• ✅ The gennaker is a hybrid between a genoa and a symmetrical spinnaker, offering even larger size and greater lift when reaching.
• ✅ The genoa sail was first used by Swedish sailor Sven Salén in the 1920s and later adopted by Dutch fishermen.

Frequently Asked Questions

What is a genoa sail.

A genoa sail is a type of large foresail that reaches aft past the mast and extends beyond the luff of the mainsail. It is used on single-masted sloops and twin-masted boats.

How is the genoa different from a jib?

The genoa is similar to a jib but has a slight difference in reach. While the jib does not reach aft of the mast, the genoa extends beyond the luff of the mainsail.

What is the size classification for genoas?

Genoas are classified by a percentage representing their area relative to the 100% foretriangle. For example, a 100% genoa would reach exactly to the luff of the mainsail.

What are the advantages of using a genoa sail?

A genoa sail allows for a significant increase in actual sail area, providing more power and improved performance in light winds. It is perfect for downwind sailing.

How does the genoa interact with the mainsail?

The interaction between the genoa and the mainsail is more complicated than previously believed. The mainsail reduces air pressure on the lee side of the jib, increasing the angle at which the air meets the luff of the jib, allowing the boat to point higher.

What factors should be considered when choosing a genoa sail?

Factors such as wind speed, geographic location, experience level, and the size of the headsail needed should be taken into account when selecting a genoa sail. It is also important to have multiple sails in the sail inventory to accommodate different conditions.

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A Complete Guide to The Genoa Sail And How To Use It

The Genoa is massively used in sailing, usually teamed up by a mainsail. It’s a triangular sail attached to the forestay that’s easy to work with in any conditions, from light to moderate winds and beyond. I love my Genoa because it is so easy to handle, and when sailing on any point of sail with the wind behind the mast, it does a great job even without the mainsail set.

Today, I’ll explain what the Genoa sail actually is (many people actually mistake it for a Jib, but more on that later) what we use it for and how it actually works. I’ll also talk a bit about what materials they’re usually made of and teach you about the different parts.

To wrap things up, I’ll share some handy tips on how to keep your Genoa in tip-top shape to make it last as long as possible. For trust me, investing in a new one is an expensive affair that I can testify to!

What is a Genoa sail, and what do we use it for?

Let me begin with the basics, just in case you’re unfamiliar with sails. A Genoa is a headsail extending past and overlapping the mast. Genoas are typically larger than 115% of the foretriangle, with sizes varying between 120% and 150%.

This sail is often combined with a smaller main sail on masthead-rigged bluewater vessels but is also common on modern fractionally rigged vessels.

The Genoa is durable, versatile, and usable on all points of sail. There are better options for those who mainly sail upwind, like the Jib, but it is hard to beat for the extra canvas it provides when you turn around and sail downwind. As a result, the Genoa is standard on most modern sailing vessels and is truly a multi-purpose sail.

As I said in the beginning, it’s worth mentioning a common misunderstanding where the terms Genoa and Jib get mixed up. Many people call any headsail a Jib, which is a misinterpretation. I personally prefer to use the correct terminology to avoid any confusion, especially if you carry both on board. You can learn more about the Jib sail in this article.

Tip : If you want to use a simpler word for Genoa, “Genny” works well!

How the Genoa works on a sailboat

The Genoa provides a sail area forward of the mast , aiding in steering and balancing the boat effectively. It is usually flown together with the mainsail to catch the wind’s energy and push the boat forward, but it also works great on its own, especially when sailing any downwind angles.

The sail is curved, creating a pressure difference when exposed to the wind while sailing at closer angles than 90 degrees. The outer, rounded side (leeward side) has lower pressure than the inner, hollowed side (windward side).

This pressure difference creates lift, propelling the boat forward like how an airplane wing produces lift. On any lower angle than 90 degrees, the sail acts like a parachute to move the boat forward.

In simpler terms, I like to look at the Genoa as one of the boat’s main engines. You usually have a diesel engine onboard as well, but since it is a sailboat, you’d prefer to sail it, right?

How to rig a Genoa

The Genoa is rigged on either a furling system or directly to the forestay. Most modern sailing boats have a furling system, a long sleeve that runs from the top of the mast down to the bow and attaches to a drum on the bottom and a swivel on the top. The process for rigging a Genoa and a Jib is the same.

Let us take a look at the step-by-step process on how to rig the Genoa ready to sail onto a furling system:

• Feed the Genoa’s luff into the track on the furler’s sleeve with the top of the sail first and connect the head ring on the sail to the chackle on the swivel.
• Attach the Genoa halyard to the swivel and hoist the sail up. 
• When the sail is hoisted almost all the way to the top, you attach the sail’s tack to a shackle on the top of the drum. 
• Put the halyard on a winch and winch it  tight.
• Now you have to manually roll up the sail around the forestay and tie on the two sheets to the clew of the sail.
• Lead the two sheets on each side of the vessel’s side decks through the sheet cars, turn blocks, and back to the winches .
• Now that the sail is furled away, we need to tie the furling line onto the drum. You have to figure out how the furling line attaches, as it differs from system to system.
• Once the furler line is attached to the drum, ensure that it can wrap itself up freely.
• Pull the sail back out using one of your sheets and monitor that the furling line wraps on nicely.
• Leed the furling line through the blocks and funnels, through the jammer , and leave it next to the winch.
• Furl the Genoa away again using the furling line and ensure that the sheets run freely as you monitor your sail getting wrapped nicely around the forestay.
• Secure the furler line jammer and tidy up your two sheets. Make sure to secure the sheets around the winches.

It is easy to understand why most sailing vessels use furling systems. I wouldn’t want to be without one. They make sail handling such a breeze! You can learn more about the sailboats standing rigging here.

How to use, reef, and trim a Genoa

To use the Genoa, you wrap the furler line around the winch , open the jammer, and pull on either of the sheets, depending on which tack you are sailing on.

You want to keep a hold on to the furler line to prevent the sail from unfurling itself uncontrollably, especially in strong winds.

You can now unfurl the entire sail or just a part of it. Adjust your car position and tighten the sheet once the whole sail, or the desired amount, is out.

How to furl and reef a Genoa

To furl or reef the Genoa, you do the opposite of unfurling it. Ease off the working sheet, but keep it on the winch. At the same time, pull in on the furler line either manually or on the winch.

Remember to move the cars forward and re-tighten the sheet if you are reefing away only a part of the sail. Reef earlier rather than later if the wind starts to pick up. More force in the sail only makes the task harder, and you risk overpowering your boat. Talk to any sailor and the first advice you’ll get is “reef often and reef early”.

When you’ve tried dipping your toe-rail underwater and had everything down below deck shuffled around in a mess, you’ll understand what I mean! (Yes, been there, done that…)

How to trim a Genoa

Adjusting the sheet cars and sheet tension is vital to obtaining an optimal sail shape in the Genoa. Finding this balance is what we call  sail trim . We’re not going to dig too deep into sail trim in this article, but here is a rule of thumb:

You want the leech and foot of the sail to form an even “U” shape on any  point of sail . When sailing upwind, you usually move the car aft. When bearing off the wind, you move the car forward.

The goal is to apply even tension on both the foot and the leech. When you reef the sail, you’ll also want to move the car forward to adjust for the reduced sail area. Sailing downwind doesn’t require the same fine-tuning as upwind sailing, making trimming easier. But keep an eye on the wind and reef before things get out of control!

Here are a few tips when sailing upwind:

• Winch up the Genoa sheet until the leech stops fluttering and the foot has a sweet, even “U” shape. 
• You want to move the sheet car  forward  if the foot is tight and the  leech  flutters.
• Move the sheet cars  aft  if the leech is tight and the  foot  flutters.
• If the wind increases and the boat starts to  heel  excessively, you can either ease off the sheet or adjust your course more head to wind. 

You should play around and experiment with sail trim, as every boat behaves differently. Trimming sails is an art that takes time to master. Staysails, Jibs, and Genoas are trimmed similarly, but the car positions will differ due to their size and shape differences. Once you learn how to trim a Genoa, you can trim any headail.

Sailing with more than one Genoa

Navigating with multiple Genoa’s is great on extended downwind journeys. Most furling systems come with dual tracks, making it possible to fly two Genoa’s on a single furler, which again makes reefing a simple task. This arrangement can also be replicated or combined with Yankees and Jibs if you have several headsails onboard.

Certain boats are equipped with two or more forestays, allowing them to have two separately furled headsails. This configuration is often referred to as a cutter rig. Although most cutter rigs utilize a Staysail on the inner forestay and a Yankee sail on the outer, this flexible rig provides the liberty to explore a variety of setups.

Exploring the different parts of the Genoa

Head:  The head is the top corner of the Genoa. It typically has a ring in the top corner that attaches to the Genoa halyard or the top swivel for furling systems.

Leech:  The leech is the aft part of the sail, located between the clew and head. 

Luff : A Genoa’s luff is the front part between the tack and head. Genoa’s are often equipped with  luff foam  to help maintain their shape when partially reefed on a furler.

Clew : The clew is the aft lower corner of the Genoa where the sheets are attached.

Tack : The tack is the lower, forward corner of the Genoa. The tack is connected to a furler drum on the forestay on most sailboats. Vessels using traditional hank-on headsails tie the tack to a fixed point on the bow.

Foot : The foot of the Genoa is the bottom portion of the sail between the clew and the tack.

Telltales:  Telltales are small ropes, bands, or flags attached to the front of the Genoa’s leech to help us understand how the wind affects the sail and allow us to fine-tune the trim for optimal performance.

Commonly used materials for the Genoa

The most common material for Genoa’s today is Dacron woven polyester, closely followed by CDX laminate. Continuing up the price range, we find woven hybrids like Hydranet, Vectran, Radian, and other brands.

Next, we have more advanced laminates infused with exotic materials like aramids, carbon, and Kevlar. Peeking at the top of the line, we find the latest technology in DFi membrane sails like Elvstrøms EPEX or North Sails 3Di. These sails come at a premium price tag, though.

Modern technology has given us more economical alternatives to traditional Dacron sail fabric. Warp-oriented woven cloth is becoming popular due to its increased ability to keep shape over time without stretching to the same degree as traditionally cross-cut dacron sails.

ProRadial, made by Contender and Dimension Polyant, is a good example and is what I went for when I ordered a new Genoa and main for Ellidah.

North Sails has an  excellent article  that goes in-depth on sail materials.

The difference between a Genoa and a Jib sail

The difference between a Genoa and a Jib is that the Genoa is a headsail that   extends past the mast and   overlaps the mainsail, while the Jib is non-overlapping. The Jib is a smaller sail that is even easier to handle and works excellently when sailing close-hauled and  pointing upwind.  

The larger Genoa also works well upwind but  excels  on any  points of sail  with the wind behind the beam. The Genoa is usually between 120% and 150%, while the Jib is typically between 90% and 115% of the foretriangle size. Both of these sails can be used interchangeably on furling and traditional hank-on systems.

How to Maintain and Care for Your Genoa

Proper maintenance and care of your sails will ensure they operate at their best while minimizing wear and tear. They’ll keep their performance better, make your trip more enjoyable, and you can slap yourself on the shoulder in good consciousness, knowing that you’re taking good care of your equipment. It will save you money in the end, too, which is always nice .

Here are some guidelines on how to preserve and safeguard your Genoa:

• Regularly rinse the sail with fresh water and allow it to dry thoroughly before storing it. Ensuring it’s dry will fend off moisture and mildew accumulation.
• Annually service the sail. Inspect for any compromised seams and mend them as needed. If you spot any chafing marks, reinforce the sail with patches at chafe points and add chafe guards to the equipment it comes into contact with. Typically, the spreaders and shrouds
• Shield the sail from UV rays by storing it properly when not in use. A furling Genoa can be safeguarded by adding a UV strip to the foot and leech.

Check out  this article  to learn more about how to extend the lifespan of your sails.

Final words

Now that we have looked at the Genoa and its functions, you should pack your gear, set sail, and play around with it. Familiarize yourself with how the boat behaves on both tacks, and practice your reefing techniques.

I always stress the importance of reefing; if you don’t understand why now, you certainly will before you know it!

If you still have questions, check out the frequently asked questions section below or drop a comment in the comment field. I’ll be more than happy to answer any of your questions!

PS: Explore more sails in my easy guide to different types of sails  here .

Exploring The Most Popular Types Of Sails On A Sailboat

FAQ – The Genoa Sail Explained

What is the foretriangle on a sailboat.

The foretriangle on a sailboat refers to the triangular area formed between the mast, forestay, and deck. This triangle is 100%. If you want to order a new headsail, you’ll have to measure and supply the sailmaker with these measurements.

What is the difference between Headsail, Jib, and Genoa?

A headsail or foresail is a generic term for any sail set before the mast. In other words, the Jib, Genoa, and Yankee are all what we call a headsail. Their difference lies in their respectable sizes, shapes, and utility on a sailing yacht.

What is the difference between a Spinnaker and a Genoa?

The Spinnaker and Genoa are distinct types of sails used on sailboats, each serving different purposes and being suitable for various sailing conditions. 

Here are the primary differences between them:

• A Genoa is designed to be used on all points of sail, while the Spinnaker is made to be used on deep angles between 120 and 180 degrees.
• The Genoa is relatively flat, while the Spinnaker is shaped more like a balloon and is used in light-wind conditions to capture as much wind as possible.
• The Spinnaker is much larger than a Genoa and is typically made in a thin nylon fabric. The Genoa, conversely, is made of sturdier materials, making it more durable in stronger wind.
• The Genoa is easier to handle and operate as the Spinnaker requires the use of a pole to extend its clew to the vessel’s side.
• While the Genoa can be reefed to adjust for different wind strengths, the Spinnaker is either fully set or fully taken down.
• The Spinnaker is excellent for downwind sailing in a breeze but can be a challenge to operate and take down when the wind increases.
• A Spinnaker usually looks better than a Genoa as it often comes in many beautiful color combinations.

The Spinnaker and the Genoa are both great sails. But as with other tools, they serve different purposes.

Why is a genoa sail called a genoa?

The name “Genoa” traces back to the Italian yachting hub of Genova. The Swedish sailor Sven Salén was the great uncle of The Ocean Race Managing Director Johan Salén. During the Coppa di Terreno race in 1926, Sven Salén modified an existing Jib to craft an overlapping Jib, now known as the Genoa sail.

His innovation proved successful as he scored a victory in the race. The sail then got named ‘Genoa’ as a tribute to the city where this historical sailing innovation was invented.

Is it OK to sail with just the Jib?

The Genoa is an excellent sail to fly by itself, especially on deep angles where the mainsail can block the wind. It also works on other points of sail on its own, but combining it with the mainsail will provide better balance in your boat and possibly prevent excessive weather helm. I often sail with just the Genoa when broad-reaching in moderate to strong wind.

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Robin is the founder and owner of Sailing Ellidah and has been living on his sailboat since 2019. He is currently on a journey to sail around the world and is passionate about writing his story and helpful content to inspire others who share his interest in sailing.

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The Genoa Sail: A Guide

Genoa Sails are an essential addition to any sailboat’s gear. They provide extra sail area and power for improved boat performance and efficiency. This guide will help you learn about the different types of Genoa Sails, how to choose the perfect one for your sailboat, and tips for optimizing its performance and care.

Key Takeaways

• Genoa Sails are large headsails designed for light to moderate winds that produce lift and power for improved speed and performance.
• There are several types of Genoa Sails, ranging from the standard genoa to the roller furling genoa, each suitable for different applications.
• Larger sails offer more power but require more skill to handle while smaller sails are easier to manage.
• Dacron and laminated sailcloth are commonly used for making Genoa Sails, though materials like Kevlar and carbon fiber can also be employed.
• Careful handling of tacking and jibing should be observed in order to prevent luffing or loss of efficiency.

What is a Genoa Sail?

The Genoa Sail is a type of headsail larger than the jib and commonly used to sail in light to moderate winds. It’s characterized by its size and overlapping design, which allows it to catch more wind and gain greater power than smaller headsails.

Genoa Sails are ideal for cruising or long-distance sailing, as they provide better speed and performance while still being easy to handle.

One of the key advantages of the Genoa Sail is its ability to generate lift, pushing the boat forward and helping maintain velocity in light wind conditions. Its curved shape creates this lift, producing an airfoil effect, resulting in both push and drag.

The Genoa Sail permits greater control and maneuverability as it can be adjusted and trimmed accordingly. This makes it highly versatile, so it can be used on different occasions, from casual sailing to high-performance racing.

Types of Genoa Sail

There are several types of Genoa Sails, each with unique characteristics and advantages. The sail types include the standard genoa, the high clew genoa, the overlapping genoa, and the roller furling genoa.

The Standard Genoa

The Standard Genoa is the most typical type of Genoa Sail, designed for light to moderate winds and characterized by its moderate size with an overlapping design. This overlap typically ranges from 110% to 150%, enabling the sail to catch more wind and deliver more significant power than a smaller jib yet still be gentle enough to manage.

The Standard Genoa is highly versatile, suitable for up and downwind sailing and in different wind conditions, from light to moderate. Its ease of control also makes it great for sailors of various skill levels.

To ensure optimal performance, however, proper trimming and adjustment must be made; this entails adjusting the angle of the sail to the wind, controlling the tension on the halyard lines and sheets, and making adjustments to the leech and foot.

When done correctly, this can lead to excellent speed and performance, which is why it’s such a helpful sail in any sailor’s toolkit.

The High Clew Genoa

Featuring a higher clew than the Standard Genoa, the High Clew Genoa offers better control and maneuverability and improved visibility from the cockpit. It’s beneficial in light wind as it catches more wind and produces more power.

To reach optimal performance, however, some adjustments to the sail’s rigging and trim have to be done; this includes ensuring the halyard and sheets are properly tensioned for better sail shape and angle of attack.

Despite these requirements, the High Clew Genoa is still straightforward to handle, making it suitable for sailors of any skill level. With its improved performance in lighter winds, this type of Genoa Sail can be a great addition to any sailor’s toolkit, particularly those who often go on cruising or long-distance sailing trips.

The Overlapping Genoa

The Overlapping Genoa is a larger and more powerful version of the Standard Genoa, with an overlap between the sail and mast that ranges from 110% to 150%. This design allows for enhanced lift and power, perfect for racing and high-performance sailing.

With this kind of sail comes a higher level of difficulty in controlling it in more intense winds, so it is better suited for experienced sailors.

Despite its challenges, the Overlapping Genoa remains popular among those looking to get maximum speed and performance from their vessel. Its increased size and power can provide a significant boost in racing scenarios in which every second counts, and experienced sailors push their limits.

For optimal results, however, proper trimming and adjustment are essential; this includes ensuring the sail’s angle to the wind, halyard tension, and sheet tension are all correctly balanced for a practical shape without supporting too much power or getting damaged.

The Roller Furling Genoa

The Roller Furling Genoa is designed to be easily rolled and stored when not in use, making it convenient and easy to deploy or stow. It’s a popular choice for cruising and recreational sailing due to its simple handling and decreased need for physical labor.

However, its design also limits its performance capabilities compared to other types of Genoa Sails; it can get overpowered in high winds, reducing power and efficiency. As such, this sail is not generally used for racing or high-performance sailing, as these scenarios require maximal speed and performance.

Despite these drawbacks, the Roller Furling Genoa retains popularity among sailors who appreciate its ease of use. However, sailors must take good care of the sail with proper maintenance and consider its limitations when planning their sailing trips.

Genoa Sail Sizes

The size of a Genoa Sail is defined by its relationship to the boat’s foretriangle, which is the triangle between the mast, forestay, and deck. The sail typically ranges from 110% to 150% of the foretriangle, with greater overlap increasing power and lift.

The size of a Genoa Sail can, therefore, significantly affect the boat’s performance and handling. A larger sail can give more power and lift, making it suitable for racing and high-performance sailing; however, this comes at the cost of needing more experience for proper handling, particularly in high winds.

In contrast, smaller sails are easier to control and manage, making them ideal for cruising and recreational sailing; plus, they prove more efficient in higher winds as it generates less drag and won’t overpower the boat.

When deciding on a sail size, it’s essential to examine your boat , including its size, design and intended use. Larger sails may be necessary for race or high-performance scenarios but can be too challenging to manage while traveling; conversely, smaller sails may be better suited for cruising yet could lack enough power or lift when going all out.

Genoa Sail Construction

Dacron is a commonly used material for Genoa Sails as it is durable, easy to handle, and affordable, making it ideal for cruising and recreational sailing.

For more performance-oriented use, such as racing or high-performance sailing, laminated sailcloth (a combination of multiple synthetic fibers with an adhesive) is often employed. It’s lightweight and has higher performance characteristics though special care may be required.

Advanced materials that have been gaining traction in the field are Kevlar and carbon fiber; they provide remarkable strength and durability, which makes them perfect for intense situations, but they cost a lot more money than conventional materials.

Today’s sails employ advanced techniques like radial or tri-radial panels, helping to distribute loads evenly across the sail and heighten performance even further.

Handling Genoa Sails

Proper trimming of the Genoa Sail is essential for creating lift and power and preventing stalling or inefficiency. This involves adjusting the halyard tension to obtain the right sail shape and ensuring that the sheets are correctly tensioned to control the angle of the sail relative to the wind. To adjust the angle of the sail relative to the boat, sailors can move the sheets in or out or change the position of cars or tracks.

Reefing is used when there are high winds, whereby reducing sail size prevents overpowering. This is usually done by partially furling it around the forestay or removing part of it with reefing lines. The reduction depends on wind conditions and boat size; typically, 20-30% should be reduced to maintain control and stability while avoiding damage to rigging and sails.

Once reefing has been done, it’s essential to ensure proper trimming afterward to optimize performance. This includes adjusting halyard tension, sheets, and angle of attack accordingly to achieve an optimal level of sail shape relative to the wind .

Finally, tacking and jibing involve turning through wind direction to change course – these maneuvers must be carefully handled so that luffing or loss of efficiency does not occur.

Difference between Genoas and other sail types

Jibs are an alternative to Genoa Sails, typically used in higher wind conditions and hanked onto the forestay instead of roller-furled. They are smaller than Genoa Sails and generate lift and power as effectively.

Code Zero sails can generate lift and power for light wind conditions, even with very little wind. These sails are larger than Genoa Sails and have a unique shape, making them ideal for racing and high-performance sailing.

Finally, spinnakers are downwind sails designed to capture the wind from behind the boat. These are usually much larger than Genoa Sails, making them perfect for racing or high-performance sailing where speed and efficiency matter.

Genoa Trim and Performance

Maximizing performance for a Genoa Sail involves adjusting the sail’s angle to the wind to achieve the best possible sail shape and angle of attack. This can be accomplished by adjusting the sheets, halyard tension, and sail angle relative to the boat. Proper trimming is essential for creating lift and power while preventing stalling or loss of efficiency.

Optimizing sail shape is another helpful tip for maximizing Genoa Sail performance. This can be done by adjusting the tension and position of the sail to get the right amount of shape and angle relative to the wind. Achieving proper sail shape is crucial for generating lift and power and preventing stalling or loss of efficiency.

Adjusting where necessary, twist is also essential in improving Genoa Sail performance. Twist refers to the difference between the top and bottom angles of the sail, influencing efficiency and power levels. By tinkering with twist, one can optimize their sails performance while generating more lift and power.

Finally, proper maintenance should not be overlooked when it comes to achieving peak performance from a Genoa Sail, and regularly inspecting for damage or wear, cleaning/drying after use, and storing correctly when not in use are all critical steps toward ensuring optimal functioning now and into the future.

Genoa Sails are an invaluable and essential part of any sailboat’s inventory, significantly impacting the performance and efficiency of the vessel. Different types of Genoa Sails exist, each with distinct characteristics and purposes for particular sailing environments. Consequently, selecting the correct sail for your specific needs is essential.

When choosing a Genoa Sail, factors such as use, size, fabric type, and construction quality should all be considered. Additionally, proper maintenance and care of your sail are paramount if you want to reap its full potential over the long term.

Maximizing your Genoa Sail performance can be achieved by adequately adjusting the angle and shape of the sail, optimizing twist when necessary, and consistently maintaining good practice with regard to upkeep.

Genoa Sail FAQs

Q: What is a Genoa Sail, and what is it used for?

A: A Genoa Sail is a large triangular sail deployed on a sailboat’s head stay. It provides additional sail area and power, ideal for light to moderate wind conditions. It is commonly used for cruising, racing, and offshore sailing.

Q: What are the different types of Genoa Sails?

A: Different types of Genoa Sails include standard Genoas, high clew Genoas, overlapping Genoas, and roller furling Genoas.

Q: How do I choose the right size Genoa Sail for my boat?

A: The size of the Genoa Sail depends on several factors, such as the type and size of the boat, sailing conditions, and personal preferences. Selecting an appropriately sized sail to maximize performance and safety on the water is essential.

Q: How do I trim a Genoa Sail for optimal performance?

A: Trimming a Genoa Sail requires adjusting its angle to the wind to achieve the best possible sail shape and angle of attack. This can be accomplished by manipulating its sheets, halyard tension, and angle relative to the boat. Proper trimming allows lift and power generation while preventing stalling or loss of efficiency.

Q: How do I maintain and care for my Genoa Sail?

A: Effective maintenance for a Genoa Sail entails regular inspection, cleaning (after use), storage (when not being used), as well as paying attention to age/condition. Inspecting your sail regularly for any damage or wear; cleaning it after each use; storing it safely when not in use; replacing it if necessary to attain peak performance with optimum safety standards.

Q: How do Genoa Sails differ from other types of sails?

A: In comparison with other types of sails such as jibs, code zeros, or spinnakers, differences between them include size (Genoas are larger), shape (Genoas are more triangularly shaped) as, well as intended use (light-moderate winds).

Flemishing a Line: What is it?

Cleat hitch knot: a boater’s guide, related posts, whisker pole sailing rig: techniques and tips, reefing a sail: a comprehensive guide, sail trim: speed, stability, and performance, cleat hitch knot: a boater's guide.

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Better Sailing

Jib Vs Genoa: What is the Difference?

Most modern sailboats don’t need big overlapping headsails to ensure performance when sailing upwind. In the old days, sailboats were really heavy, their keels were long, and the sail area was the most crucial part that made the boat moving. However, nowadays light masts and rigging are available and facilitate many things while sailing. For example, if you increase the mast’s height and apply a high-aspect sail plan with a jib that overlaps no more than 105%, well this is quite an efficient rigging. So, are you are thinking of going offshore and wondering what sails are the best for your sailboat? Do you want to clarify the difference between a jib and a genoa? Then, follow me and keep reading!

Description of a Genoa

The main characteristics of a genoa are its shape and size. Genoas go past the mast, are triangular, and tend to overlap the mainsail, to some extent. It’s also one of the many headsails that can be set on a Bermudian rig. The numbers 130,150 etc refer to a percentage that has to do about the relationship of the length of the foot of the genoa and from the forestay to the front of the mast. As a result of this operation, i.e. the Luff Perpendicular divided by J (the distance), you get the overlap percentage of the sail.

Keep in mind that the larger the number you get the larger the sail would be. In general, in order to measure genoas, we often use the length of their Luff Perpendicular. In order to construct the LP, you can draw a line from the sail’s clew to the luff, and carefully intersect the luff at the right angle. 

Description of a Jib

The Jib is also a triangular sail that increases sail area and improves handling. Therefore, it increases the sailboat’s speed. Basically, the mainsail controls the stern of the ship whereas the headsail, which sits forward the mast, is most of the time a jib. One of the main functions of the Jib is that it funnels the airflow along the front of the mainsail. This improves the airflow. Moreover, the jib gives control over the bow of the boat, thus making it easier to maneuver the boat. There are different sizes for a jib with the smallest being a storm jib.

In case the boat has a furler, then the size of the genoa or jib can be adjusted according to the wind’s strength, direction, and speed. Usually, jibs are 100% to 115% LP and are used in areas with strong winds. Also, a jib won’t be longer than 115% LP of the fore-triangle dimensions. Lastly, to ensure better performance in high wind speed the smaller area of the jib the better.

>>Also Read: Names of Sails on a Sailboat

Genoa VS Jibs – What Is The Difference Between Them?

Generally, Jibs and Genoas are triangular sails that are attached to a stay in front of the mast. Jibs and genoas are employed in tandem with the mainsail in order to stabilize the sailboat. They usually run from the head of the foremast to the bowsprit. A genoa is like a jib but is larger and reaches past the mast. But, as aforementioned, when the jib overlaps the mast we refer to it as a genoa. Also, a genoa overlaps the mainsail to some degree. Both sails are measured by their Luff Perpendicular percentage, i.e. the area within the fore-triangle that they use. Sometimes, there are large genoas that cover the majority of the mainsail. This mainly happens in light wind conditions where the most sail area is used to increase performance.

And again, when the headsail doesn’t overlap the mast is considered a jib. On the other hand, an overlapping sail is a genoa. Generally, smaller jibs are more lightweight, less expensive, and easy to handle. Jibs might also have a better lifespan as their leeches aren’t dragged across the mast, shrouds, and spreaders. So, all these characteristics make the jibs easier to trim and change. Furthermore, as they weigh less they will heel and pitch less. Lastly, keep in mind that there are different sailcloths weights, and materials that can be used on jibs and genoas. The sail design of each sail is always based on the type of sailboat and the sailing conditions will determine the sailcloth’s weight.

Having Multiple or Less Sails on your Sailboat

In case your sailboat has a larger genoa then you ought to think about getting a smaller headsail. For example, a sail with an LP of around 115% or maybe less. You can use the smaller sail when the wind is getting stronger and keep your genoa in storage. It’s essential to store, protect, and generally take care of your sails a few times per year. So, it’s recommended to often change your sails once in a while. Remember that for every boat has its own sail plan. For example, a boat might need one, two sails, three, etc that will enhance its performance. Each one used for different weather conditions and for different sailing plans.

The rule of thumb says that the fewer the sails less the drag will be. Meaning that you can sail higher to the wind with a single sail rather than having multiple sails of the same aspect ratio and total area. Furthermore, for the same total sail area and same geometrical shape, having multiple sails means that they’ll be less tall. In other words, they’ll catch slower wind closer to the ground. However, for the same total sail area, multiple sails will provide less heeling. This means that you can have lighter structures that support them.

Sail Area and Furling

In the old times, boats used to have long and shallow keels therefore it was crucial to fly a significant amount of sail in order to produce horsepower. But, when a vessel has a light material construction, light masts, and rigging then the height of the mast can be taller without having an effect on the righting moment. So, an overlapping jib, around 115%, results in more efficiency and less dependence on the additional overlap. But, when furling away sail shape from a large genoa you might reduce the sail’s shape efficiency. This is because when using a genoa for strong winds, it’s going to gradually cause an uneven stretch to the Dacron.

Remember that not all sails suit for all kinds of boats. Some boat owners might recommend a specific sail for a specific vessel. But the most important factors that determine what sails suit your boat are the location in which you sail, the type of the vessel, and the captain’s experience. For example, a sail made for Oceanis 331 in Florida will be completely different than a sail made for the same boat that sails in the Meditteranean.

But, what is the best sail size for cruising boats? A 130 or 135% headsail is great because this sail shape is flat thus can be reefed efficiently. However, a 130% headsail doesn’t have a good sheeting angle but is great for offshore sailing. On the other hand, non-overlapping headsails have a narrow sheeting angle so they’re not appropriate for offshore sailing.

In general, light-air sails are large sails and need adequate camber depth to work in light winds. So, when rolling them up and use them reefed you can’t take in enough of the camber to make the sail work windward. And that’s why there are several roller-furling headsails that include lengths of rope or a strip of dense foam that runs along the luff of the sail from the head to the tack.

Apart from that, any sailboat traveling offshore is going to need a small 130% headsail in order to withstand harsh weather conditions. It’s always better to use more than one headsail when voyaging overseas. Last but not least, don’t forget to take into consideration the trade-offs when sailing upwind.

Improve your Sailboat’s Performance

As aforementioned, remember that the most crucial factors that determine the right sail size for your sailboat are the type of your vessel and the kind of passage you’re planning. There are certain things that you can do to improve your sails’ performance, no matter the kind of headsail you have. The first one refers to adding a means of adjusting the sheeting position when reefing and unreefing the headsail. For instance, you can add a block-and-tackle system that can pull the genoa lead forward when the sail is reefed. And when unreefed you can ease it aft. Generally, when moving a lead forward or aft, this changes the angle at which the sheet pulls down on the clew. And when pulling the clew down it trims the top of the jib, but when moving it aft it opens the top of the jib.

The Bottom Line

Modern technology and sail engineering have improved the development of sailcloths, sails’ versatility, and design tools to enhance their performance. Nowadays, you can choose between different types of sails according to the type of your sailboat, location, and experience. So, what’s the difference between a jib and a genoa? In order to clarify the main difference between a jib and genoa you should bear this in mind: When the foot of the headsail is longer than the distance from the forestay to the mast then we refer to a Genoa. Otherwise, the headsail is called a Jib. Basically, a genoa is a large jib that reaches past the mast and overlaps the mainsail. I hope that by reading this article you made clear the difference between a jib and a genoa and how you can enhance your sails’ performance. Wish you a lot of adventurous voyages to come!

Peter is the editor of Better Sailing. He has sailed for countless hours and has maintained his own boats and sailboats for years. After years of trial and error, he decided to start this website to share the knowledge.

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How to Choose the Right Size Genoa

Quick guide for genoa sizing.

In this article, we’ll take a look at finding the right genoa size for boats with overlapping headsails. If your boat does not have overlapping headsails, head over here (insert link) for more information. To help determine if your boat was designed for overlapping or non-overlapping headsails, click here (insert link)

Picking the proper genoa size make all the difference when it comes to speed on the course. Having the correct sail for the conditions will balance the helm and make the boat go faster through the water. Not every boat will have all of these sails, and the maximum size for your headsail can vary depending on how a boat was designed and what the designer intended. Keep in mind that the percentage assigned to each genoa refers to the ‘LP’ measurement of the sail when compared to the boat’s ‘J’ measurement (Read below for more information on these terms). If you have any questions on which sail is best for your boat, feel free to reach out to our team for help (insert contact information)

#1 Genoa – 150-155% (0-15 knots)

The biggest and most powerful sail in the inventory, the #1 Genoa is designed for light and medium-air sailing to get the boat moving. The large sail has a substantial overlap with the mainsail and a deep shape for maximum power. The #1 will also be made from the lightest material of any sail in the inventory to help it fly in lighter breeze. Depending on the vintage of a particular boat, you may see variations including a Light, Medium, or Heavy #1, all of which are generally the same size but with varied shapes and cloth weights.

#2 Genoa – 130%-145% (10-20 knots)

#2 Genoas are versatile sails that cover the mid-range between #1 Genoas and #3 Jibs. #2 Genoas have the most extensive variation in design between boats since they are built to close the gaps between other sails. The sizing of this sail is heavily dependent on rig geometry and sailing conditions. A #2 Genoa will look like a flatter, heavier #1, but it will typically also have slightly less overlap to minimize helm at the upper end of its wind range.

#3 Jib – 95%-105% LP (15-30 knots)

#3 Jibs are the heavy-weather workhorses of the upwind sail inventory. Much smaller, flatter, and heavier than a genoa, a #3 is designed to keep the boat under control and moving when the wind starts howling. The #3 is where genoa-driven boats make the transition to a non-overlapping headsail, meaning its clew will pass neatly in front of the mast while tacking. Not only will it de-power the boat in big breeze, but the #3’s smaller size make it much easier to trim and maneuver.

#4 Jib 80%-95% LP (22 knots plus)

Designed for the days you thought about staying at home, the #4 Jib will make the boat manageable while still being able to power through rough seas. The smallest, strongest, and flattest headsail in the inventory, a #4 keeps the boat flatter and more in-control, as it has a shorter luff-length than a #3 to achieve greater balance in the helm.

Despite our best efforts, every sailor knows the feeling of getting caught in unavoidable weather. The Storm Jib is the sail to use to get home safety on those days. Storm Jib sizing is generally dictated by the rules of the race or offshore category you’re participating in, but one thing is for sure: their area is a fraction of the size when compared to the rest of the headsails. They are typically built with heavy, orange material that can withstand extreme conditions and be seen over long distances. No sailor expects to use this sail often, but every sailor wants to be prepared when the time comes.

Which sail combination is right for you?

Every boat needs to have a different mix of sails to maximize performance across a range of conditions. Variables like common local conditions, sailing style, and the types of races expected can further change the best-suited sail combination. It is best to define those variable first and then begin choosing sails. Once the expectations are set, the next goal is to determine how many sails are needed for the proper setup. Some boats sail with only one or two distinct headsails, while others may be carrying as many as six or seven.

The goal when choosing the proper headsails is to cover the entire spectrum of expected conditions while minimizing the number of headsails onboard. If you plan to stay close to shore or sail in an area that has a narrow wind range, you can expect to carry only a #1 and #3 to cover most conditions. If you plan to head offshore, you are likely to consider carrying more sails to be prepared in any conditions.

Sailing in a light-air venue like San Diego or Chicago will skew your inventory towards lighter sails, potentially with a Light #1, Heavy #1, and little else. Sailing at a venue like San Francisco where the breeze is always on may see you leaving the #1 at home, instead springing for a #3 and #4.

Our team at 180 Sails is here to work with you and customize each sail to fit your specific needs. The wind ranges you see listed under each sail are merely suggestions and can be fitted to suit any inventory or sailing goals you might have.

LP Percentages explained

The sizing of a Genoa is expressed in an LP (Luff Perpendicular) percentage, commonly given just as a percentage and pronounced as two numbers (150% LP is commonly referred to as a “one-fifty”). The LP is a measurement taken from the clew of a sail to the closest point on the luff, creating a line that is perpendicular to the luff. The LP measurement is divided by the J measurement (link to J meaning) to give you the percentage of a given headsail. For example, a boat with a J length of 10 and a genoa with an LP of 15, the sail would measure as a 150% LP genoa (15 divided by 10 equals 1.5 or 150%).

If you have a boat with overlapping headsails (designed for use of a genoa) the LP ran range from 80% (even lower for some storm sails) up to 155%. Though rare, some boats were even designed for genoas in the 165%-175% range.

For boats designed with non-overlapping headsails, the LP percentage will top-out between 100% and 115% depending on the geometry of the rig and sweep of the spreaders.

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What Is The Difference Between a Genoa and Jib? (With Pictures and Tables!)

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I have been in the sailing community for over 10 years, but I come across new words for the same thing almost every day. Left on a boat is called port, and a rope is a sheet, etc., you know how it goes. When it comes to sails, it is the same; there are many complicated names that often are used interchangeably.

Such is the case with the jib and the genoa, but that ends today! This article is all about explaining the differences between two types of foresails (or headsails).

A jib is a foresail (headsail) that does not extend aft beyond the mast; a genoa, on the other hand, is larger and will overlap the mast and part of the mainsail.   A jib sail is used for strong winds and is easy to handle, while the genoa is perfect for downwind sailing in light winds.

Although often mistaken, a jib is not the same as a genoa. So now that we understand the basics, what does this actually mean if we intend to become great sailors?

Table of Contents

Main Differences Between a Jib and a Genoa Sail

To fully understand what a jib and genoa are we need to first learn some terminology.

• The foresail triangle is the area inside the front stay and the mast when looking at the boat from its side.
• A headsail (or staysail) is the foremost sail that attaches to the forestay and reaches back towards the mast.

When comparing these two sails, the most obvious factor is the size. A jib; as mentioned before, that is so big that its clew (the rear lower corner of the sail) overlaps the mast, is called a genoa. This difference in size results in different sail characteristics, which we will discuss more below.

Looking at the boat from its side, sometimes the genoa is so big you can barely see the mainsail, but on a jib the sail will always fit inside the forestay triangle.

In this picture, you can see the foresail triangle in yellow and the headsail reaching past the mast in red, aka a genoa.

Jibs and genoas are classified by percentages of how much they fill the foresail triangle (the area between forestay, deck, and mast). A jib is only a jib if it stays within the 100% mark (filling, but not exceeding, the foresail triangle space). Anything above that number, 130 %, etc., would be considered a genoa.

The boat-world is full of ambiguity and, of course, so also regarding names of sails; even though this is the most common way to classify sails, some would argue that jibs are up to 130%. And some will use the word jib and genoa interchangeably, but:

As long as you see the foresail triangle and how much space the headsail occupies, you now know what type of sail it is.

Jibs and genoas can be made in the same materials, so the increased weight from a genoa is mainly due to increased sail area and extra reinforcements. The jib is usually easier to mount because of its low weight and since it is a smaller package to handle.

Ease of Handling

Handling a jib under sail is somewhat more manageable than the larger genoa since the jib does not extend beyond the mast. It cannot get stuck or entangled in a spreader or side stay (which a genoa often does). Tacking is, therefore, much more straightforward and smoother, and perfect for beginners.

If you are using a hank-on system, changing to the larger genoa will also be tougher to hoist, which of course can be mitigated using electric winches.

Potential Longevity

As we discussed above, the smaller jib has fewer contact points with other parts of the boat . Fewer points of contact mean less chafing and potentially longer life; this life expectancy can, of course, be dramatically reduced if we are talking about a storm jib that will only be used in really rough weather.

Stowing Away and Attaching The Headsail

Lower weight and smaller size make stowing easier. Not only will it pack away much more conveniently, but getting the sail from its stowaway position to its “ready to hoist” position is straightforward compared to a huge “I’m walking with arms full.”

Sailing Basics: When To Use The Genoa

You should use your genoa when winds are low, and you are not getting enough speed out of your jib and mainsail setup .

This is the time to change for the larger and more powerful genoa. The genoa will direct more wind over the mainsail, increasing lift, and boat speed.

Being overpowered on a monohull is when the heeling angle increases (the boat tilts to its side), but the speed of the boat doesnt. A catamaran acts differently and it doesnt heel, instead, you will have to keep an eye on the wind speed table to make sure you dont risk breaking the mast or capsizing.

If you want to know how and when catamarans actually capsize based on statistics, I suggest you read this post of mine: Why catamarans capsize .

Sailing Basics: When To Use The Jib

The jib’s primary use comes from creating an airfoil and feeding the mainsail with smooth flowing air. This means less turbulence and higher efficiency over the mainsail, even though the jib has a small sail area.

Smaller headsails such as the jib are also used for long-distance passage-making, where the risk of enduring storms for days on end is real. For ocean cruising like this, most boats employ a multi headsail setup where at least one should be a small jib.

There is also a place for the storm jib,  something made explicitly for really high winds; these types of staysails can come into two types; either they are of the hank on style, which means you will have to hank off the other headsail before you mount your storm sail.

Or it is of the type that you put over the already furled headsail. Many times the storm jib has a very bright orange color and offers extra strength materials and sowing. The storm jib is even smaller than your already small jib.

Main Similarities Between Genoa And Jib

As we have seen above, there are some differences between the two, mainly in size and therefore also when to use them. But these things aside, there are actually more things in common than what separates them.

Both are headsails or staysails (want to understand catamaran parts? read  this ) and provide balance and power to the cat.

Often, a headsail can be enough to propel the boat at a pleasant and comfortable speed, but what you will notice is that the ship will have a different feel if sailing without the mainsail. The headsail is also very easy to  sail single-handedly ; the roller furling system makes adding or retracting sail area very straightforward while still letting the crew rest.

On the other hand, the mainsail usually requires one or more people to get on top of the deck to pack it up and safely store it.

Raising, Reefing, and Furling a Headsail.

The genoa and the jib can be mounted on a furling system that rolls the canvas up onto the forestay when it is not in use. This is the most common setup since it is fast, easy, and very safe.

Both sails can also use the hank-on system (picture above), which is slower and requires more effort by the crew but minimizes the airflow disturbances that a semi-rolled up furling system will induce.

Frequently Asked Questions

What is the difference between a headsail and a jib.

This is a common question and hopefully, after reading the above you now know that a Jib is a small type of headsail just as a genoa is a large type of headsail.

If you remember anything from this article, I would say this should be the thing;

A jib is smaller and does not overlap the mast or mainsail; the genoa is larger and extends past the mast. The Jib is perfect for rough weather and is easier to use, stow, and attach. The Genoa is heavier, better for light wind conditions, and optimized for downwind performance!

Owner of CatamaranFreedom.com. A minimalist that has lived in a caravan in Sweden, 35ft Monohull in the Bahamas, and right now in his self-built Van. He just started the next adventure, to circumnavigate the world on a Catamaran!

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On another forum much opinion about how to calculate and/or approximate and measure size of Genoa sail. As I am a newbie I treat that style of discussion as if it were a multiple choose question on the sailor test. Usually within a dozen posts or sooner The expert will give the short answer then explain it and then quote the rule and where it can be found. Since I don't speak sailor yet (and there's another topic) I often don't get the answer right when I guess. this is one they haven't quite finished yet so I decided to ask You. Here is my guess and extra question.  The Genoa size is determined by dividing the 'J' distance by the 'LP' distance and expressing it as a percentage. Where 'J' is the perpendicular distance from the mast to the headstay at the deck and 'LP' is the perpendicular distance from the luff of the Genoa to the clew. sail size as a proportion using a right triangle should be useful to determine need. What's the difference between a Genoa and a Jib or are they the same? Is a headstay and a forstay the same? if the sailboat has a bowsprit is the 'J ' measured from the tip of the bowsprit?  

Making sure I have my grade 6 math right... if my J is 14.75', a 150% would have an LP of 22.15'.So if I am looking at used sails, how do I figure out what the percentage is if only luff, foot and leech measurements are provided?  

Claude L.-Auger

Simple math again David 1) The longest dimension will be the luff. So usinf a scale i.e 1 foot = 1/4 inch, Trace a line representing the luff on a piece a paper2) Second longest dimension should be the leech. Using same scale as for the luff, draw a circle whose radius will be equal to the leech lenght scale from one end of the luff line .3) Now, using again the same scale, draw another circle from the other end of the luff line, using the foot scale lenght as a radius.4) Your clew will be at the intersection of the 2 circles.5) Draw a line from that clew to a point crossing the luff line at exactly 90%. That will be your LP line6) Measure your LP line, then calculate actual real lenght of LP using same scale of 1/4" = 1 foot7) Then do as Didereaux suggests: LP/J X 100 and voila, you have the % for your boat.Good luck  

George B., s/v Freya

Moving on to High School Math David, buying a used sail is going to involve a little geometry and trigonometry. Besides the LP measurement, you need to calculate where that clew is going to be in relationship to your boat. For a given LP, the clew can be placed relatively high (a.k.a “Yankee Cut”) or low (a la “deck sweeper”). The lower clew will give you more drive and power at the expense of more weather helm, the sail getting hung up on life lines when you tack, and prone to being overpowered in gusts. The higher clew can carry higher winds but by sacrificing power. A clew placed too high or too low might mess up the geometry of the fairleads. You might not have a track long enough for proper fairlead placement. You will need to do some trig to convert the perimeter measurements to LP. You will also want to take down your current sail and measure the edges and LP so you will have something to compare against. A 150% genoa is pretty much a light air specialty sail and you will find that most clews will be rather low – perhaps lower than you want for your (general) purposes. You could consider getting a smaller sail (like, a 135%) with a low foot which will give you almost the same drive as the 150, but you will be able to carry it in higher winds. If it is really light conditions, you can use your a-kite in a reaching mode.A thought on foam luffs. Reefing a roller furling headsail doesn’t work very well IMHO. When the wind picks up the first thing you want to do is flatten sails which is done by tensioning the halyard for the headsail, thus stretching the luff. Once you begin to roll in the sail, this tension is transferred from the sail to the furling gear. Furthermore, the remaining tension is transferred to the head and the tack with little support in the middle part of the luff. This part then sags out and you loose the flat shape you were trying to achieve in the first place. Sail makers will try to compensate for this by sewing in foam strips into the sail so that when you furl, the added material will bind up, giving you more tension in the luff. Does it work? The fast guys say no, the guy selling you the luff will say “pretty good” and practically no one will emphatically say, “yes, if works just as good as a sail with a smaller LP”.  

Thanks guys! I have also been considering a 135% instead of the 150%. This would give me the ability to take it down to about a 100% as opposed to "reefing" the 150 further than is practical instead of dropping the 150 and raising the 110...  

sailortonyb

Lloyd and David W Lloyd:To answer some of your other questions...1)A Genoa is a jib that overlaps your mast or main. So, when your headsail dont overlap, it is a jib.2)Yes, a forestay and headstay are the same thing.David WOne thing you might do before you make up your mind on whether a 150 or a 135 is to check with a lot of your local sailors with similar size/weight boats. Talk to several, not just one or 2. When I was living on the northern gulf coast almost everyone had a 150 because the average winds were fairly light. Now I'm on the south Texas coast and most i have met use a 135 due to the average winds being much stronger.As for how much can be furled in, that is a matter of how your boat will respond to it. Not all boats fall into the norm of i think approx 25-30% rolled in. I have a Catalina 30 and i have a 150 on my roller furling. I have had it furled down to about 100% on many many ocasions and i still maintained control and exceeded hull speed. I know many will find a million reasons why it wont work, but i will tell you that it does for me. Once your sail is on your roller furling, you wont be able to change it during a blow. Is it better to be safe than sorry or sorry you cant sail 95% of the time because your sail is too small? If it gets that bad, roll in your jib all the way, reef your main amd motorsail back to the dock.If you have the money in your budget, get the 135, a storm jib, a spinnaker and a cruising spinnaker. Unfortunately i dont have the budget or the room aboard for all the sails i "need" so i'll just stay with my 150 for now.  

sail size The formulas given previously are probably more accurate, but a sail maker gave me this formula for rough dimensions. (J x % x I)/2 Insert 1 for a 100, 1.35 for a 135, 1.5 for a 150 etc.  

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What Sail Dimensions are Required to Calculate Sail Areas?

The required sail dimensions for calculating the area of any triangular sails are usually its height and the length of its foot. But that only works for mainsails and mizzens with no roach, and jibs with a 90 degree angle at the clew - and what about high-cut headsails, spinakers and cruising chutes? Read on...

Foresail and mainsail dimensions are universally referenced with the letters 'J', 'I', 'E' and 'P' approximating to the length of the foredeck, height of the mast, length of the boom and the height of the main sail - but more accurately defined further down this page.

Yacht designers need these sail dimensions to calculate thought provoking stuff such as the sail-area/displacement ratios of their creations, and sailmakers need them before they put scissors to sailcloth.

If our sailboat's sails were perfectly triangular then, as every schoolboy knows, their area would be 'half the height, times the base' - but with the possible exception of a mainsail with a straight luff, generally they're not. Here's how it works...

Main and Mizzen Sail Dimensions

These are almost right-angled triangles except for the curvature of the leach (the 'roach') which increases the sail area. 

It's usually calculated as:~

Area = (luff x foot)/1.8, or

Area = ( P x E )/1.8, where:~

• 'P' is the distance along the aft face of the mast from the top of the boom to the highest point that the mainsail can be hoisted, and
• 'E' is the distance along the boom from the aft face of the mast to the outermost point on the boom to which the main can be pulled.

For the mizzen sails on ketches and yawls , 'P' and 'E' relate to the mizzen mast and boom.

For more heavily roached sails, the increased area can be accounted for by reducing the denominator in the formula to 1.6.

Clearly calculating sail areas isn't going to be an exact science...

Jibs, Genoas and Staysail Dimensions

For a working jib that fills the fore triangle - but no more - and with a foot that's parallel to the deck, then you've got a 'proper' right-angled triangular sail, whose area is:~

Area = (luff x foot)/2, or

Area = ( I x J )/2, where:~

• 'I' is the distance down the front of mast from the genoa halyard to the level of the main deck, and
• 'J' is the distance along the deck from the headstay pin to the front of the mast.

Genoas, by definition, have a clew which extends past the mast and are described by the amount by which they do so. For instance a 135% genoa has a foot 35% longer than 'J' and a 155% genoa 55% longer. Areas are calculated as follows:~

Area (135% genoa) = (1.44 x I x J )/2, and

Area (155% genoa) = (1.65 x I x J )/2

High-cut Headsails

But these formulae don't work for a high-cut jib with a raised clew - unless you imagine the sail turned on its side such that the luff is the base and the luff perpendicular is the height.

It's still a simple calculation though, once you know the length of the luff perpendicular ( LP ), the sail area is:~

Area = (luff x luff perpendicular)/2, or

Area = ( L x LP )/2, where:~

• 'L' is the distance along the forestay from the headstay pin to the front of the mast, and
• 'LP' is the shortest distance between the clew and the luff of the genoa.

Spinnaker Sail Dimensions

Much like calculating foresail areas, but with different multipliers for conventional spinnakers and asymmetric spinnakers...

Conventional Spinnakers

Area = (0.9 x luff x foot), or

Area = (0.9 x I x J ), where:~

• 'I' is the distance from the highest spinnaker halyard to the deck, and
• 'J' is the length of the spinnaker pole.

Asymmetric Spinnakers

Area = (0.8 x luff x foot), or

Area = (0.8 x  I  x  J ), where:~

• 'I'  is the distance from the highest spinnaker halyard to the deck, and
• 'J'  is the distance from the front face of the mast to the attachment block for the tackline.

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Genoa / Jib Measurements

Next, you can measure the foot of the sail(2). Use the same technique to measure the foot of the sail as you did for the luff. Give us an idea of how much rounding you have on the foot. “Rounding”, or foot round is the curve of the foot of the sail.

Leech length (3) can be measured the same way as the luff. Take the tape measure from the headboard to the clew. Notice that you have extra cloth if you stretch the tape tight toward the back of the sail. This extra cloth to the main is called “leech roach” This extra cloth gives the sail more area, and is well supported by the battens of the sail. Measure this in the area of each batten. This will give us the amount of extra cloth given to the leech of the main.

Battens, are not always the same for each sail. Measure the length of each batten or batten pocket (5). Also give us an idea of how wide the pockets are and how long they should be for that perfect fit.

Your headboard is the support for all of the extra cloth on the back of the sail. Measure the top of the headboard for the width of the head of the main. Let us know what type of material is used for the headboard, nylon or metal. The mast will have some sort of bend as you look up from the bottom to the top. This is called Spar or “mast bend” (7). By using the halyard, you can gauge how much bend you see , if you look up from the base of the mast. This measurement is in inches and the most bend you may see is about 50% up and can range from 2 to 6 inches. This is how we produce the correct “luff round” so it fits well in the front of the sail and matches the bend in the mast.

We must know the type of mast slug you have for your main, for they vary in size and shape. They may be flat, or round with either webbing to attach them to the sail or shackles. We have a fair way of gauging sail cloth, but the more we know about the sail and how it is to be used, the easier it is to replace it and make it correct the first time.

How Much Does A New Genoa Cost?

• October 6, 2022

When the time comes for a fresh sail for your boat, you need to know how much you’ll pay. It can be tough to predict how much a new genoa sail is, especially given the various features and customization options available to you on the modern market.

Factors That Affect New Genoa Cost

Genoa sails are large jibs or staysails that usually extend beyond a boat’s mast. In some cases, they will overlap a mainsail if viewed from the side. Regardless, genoa sails have large surface areas, so they can majorly increase the speed of watercraft, particularly in light to moderate winds.

Given their importance, it’s no surprise that new genoas can vary heavily in cost. For example, a new genoa sail for a boat measuring 42 feet to 50 feet may cost between $5000 and $9000.

Let’s get more specific since certain attributes may affect the cost of a new genoa sail.

Sailboat Size

As touched on earlier, your sailboat’s size will impact the cost of a new genoa sail. That’s because larger boats need larger genoa sails if they are to sail properly and benefit from the genoa rig. If you have a smaller-than-average sailboat, you can expect your genoa sail to cost less than a comparatively large one.

Material Used

But the materials used may also impact genoa sail prices. For example, the popular sail manufacturer North Sails produces new genoas in three different materials:

• Dacron , which is a cost-effective yet not very durable material. Dacron genoa sails could be beneficial if you want to save money or if you don’t plan to use your genoa very often. If you expose it to too much wear and tear, you’ll find that it becomes baggy and performs less effectively over time
• North Panel Laminate , which is a specialized laminate sail material intended for increased durability and longevity. Laminate materials may be bolstered by compounds such as carbon. Regardless, these are great choices if you have a little extra money to spend and want your genoa sail to last for as long as possible
• 3Di , a special North Sails material that’s made of woven filaments. Each genoa sail is produced over a 3-D mold to ensure maximum durability and performance over the years. This is the most expensive choice, but it may be worthwhile in the long run

Type of Sail

Your new genoa sail’s price can further be affected by its type. North Sails and similar manufacturers offer many different cruising headsails. For example, you can choose a furling roller genoa, which furls up for easy storage, protection from the elements, and increased longevity if you don’t need the sail deployed at any one time.

Inclusions or Optional Features

More than many other factors, the inclusions or optional features you choose with your genoa sail will impact the final asking price you can expect.

• Depending on the manufacturer, you may be able to select add-ons like:
• A stainless steel clew ring
• A heavyweight luff tape so you can easily furl the sail when needed
• A drawstring sail bag for waterproof storage
• A foot cover and UV leech
• Extended tack and head patches
• A radar patch for easier detection
• Webbing on the head and tack

None of these features are necessary for smooth genoa sail operation, but they can make your experience better or act as convenient additions to your sailing equipment. Consider whether you’ll use these optional inclusions and features carefully before adding them to your order, as they can significantly impact the total price.

Average Genoa Sail Price

Generally, you can expect to pay between $3000 and $12,000 for a quality genoa sail, depending on your boat’s size and the factors mentioned above.

Where to Buy a New Genoa?

Luckily, you can buy a new genoa on SailTrader right now. North Sails’ new cruising headsail is available as a genoa, and it’s available in the materials and types mentioned above. This makes it quick and easy for you to get a quote for a new genoa sail for your watercraft whenever you need it. 

Even better, you can use SailTrader’s marketplace to find many more sails, such as mainsails, for your boat. Why wait? Check out SailTrader today!

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PS37 genoa -- what size?

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I'm getting ready to replace all of my sails. Currently I have what I think is a standard PS37 cutter setup by Ullman Sails, namely a main on battcars, staysail on roller furler, and 120% high-clew genoa on roller furler. It's easy just to get replacement sails from Ullman, but as I have gotten into this process I have been advised to do different things. One sailmaker wants me to extend the foot of my staysail. Another wants to lower the clew of my genoa to increase its size for light winds. Another wants to change the main. I'm not even mentioning the complications with installing a new sail on my current battcars (easy to do, hard to choose what to do). What are those of you with the PS37/Crealock 37 using for sails? Right now I'm inclined to take the advice to enlarge the genoa a little bit. The PS sail plan for the boat includes a 130% genoa as one of the possible sails, so I think I should go for this at least. (I should point out that I'm calling mine 120% only because that's what US sails calls it. I haven't compared the measurements to get an exact percentage.) Yesterday in 10-13 knot winds the boat was nicely balanced, but I started out in about 3-5 knots and a bigger genoa would have been nice to have. This boat was definitely designed for Force 4 (like most sailboats?); it's just perfect at those wind speeds -- such a pleasure. The boat sails itself. Less wind can be a tiny bit frustrating (passengers always want to go faster...), and more wind is also a pleasure but of course livelier as the wind picks up. In 20+ knots I'm usually on a reefed genoa and reefed main, so having a larger genoa wouldn't be any problem (it would be reefed down), assuming I have enough line on the roller furler. The benefit of the larger genoa would come in light winds. Advice on the PS37 genoa (or sails generally)? Experiences? If anyone wants to recommend a sailmaker, I'd welcome that, too -- but I think that opens a can of worms. Many thanks. Paul 2004 PS37  

Paul, In my opinion in order to decide what size Genny you should have depends to a great extent on what kind of sailing you intend to do.If you are going to cross oceans you need manageable sails that wont overpower you when things turn nasty (quickly).On the other hand for day sailing in fairly protected waters then larger sails are better.I relied on a sailmaker's recommendation when I replaced my genny and had a decksweeper 150% made not realizing that when trying to furl as the wind howled it would be a bear-and that its shape when partly furled is not the best.On a do- over I would opt for a high-cut Yankee genny and staysail combo for offshore work. Of course I'm getting older and thus less adventurous. goodluck, Dianne and Chuck Burke S/V NiftyNickers C37 #139  

niftynickers said: Paul, ... On a do- over I would opt for a high-cut Yankee genny and staysail combo for offshore work. Of course I'm getting older and thus less adventurous. goodluck, Dianne and Chuck Burke S/V NiftyNickers C37 #139 Click to expand...

I have a 135% Genoa on a Profurl C420 furler made by Quantum. I 44 ft, J 15.75 ft with foam luff. 6.62 woven polyester. 457.1 ft2 This off season I had a 100% working jib made. 338.6 ft2. HA 7.62 woven polyester for offshore work.  

It is very dependent on where you sail and what average wind speeds are. But a pretty conservative cruising recommendation is a 135 high clew jib with foam luff. Big enough to provide some power in ligt air, not to big to roll up pretty small and keep some shape. The foam luff by the way helps the sail retain shape as it is furled.  

To me the crux of your question is the role/design of the staysail. Is the staysail a strong material sail that serves as your heavy wind jib? At what wind speed will the boat perform satisfactorily to windward with just the staysail and a full main? I would hope with a cutter you'd be in the special position where you can do the 130% or so genoa, and skip the foam luff, as the staysail/full main is in effect your first, and quite convenient, reef. I've always liked the idea of the cutter rig with a staysail, on the understanding that the staysail served as a permanently mounted high-wind small jib. Sound right?  

Sailingfool: Indeed, the boat does perform well to windward on a _reefed_ main and staysail. A full main with much wind would involve a lot of weather helm; I'd need the genoa to keep the boat balanced. The true cutter setup is great because it gives lots of options. All of these ideas and suggestions from everyone are very helpful. The truth is, I'm trying to have it all. Insofar as possible, I want an arrangement of sails that's good for as many conditions as possible. I definitely need sails for serious conditions offshore, but the truth is that very often winds are light. I'm often alone, so the most complicated light-wind arrangement I go for is a poled-out genoa. I'm inclined to go for a 130% genoa (I have 120% now), probably with a foam luff. (Sailingfool: Why do you say "skip the foam luff"?) The sail plan for the Crealock 37 design includes a 130% genoa. Because I have roller furlers, the tack must be higher than Crealock's original design, so getting the same area means a longer foot (this may explain why my boat came with a 120% genoa). My current plan also includes replacing my staysail with one that's heavy-ish (8.8 oz. U.S. wt. Dacron). I often use the staysail with double-reefed main, as above, partly because the staysail works great in strong winds and also because it's so easy to use: it can be trimmed without a winch handle in most conditions, at least if I'm quick in setting it during the tack. I may also be a bit old-fashioned and get a trysail, which I don't have now. I have two reefs on the main but sometimes I want even less sail. I have an extra track on my mast (typical strong setup for a Pacific Seacraft), so this is an easy addition for the next offshore passage. Does any of that sound daft?  

Hold the presses! This just in from Thumper at the factory (another reason to buy a Pacific Seacraft): "Most go with a 105 Yankee if cutter rigged, main reason is when you go to a larger head sail, tacking it through the slot gets tough, especially if you have the staysail on a furler. The boat can certainly handle the 130 as a cutter setup and if you are not concerned about tacking it through, your logic makes good sense." BTW, I have no problem tacking the 120% through the slot, even if the sail is backed. This has me thinking that a slightly larger staysail could make sense. This was the recommendation of one sailmaker who looked at my boat...  

My Genoa is a "130" and not Yankee cut, my 37 is cutter rigged with the staysail on a furler, both headsails have foam luffs. I haven't had any issues tacking. Local winds usually 16-20 knots, quite often I'm staysail and single reefed main going to windward here. Video: Tacking  

Thanks Sailak. I'm envious of your cruising grounds. I see in the video that you have UK sails (main and genoa; US sail staysail). How do you like the UK sails? They have a rep a stone's throw from where I keep my boat, and they are less than US sails. Are they Dacron? Do you know the weight (oz.) of each sail? I'm pushing my luck, but do you by chance have the sail measurements to hand? I see that you are using the running backstays. I think there has been a discussion on this before, but I'm curious about when you use them. Obviously it's only when the main isn't far off center (close reaching/hauled), and presumably only when you are using the genoa, but in how much wind?  

Thanks Sailak. I definitely don't want you to go out into the mud to measure sails! Having said that, for those on the list lucky enough to be able to take down their sails like that, I recommend measuring them before putting them back on the boat. Those measurements could be very handy later if you want to order a new sail without taking the old one down -- say, when you are cruising outside the USA. I like your attitude toward using the running backstays. Maybe I'll use them today... I guess the consensus on the size of genoa for a PS37/Crealock 37 is, well, no consensus. It could be anything depending on one's preferences. I had assumed that my setup (120% hight-cut RF genoa in front of RF staysail) was common, but maybe not. I'm inclined to conclude that a 130% is just fine. If it's manageable in Alaska, it will be in most places. The factory confirms that 130% is OK even though they are putting far smaller sails on some boats (105%, which I think would be too little sail area in many parts of the world). Crealock also designed the boat for a 150% (with aft rail track, which I've got). Now I have to decide who will make the sails. I have Ullman now, but I wonder if I can justify paying their price (their quote is about 50% higher than some other reputable sailmakers).  

My sailmaker said he had made many 130 Yankee's which owners later wished had been 110 or so. I went with the 110 and have not regretted the decision at all. But then I'm in my later 60's and sailing the boat back and forth from Maine to the Bahamas most years -- usually singlehanded. I get enough exercise without a 130 up there! Good luck with your choices, Jay SV Kenlanu Buck's Harbor, Maine  

Yesterday I was sailing along, thinking about what I need for new sails. The wind was about 10-12 knots; all was OK under full sails, speed about 6 knots. There was major vessel traffic (including a HUGE container ship, for which I did a 360 to keep my distance as he plowed by), making me glad my genoa is high cut. Behind a big island, wind naturally fell away. I was thinking it might be nice to have a bigger genoa. Some time later, there was a sudden gust of 26 knots; the boat heeled over, as it would under full sail. Just as I was deciding what to do, the wind fell back to 12 knots and all was well. But that gust reminded me that a bigger genoa could be difficult at times. My conclusion after a few hours of sailing: maybe I have been wrong to think that I need a larger genoa. Maybe my boat already has the best all-around setup for the PS37 (RF headsails with the genoa being 120% and high-cut). By the way, my PS37 as a bowsprit. Some PS37s/Crealock 37s don't have this. For anyone reading this discussion, bear that in mind. Without the bowsprit, I think a smaller genoa might be preferable because the gap between the headstays is at least a few feet shorter. With the bowsprit, the gap is large, so getting the genoa through isn't difficult. Just a thought.  

I think that the gust of wind might have answered your question about which size genny to have on your boat.Sounds to me like you have the right sail combo right now.We all know that the boat can carry larger sails but to what advantage?Unless you are going to race her and have a crew of deck apes I suggest manageable sails for a less sporting day of sailing.Just my 2 cents. good luck, Dianne and Chuck Burke S/V NiftyNickers C37 #139  

For those interested in this thread... I have a "120%" genoa on my PS37. Simple enough. But I also have a factory-installed bowsprit, which puts the forward headstay farther forward than in Crealock's original designs. If I understand things, in fact my existing genoa is actually less than a true 120% of my boat's foretriangle, and likely closer to 120% of a foretriangle without bowsprit. This in turn means that my planned new 120% genoa is actually going to be only about 5% smaller than what Crealock called a 130% genoa (on a 37 without bowsprit). That is, my foretriangle is bigger, so any percentage of that is going to be bigger. Makes sense. The upshot is that this is another reason not to go over 120% genoa (that is, truly 120% of my boat's foretriangle): not only would tacking be a tad bit more involved, among other complications mentioned in this discussion, but it would be substantially bigger that Crealock's 120% genoa (I haven't done the math, but very much bigger than a standard 130%, I guess) and have a moment that is farther forward than Crealock planned. It gets more complicated, however. Making a genoa that is ACTUALLY 120% of my foretriangle means extending the clew back a bit. No big deal -- except my furling drum is already full of line when the genoa is unfurled! I definitely don't want the bother, or the cost, of replacing the furling drum with a bigger one. So my thinking at this moment is to ask the sailmaker to give me what I've got now. By the way, he wants to extend the clew on my staysail a bit, which I'll let him do, not least because the new headsails will have foam luffs (which I don't have now) and should work better when reefed. Who said getting new sails would be simple?! This isn't rocket science, but some days it seems that way to me...  

I think a lot depends on where you are sailing. On Crazy Fish I have had a 130% fairly low cut genoa, a 105% Yankee and currently a 135% fairly high cut genoa all on a Harken Roller Furling. I have a hanked-on staysail and the stay is detachable. For sailing in San Diego with its normally light winds the 135% work well and the higher cut works better for visibility. The visibility comes in handy when sailing on the bay on weekends. Offshore not so important. The staysail is normally not flown and the stay is detached so tacking is much easier. The staysail gets hanked on but normally stays in its bag when sailing to the north where the wind can be stronger. I don't think I get much out of it when using it with the 135% so its normally flown when the wind increases and the genoa gets rolled in. With the 105% Yankee I used the staysail a lot with the Yankee and would typically gain a 0.5 knot or so when flying it. I used this setup quite a bit when the boat was based in Los Angeles and made fairly frequent trips to the Channel Islands where the winds tended to be stronger. Easy to adjust the sail area to match the windspeed. In the future I am looking to add a collapsible bowsprit to the boat to get the mounting point for the asymetrical spinniker out in front of the bow pulpit. It will also be used for a furled Code 0/screecher type sail and then I may look at having a new Yankee built for the boat or at least a smaller genoa built (120 to 110 ?). Regards Marc Hall Crazy Fish - Maintaining, Upgrading and Sailing a Crealock 37 | SV Crazy Fish  

While amidst my Airhead installation I too have been notified that my head sail needs replacing. I was fortunate enough to get my current sails for free when I was converting to rollerfurling but had been warned that they had been rolled backward and the sail had UV damage. Sure enough it tore but the tear was halted by the sacrificial material. I was hoping to recut but was told that the UV rot creeps in Dacron and the sail should be replaced. It is a shame because the rest of the sail is in nice shape. I hate when these things stack up on top of each other. Lantau, I havn't done any research yet but can you give me a price range that you've been finding? What is the proper way to go about getting prices? Should I just take my measurements and call around or should I have someone come out to my boat and take a look?  

I think this is one of those things that sailors won't agree on. My approach has been to get quotes from five or six sail makers. The prices are all over the place, but it's hard to compare quotes because each sail maker quotes a slightly different kind of sail. To get more comparable quotes you would have to specify exactly which kind of material you prefer, the weight (bearing in mind that weights mean different things to different sail makers; 7 oz. to one is 8 oz. to another, etc.), et cetera, down to the last detail. It sounds like you definitely need to have things measured before you finally order a sail because your boat's furling system and the like may be unique and certainly won't be generic. If your boat is recent, Pacific Seacraft may have the measurements. (Mine is 2004. They didn't, but the original sail maker did. Alas, the latter's prices are near the top and with shipping the costs would be double what I'd pay locally.) What amazes me is how the expert sail makers differ in their advice. Tell them what you want and they all come up with different advice. For example, I'm told that I'm crazy to have a genoa over about 5 oz. by one guy while another insists it should be 9.5 oz.! One assumes that something in between is about right (7 oz., but, again, 7 oz. in Britain isn't the same as in the USA, at least not according to some sail makers). No way am I putting a huge sail of 9.5 oz. off my bow; now way would a 5 oz. genoa last long on a PS37 (at least not mine, with lots of stuff for the sail to chafe across on each tack). I have been going back and forth for months with a sail maker that I paid to come measure my boat. Of course they can throw something together easily, but I have learned that you really need to be very specific about all the details. I'm not an expert with decades of offshore sailing experience, so these details don't come easily to me. (Hence asking questions on this forum!) Headsails are relatively easy (but I hadn't considered foam luffs at first, so that was something I have decided to add), but mainsails are a pain in the backside because you need to decide where the reefs will be, what kind they will be and so forth, and you need to be sure that the luff gear (in my case, a battcar system) is compatible with the new sail (very complicated). Did I mention battens? There are so many kinds. Sail makers quote one kind (short, round), but likely you'll need another (long, flat).... Get a quote from one of the top sail makers. Then cut that by about 75% to get the amount you would pay one of the less-known makers. Add in shipping costs to get the final price. Bear in mind that they use different materials; well, not always. Sometimes they source their Dacron from the same place (often USA) and have them stitched in China or somewhere else. My advice would be to go with someone nearby if possible, ideally someone you can get along with. Alas, the local guy near my boat is, well, odd from my perspective, and I have trouble communicating well with him. Each time I decide to buy from him he says something that puts me off. (And he's far from the least expensive.) Who would've thought that something like that would be so important? That's sailing... I'm sure these comments will conjure up debate. Truth is, I don't know what's best. I'd have new sails by now if I did.  

On my PSC 37 I use an 80, 100 and 125% headsail. The 100 and 125% have high clews so as not to hit the water when poled out. The 80% allows somewhat better balance in winds about 20 to 25 knots. It can also be sheeted inside the shrouds which anything bigger cannot. It has a foam luff. The 125% is for lightish winds (<10 kn) which is typical of San Francisco Bay in winter. 125% is also the largest headsail for which there is no penalty when racing. It is also at the upper limit in weight which I can handle.  

Update: The new genoa -- and new staysail and mainsail -- are now on the boat. I ended up ordering what I had before: "120% high-clew" genoa. If anything, the new one seems to be a tiny bit smaller than the original (to do with back and forth communications with the sailmaker about lots of little details). The "120%" is debatable because my triangle is bigger than Crealock's original sail plan -- I have the bowsprit and bobstay setup (common on all the recent PS37s, I think) -- so I guess it's probably at least 120% of the triangle if measured from the bow. The new genoa (and staysail, too) has a "foam luff." I didn't have this before. OK, now for the results: Wow! What a difference new sails make. I sailed off the mooring with full main and genoa and the boat shot up to 7.5 knots immediately. It was low Force 4, so that's what should happen, but it would have been more like 6 knots tops with the old sails. But that was a beam reach in ideal conditions, so probably not a good test. Later I sailed 30% to the apparent wind, using all three sails, and was doing over 5 knots (that was borderline Force 3-4). In the past I could never get over about 3.5 knots that close to the wind. I think the biggest difference is the new mainsail. I went all out and got new battens (and new end fittings), so it has better shape. I'll have to do more sailing to get a better idea about what these new sails do for me, but it's already clear that the difference is substantial. I didn't reef the headsails yesterday, so I don't know yet if the foam luffs will improve the shape and give more power. Now I have to fret for a couple months about the lovely new sails chafing the shrouds.  

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> > Please support our sponsors and let them know you heard about their products on Cruisers Forums. 17-01-2012, 14:07   . One sail maker suggested that I reduce sail area of my from 150% to 135%. I can understand the pros and cons of reducing the area and it is probably beneficial for me as I intend to do a lot of solo cruising, but it almost feels wrong giving up a bit of speed. I am also thinking about a roller for light reaching, so I am starting to think I will hardly ever miss the sail area. I'm just wondering if it is common for cruisers to choose to reduce their sail area? 17-01-2012, 15:45   Boat: Now boatless :-( . One sail maker suggested that I reduce sail area of my from 150% to 135%. I can understand the pros and cons of reducing the area and it is probably beneficial for me as I intend to do a lot of solo cruising, but it almost feels wrong giving up a bit of speed. I am also thinking about a roller for light reaching, so I am starting to think I will hardly ever miss the sail area. I'm just wondering if it is common for cruisers to choose to reduce their sail area? 17-01-2012, 15:50   Boat: Sundeer 64 adviced me to go fom 100% to 95%. his rationale was that my new tri-radial hi aspect was gonna be so much more powerful that it'll outperform the old sails anyway, plus his computer program indicated better sail balance. I went for it and am happy I did 17-01-2012, 16:02   - Elmore Leonard 17-01-2012, 16:35   17-01-2012, 16:39   Boat: Cooper 416 Honeysuckle of the iron genny that's leaving me a little threadbare! 17-01-2012, 16:45   Boat: Lagoon 440 and sailed a lot of the way on my last from , to Fortaleza, using both Genoa's on downwind ... Found It absolutely fantastic and so much easier to control than the asymmetric ... Trip took us just over 21 days 17-01-2012, 17:33   Boat: 1976 Sabre 28-2 making. For the other 20%, an asymetric will do the trick. The cruising prevailing winds usually mean reaching or running. Perfect conditions for an Asymetric especially if the winds go light. The remaining 5% is going to be way too much or not nearly enough wind. We never experienced the former and fortunately not a lot of the latter, either. A 150% genoa only really comes into it's own in quite light air to windward. Since we cruisers don't need to go to windward, it will mostly be taking up space. If you're like me and must sail no matter what, crack off a bit and go with the Asym. Don't know what the summer winds are in the Eastern . If they are light like and you plan to stick with that area and season and do coastal cruising, then a 150% would be the sail to have. 18-01-2012, 00:31   18-01-2012, 00:55   Boat: Cutter-Rigged Moody 54 18-01-2012, 02:47   18-01-2012, 03:40   Boat: Able 50 was being conservative. If you plan on lots of solo sailing then make your biggest 120%. 08-02-2012, 17:25   Boat: 1989 Pacific Seacraft 31 where the winds are often light. The 150 the boat came with used too heavy a to set properly. When the winds were light, the sail would fold. When the winds kicked, the sail was too much. I had it cut back to about a 115 which is a better size for this weight and added an asymmetrical spinnaker with snuffer. Couldn't be happier. 08-02-2012, 18:34   Boat: Roberts, Offshore 44 , a 110 from the bow, both on furlers. Every thing is backed up with a staysail. We would not give any of them up. That said when we were in we would never use the 155 in the summer. When the wind was ripping, there were times when we would be down to just the staysail and a double reefed main just flying along. Here in the 155 sees a lot of use. we have been known to set all three and just fly. You need to balance the sail to the conditions. Trying to cover all of the bases with just one sail is asking a lot of it. You will be giving up performance, or being over powered, and that is just slow, not to mention all of the stress you will be subjecting your boat to. As with everything there compromises trying to get the job done with just one sail. Thread Tools Rate This Thread : Posting Rules post new threads post replies post attachments edit your posts is are code is are are are Similar Threads Thread Thread Starter Forum Replies Last Post scape Multihull Sailboats 38 25-01-2012 13:49 Waterjack Engines and Propulsion Systems 3 09-12-2011 09:36 Ralgeol Deck hardware: Rigging, Sails & Hoisting 3 02-10-2011 08:11 ardoin Deck hardware: Rigging, Sails & Hoisting 28 21-09-2011 15:09 Sabbatical II Deck hardware: Rigging, Sails & Hoisting 32 11-09-2011 10:33 - - - - - - - Privacy Guaranteed - your email is never shared with anyone, opt out any time. Home > Jib Overlap Calculator Calculate Your Existing Headsail Size Not sure what size Jib or Genoa you currently have in your sail inventory? Input your existing sail measurements and “J” from your rig specs in the calculator below to discover your sail area and LP%. For proper use of the calculator input all measurements in meters. (Example: 12.5) JIB Calculator Results   Sail Area: Luff Perpendicular: Overlap(%): " * " indicates required fields Thanks for telling us a bit about yourself and your boat. Our team will send you a preliminary quote based on information we have gathered from sailors similar to you. We will give you a call in order to narrow down the options on your quote and improve the accuracy. If you want us to call you at a specific time, feel free to schedule a time on our calendar! Thanks for telling us a bit about yourself and your boat. Our team will reach out to offer some suggestions and get started on finding you the perfect sail! 443 IMAGES The drawing at left shows the difference between a 150 and 130 percent A Sailor's Guide To Buying New Genoa Sheets A Sailor's Guide To Buying New Genoa Sheets Genoas Understanding Sailboats and Sailing A Sailor's Guide To Buying New Genoa Sheets VIDEO sailtrim upwind one app genoa halyard Canoe Sail Kit from SailboatsToGo.com Flies Across Lake Universal Marine Montego 20 under genoa only 5 Reasons Why the 34-Foot Boat Rules the Solent Waters Precision Sails Review Robbe Atlantis Genoa Sail Test COMMENTS Genoa (sail) A genoa sail is a type of large jib or staysail that extends past the mast and so overlaps the main sail when viewed from the side, [1] sometimes eliminating it. How to determine Genoa Size It is just convention or tradition in the sailing community to express a genoa's size as the percentage of the boat's J measurement represented by the genoa's LP measurement? Understanding the Function and Design of a Genoa Sail A Genoa Sail is an essential component of a sailboat, providing improved upwind performance, increased speed, better control and maneuverability, and enhanced balance and stability. 2. The Genoa Sail has different parts and features, including the luff, leech, foot, clew, and telltales, which play important roles in its operation. 3. How to Measure for a New Headsail (Jib or Genoa) Step-by-step instructions and diagrams for how to measure for a new head sail, Jib or Genoa. Walks you through the measuring process. If you can read a tape measure you can measure your boat for a new Jib or Genoa! The Genoa Sail Explained: A Complete Guide A Genoa is a headsail extending past and overlapping the mast. Genoas are typically larger than 115% of the foretriangle, with sizes varying between 120% and 150%. This sail is often combined with a smaller main sail on masthead-rigged bluewater vessels but is also common on modern fractionally rigged vessels. What size Genoa If the boat was raced, it might have had a 90% jib for heavier air and a 140-150% high clew genoa. Boats designed to use 180% genoas typically would have an SA/D around 15-16. In conditions below 10-12 knots, they would sailing with that 170-180% genoa and actually be sailing with an SA/D around 20 or so. The Genoa Sail: A Guide The size of a Genoa Sail is defined by its relationship to the boat's foretriangle, which is the triangle between the mast, forestay, and deck. The sail typically ranges from 110% to 150% of the foretriangle, with greater overlap increasing power and lift. The size of a Genoa Sail can, therefore, significantly affect the boat's performance ... Jib Vs Genoa: What is the Difference? In case the boat has a furler, then the size of the genoa or jib can be adjusted according to the wind's strength, direction, and speed. Usually, jibs are 100% to 115% LP and are used in areas with strong winds. How to Choose the Right Size Genoa The biggest and most powerful sail in the inventory, the #1 Genoa is designed for light and medium-air sailing to get the boat moving. The large sail has a substantial overlap with the mainsail and a deep shape for maximum power. What Is The Difference Between a Genoa and Jib? (With Pictures and When comparing these two sails, the most obvious factor is the size. A jib; as mentioned before, that is so big that its clew (the rear lower corner of the sail) overlaps the mast, is called a genoa. This difference in size results in different sail characteristics, which we will discuss more below. How to determine Genoa size? A sail that is smaller than the area is called a jib. A sail larger than the area is referred to as a genoa. The percentage label is shorthand for the relative size of the genoa or jib based on the specific boat. Genoa size Nov 27, 2005. #8. sail size. The formulas given previously are probably more accurate, but a sail maker gave me this formula for rough dimensions. (J x % x I)/2 Insert 1 for a 100, 1.35 for a 135, 1.5 for a 150 etc. Not open for further replies. On another forum much opinion about how to calculate and/or approximate and measure size of Genoa ... Sizes of genoas The measurements of the sail are used to calculate sail area and then compared to the standard sail area for the particular boat. If a proper phrf handicap was generated the certificate would list your genoa "code". A code 5 genoa would be standard with no adjustment to your rating. A Sailor's Guide To Buying New Genoa Sheets Get some tips about new genoa sheets. Learn how to measure your sailboat for new genoa sheets and what diameter the genoa sheets should be. Understanding Sail Dimensions and Sail Area Calculation The required sail dimensions for calculating the area of any triangular sails are usually its height and the length of its foot. But that only works for mainsails and mizzens with no roach, and jibs with a 90 degree angle at the clew - and what about high-cut headsails, spinakers and cruising chutes? Genoa / Jib Measurements Genoa / Jib Measurements. First, take your headsail either laid out over a flat area, or raising the sail on the mast. Use a long tape measure and measure the (1) luff of the sail. This is the length of the front of the sail. Be sure you have the sail stretched out well to keep the measurement accurate. If you are using the mast, send the ... Genoa Size Matters The Genoa is roller furling and quite large for a 30' boat at 40' luff. 40' leach and 20'6" foot. It is too big to clear the lifelines and very slow to tack as crew has to lift the foot over the lifelines and it is a LOT to sheet in. It usually overloads the boat in all but the lightest winds. It CAN be reefed by furling but it looks like shit ... Jibs vs Genoas In an effort to standardize which size sail belongs in which category, we have broken down each as follows: #1 Genoa is 150%. #2 Genoa is 135%. #3 Jib is 115%. #4 Jib is 95%. Smaller jibs are much easier to handle and are especially popular if you are short on crew, besides being less expensive. Non-overlapping sails may also have a longer ... How Much Does A New Genoa Sail Cost? As touched on earlier, your sailboat's size will impact the cost of a new genoa sail. That's because larger boats need larger genoa sails if they are to sail properly and benefit from the genoa rig. Genoa sheet for a sailing boat 5 - Genoa sheet. Important rope characteristics for a genoa sheet are: low elongation, good grip, and flexibility. Grip end flexibility are particularly important for sailing yachts up to 36 ft, where there is still a lot of manual rope work. Larger sailing boats carry the genoa sheets on a winch and that makes that grip fibers are not important. PS37 genoa -- what size? Yesterday in 10-13 knot winds the boat was nicely balanced, but I started out in about 3-5 knots and a bigger genoa would have been nice to have. This boat was definitely designed for Force 4 (like most sailboats?); it's just perfect at those wind speeds -- such a pleasure. The boat sails itself. Reducing Genoa Size ... Reducing Genoa Size ... I'm in the process of getting quotes for replacing my sails. One sail maker suggested that I reduce sail area of my genoa from 150% to 135%. I can understand the pros and cons of reducing the area and it is probably beneficial for me as I intend to do a lot of solo cruising, but it almost feels wrong giving up a bit of ... Jib Overlap Calculator Not sure what size Jib or Genoa you currently have in your sail inventory? Input your existing sail measurements and "J" from your rig specs in the calculator below to discover your sail area and LP%. For proper use of the calculator input all measurements in meters. (Example: 12.5) catamaran gulet motorboat riverboat sailboat trimaran yacht