sailboatdata j 22

The J22 is a 22.5ft fractional sloop designed by Johnstone and built in fiberglass by J Boats since 1983.

The J22 is a light sailboat which is a very high performer. It is stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.

J22 for sale elsewhere on the web:

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J/22 is a 22 ′ 6 ″ / 6.9 m monohull sailboat designed by Rod Johnstone and built by J Boats and Waterline Systems, LLC starting in 1983.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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Sailboat specifications

• Last update: 13rd March 2020

J/22's main features

J/22's main dimensions, j/22's rig and sails, j/22's performances, j/22's auxiliary engine, j/22's accommodations and layout.

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WIN WITH NORTH J/22 SAILS

North Sails is the premier sailmaker for the J/22 class, renowned for producing championship-winning sails around the world. Our sails are meticulously crafted using state-of-the-art materials and cutting-edge design techniques, ensuring optimal performance on the racecourse. Whether you're a seasoned racer or a passionate J/22 enthusiast, North Sails has the knowledge and expertise to help you achieve your racing goals. Our sails are tested rigorously and refined to perfection, giving you the confidence to excel in the demanding conditions of J/22 racing.

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Line Lengths

J/22 Line Lengths:

Main Halyard 6mm 62′

Jib Halyard 6mm 55′

Topping Lift 6mm 42′

Foreguy 6mm 14′

Spinn. Sheets 8mm 2-50′

Vang 4mm 15′

Vang 4mm 22′

Jib Sheet 8mm 30′

Mainsheet 8mm 55′

Spin. Halyard 6mm 60′

Twings 4mm 2-20′

Traveler 4mm 30′

Backstay 6mm 34′

Cunningham 3mm  8′

Outhaul 3mm 25′

Measurement Info

International j/22 class rule excerpt:.

2.9 MEASUREMENT – “A yacht shall only be measured by a measurer recognized by his National Sailing Authority and the International J/22 Class Association. A yacht shall not be recognized as a J/22 until its official measurement certificate is registered with the IJ22CA”

To Obtain a Measurement Certificate

New Boat –  It comes with the Measurement Certificate partially completed by Builder.

Used Boat  – Change of ownership invalidates the Measurement Certificate and the new owner should in his/her interest advise his/her Class Office. A measurer in your district will contact you. If the previous owner has a valid Measurement Certificate, and you have not make ANY alteration to your J/22, submit to the measurer the information required in Part A of the Measurement Certificate together with the previous owner’s Certificate. Otherwise, make arrangement with your Measurer to have your J/22 re-measured.

Questions about Class Rule? Propose a Rule Change?

Please direct any questions regarding class rule to the  USA J/22 Technical Committee Chairman .

The process of changing a rule mandated by our Constitution is intentionally quite lengthy. Requests are vetted to a NJCA’s Class Measurer or the Technical Committee Chairman, then to their Executive Committee before being forwarded to the International Technical Committee (ITC). The ITC reviews the proposed change and submits it along with their recommendation to the World Council. If the Council adopts a rule change it must then be submitted to ISAF for review by their Technical Committee, acceptance by their Keelboat Committee and finally by their Council. Any changes approved by ISAF then become effective March 1 of the following year.

Our constitution states that “Except in case of emergency, Class Rules changes shall occur every two years”.

Class Scale

Our Class presently owns 2 scales. One has been refurbished and the display is LED. We bought another Scale with a LCD display in 2001. Our Chief Measurer Tom Linville keeps track of the two Class Scale. Should any measurer need to use the Scales, please coordinate with Tom. Our rule is COD. Receiver pays the shipping. The SW District owns one addition Scale which they bought earlier in 2001 also.

Class Rules Frequently Asked Questions

Class Rules FAQ (PDF)

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FEIG ELECTRONIC: Moscow-City Skyscrapers Streamline Parking Access and Control with Secure RFID

Feig electronic partners with isbc group to deploy ucode dna rfid security and parking access control solution in moscow business district.

Weilburg, Germany  — December 3,  2019  —  FEIG ELECTRONIC , a leading global supplier of radio frequency identification (RFID) readers and antennas with fifty years of industry experience, announces deployment of the UCODE DNA RFID security and parking contactless identification solution in the Moscow International Business Center, known as Moscow-City, one of the world’s largest business district projects.

The management of Moscow-City not only selected long-range, passive UHF RFID to implement in its controlled parking areas, it also chose to implement UCODE DNA , the highest form of secure RAIN RFID technology, developed by NXP Semiconductors.

Panoramic view of Moscow city and Moskva River at sunset. New modern futuristic skyscrapers of Moscow-City – International Business Center, toned

“Underscoring NXP’s innovation and leadership in developing advanced RAIN RFID technologies, our UCODE DNA was chosen to be incorporated with the FEIG and ISBC implementation of the contactless identification system in the prestigious Moscow-City,” said Mahdi Mekic, marketing director for RAIN RFID with NXP Semiconductors. “This exciting project represents yet another successful deployment of NXP’s contactless portfolio, and showcases our continued ability to meet the high-security requirements of highly demanding applications without compromising user convenience.”

“UCODE DNA is considered the only identification technology to match the physical protection of a barrier with the cybersecurity necessary to truly protect entrances from unauthorized access,” said Manuel Haertlé, senior product manager for FEIG Electronic. “As a respected contactless payment technology company, FEIG applies security know-how from its payment terminals, which are fully certified according to the latest high-class security standards, into our RFID systems. FEIG vehicle access control RFID readers incorporate advanced secure key storage elements, supporting various methods for secure key injection.”

FEIG’s partner ISBC Group provided the knowledge and support for this successful implementation using  FEIG’s long-range UHF RFID . The resulting system enables authorized vehicle entry into areas reserved for private residential use or corporate tenants, while also allowing availability of temporary, fee-based visitor parking. Thanks to the cryptographic authentication of UCODE DNA, both the tag and reader must go through an authentication procedure before the reader will validate the data from the tag, which is transmitted wirelessly. This level of authentication is typically used in the most secure data communication networks.

“The system’s two-step authentication means that only authorized equipment can handle the secure protocol and the data exchange with the UCODE DNA based tag. Without the required cryptographic secrets, other readers would query the tag in vain, because the tag’s response cannot be interpreted or understood,” said Andrey Krasovskiy, director of the RFID department at ISBC Group. “On top of this, each data exchange in the authentication process is unique, so even if a malicious actor were to intercept the communication, the transmission is only good for a single exchange and the tag’s unique identity is protected from cloning.”

Established in 1992 and still growing, Moscow-City is the revitalization and transformation of an industrial riverfront into a new, modern, vibrant and upscale business and residential district. A mix of residential, hotel, office, retail and entertainment facilities, it is located about four kilometers west of Red Square along the Moscow River. Twelve of the twenty-three planned facilities have already been completed, with seven currently under construction. Six skyscrapers in Moscow-City reach a height of at least 300 meters, including Europe’s tallest building, Federation Tower, which rises more than 100 stories.

Partnering with ISBC and deploying FEIG Electronic RFID solutions, the Moscow International Business Center is delivering security and access control to its city center today, as it grows into the city of tomorrow.

About FEIG ELECTRONIC

FEIG ELECTRONIC GmbH, a leading global supplier of RFID readers and antennas is one of the few suppliers worldwide offering RFID readers and antennas for all standard operating frequencies: LF (125 kHz), HF (13.56 MHz), UHF (860-960 MHz). A trusted pioneer in RFID with more than 50 years of industry experience, FEIG ELECTRONIC delivers unrivaled data collection, authentication, and identification solutions, as well as secure contactless payment systems. Readers from FEIG ELECTRONIC, which are available for plug-in, desktop, and handheld applications, support next-generation contactless credit cards, debit cards, smart cards, NFC and access control credentials to enable fast, accurate, reliable and secure transactions. For more information, visit:  www.feig.de/en

Founded in Moscow in 2002, ISBC Group provides knowledge and support to integrators for their successful implementation of RFID and smart card-based solutions. The company specializes in the distribution of smart card equipment, contact and contactless card manufacturing, smart card and RFID personalization services, and information security.  Its Research and Design Center is focused specifically on RFID, primarily HF and UHF solutions with NXP tags, and software development for the smart card industry. For more information visit:  https://isbc-cards.com/

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What to know about R.J. Davis, North Carolina's senior star and ACC player of the year

R.J. Davis and the North Carolina Tar Heels came up short in the ACC championship game , but they will have a chance to run it back during the NCAA Tournament .

Davis led all scorers with 30 points, six rebounds, five assists and two steals in Saturday's matchup against the North Carolina State Wolfpack , but it was not enough. The Tar Heels, who trailed by as many as 12 points in the second half, lost 84-76.

Despite the loss, Davis still managed to rewrite the record books. He went 4-of-13 from the 3-point line to pass Justin Jackson (105) for most three-pointers made in North Carolina single-season history with 106. Davis has piled up accolades during his stellar senior season and is a player to watch in March Madness .

Here is what you need to know about North Carolina star R.J. Davis:

Who is R.J. Davis?

Davis, 22, is a senior guard at North Carolina.

IT'S BRACKET MADNESS: Enter USA TODAY's NCAA tournament bracket contest for a chance at $1 million prize.

R.J. Davis high school

Davis is a New York native that played basketball at Archbishop Stepinac High School in White Plains, New York. He averaged 26.5 points, eight rebounds, 5.3 assists and 2.1 steals per game during his senior year and was named a 2020 McDonald's All-American, in addition to Mr. New York Basketball.

Davis was a four-star recruit coming out of high school and he was ranked No. 43 in ESPN's Class of 2020 . He committed to the Tar Heels over offers from Georgetown, Marquette and Pittsburgh.

R.J. Davis stats

During his senior year, Davis averaged a career-high 21.1 points, 3.7 rebounds, 3.5 assists and 1.2 steals per game, while shooting 43.3% from the field and 41.1% on 3-pointers. Davis' 21.1 points per game leads the ACC this year.

R.J. Davis awards

Davis was named the 2024 ACC Men’s Player of the Year in overwhelming fashion. Davis was also named to the 2024 First-team All-ACC team. 

North Carolina coach Hubert Davis won ACC Coach of the Year, marking the first time the Tar Heels won both the conference's player and coach of the year award in the same season since former star forward Antawn Jamison and former coach Bill Guthridge in 1998.

Will R.J. Davis declare for NBA draft?

Davis has not declared for the NBA draft and has an extra year of eligibility due to the COVID-19 pandemic impacting his freshman year of 2020-21 season.

North Carolina's next game in NCAA Tournament

Davis and the Tar Heels earned the West Region's No. 1 seed, and they will play the winner of the Howard-Wagner First Four game on Thursday, March 21 at Spectrum Center in Charlotte, N.C. The winner of that game will take on the winner of No. 8 Mississippi State and No. 9 Michigan State.

Columbia University in the City of New York

Miriam and ira d. wallach art gallery.

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Moscow: City, Spectacle, Capital of Photography

April 30–june 21, 2003.

Moscow: City, Spectacle, Capital of Photography , an exhibition of 20th-century photographs of Moscow, opens at Columbia University's Miriam and Ira D. Wallach Art Gallery on Wednesday, April 30, 2003 and remains on display through Saturday, June 21, 2003.

Moscow has been a powerful magnet for many Russian photographers of the 20th century. Moscow: City, Spectacle, Capital of Photography presents the work of 31 photographers, whose images have defined the visual experience of Moscow from the 1920s to the present. Diverse in form and strategy, the 90 photographs chosen for the exhibition trace the history of Russian documentary photography and offer insight into individual practices. From Aleksandr Rodchenko's constructivist visions and Evgenii Khaldei's humanist landscapes to Igor Moukhin's scenes of urban spectacle and alienation in the works of Russia's key 20th-century photographers, Moscow ventures beyond the expected image as a site of famous landmarks, architectural treasures and dramatic lifestyles.

Early 20th-century photographers Boris Ignatovich and Arkadii Shaikhet saw themselves in the vanguard of an emerging mass-media culture, defining with their cameras the visual experience of Soviet modernity. For nearly 70 years, Soviet photography was assigned the duty of maintaining the ideological rigidity of the Soviet State. Yet, as examples of the work of Iakov Khalip, Anatolii Egorov, Mikhail Savin, and Mark Markov-Grinberg show, Soviet photographic practices were much more complex than has been previously acknowledged. The works of these photographers remain intensely compelling to a modernist eye.

Contemporary Russian photographers, such as Lev Melikhov, Valerii Stigneev and Sergei Leontiev, engage with the legacy of the Soviet documentary photography. But for them the documentary is a complex and multivalent genre, which incorporates subjectivity, ambiguity and reflexivity and comments on social and cultural issues without losing sight of the position from which that commentary is made. In the recent photographs by Vladimir Kupriyanov, Igor Moukhin, Anna Gorunova and Pakito Infante, the "real" space of Moscow is replaced by an imaginary and optical spaces of virtuality.

The works in the exhibition are on loan from Moscow's Cultural Center Dom, and many are being shown outside Russia for the first time. In conjunction with the exhibition, the Wallach Art Gallery is publishing an illustrated catalogue with a scholarly essay by the exhibition curator, Nadia Michoustina, a Ph.D. candidate in Columbia University's Department of Slavic Languages. The essay presents a nuanced history of Russian photography of the 20th century, and contributes to an interpretation of extraordinary images.