Marieholm ms 20

The marieholm ms 20 is a 19.68ft fractional sloop designed by olle enderlein and built in fiberglass by marieholm boats (swe) since 1971., 750 units have been built..

The Marieholm ms 20 is a moderate weight sailboat which is slightly under powered. It is stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.

Marieholm ms 20 sailboat under sail

Marieholm ms 20 for sale elsewhere on the web:

marieholm 20 sailboat

Main features

Model Marieholm ms 20
Length 19.68 ft
Beam 7.22 ft
Draft 2.95 ft
Country Sweden (Europe)
Estimated price $ 0 ??

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marieholm 20 sailboat

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Sail area / displ. 14.85
Ballast / displ. 32 %
Displ. / length 240.95
Comfort ratio 17.03
Capsize 2.06
Hull type Monohull fin keel with rudder on skeg
Construction Fiberglass
Waterline length 17.22 ft
Maximum draft 2.95 ft
Displacement 2756 lbs
Ballast 882 lbs
Hull speed 5.56 knots

marieholm 20 sailboat

We help you build your own hydraulic steering system - Lecomble & Schmitt

Rigging Fractional Sloop
Sail area (100%) 182 sq.ft
Air draft 0 ft ??
Sail area fore 0 sq.ft ??
Sail area main 0 sq.ft ??
I 0 ft ??
J 0 ft ??
P 0 ft ??
E 0 ft ??
Nb engines 1
Total power 0 HP
Fuel capacity 0 gals

Accommodations

Water capacity 0 gals
Headroom 0 ft
Nb of cabins 0
Nb of berths 0
Nb heads 0

Builder data

Builder Marieholm Boats (SWE)
Designer Olle Enderlein
First built 1971
Last built 0 ??
Number built 750

Other photos

marieholm 20 sailboat

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  • Sailboat Guide

1975 Marieholm MS-20

  • Description

Seller's Description

The boat is a Marieholm MS-20.

I believe t was made in about 1975.

It has as inboard diesel engine about 10HP.

Set of cockpit cushions.

Cabin has cushions and a Porta Potti.

There is a fresh water tank with a sink.

Sail are in great condition.

A 135 genoa and a main with reef points.

The trailer is in very good condition.

It has a cutaway keel with a skeg.

An anchor locker with chain and rode.

Boat was recently rewired with LED lighting.

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)

A center cockpit/aft cabin version (AC-20) was introduced in 1975 (approx. 150 built). Still another version, the S-20, introduced in 1976 has a smaller cockpit and larger coach roof and no inboard motor.(approx. 150 built).

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Review of Marieholm S 20

Basic specs..

An outboard motor is often used on this boat. In that case the boat will typically require a power of 3 - 4 hp, alternatively 55 - 66 lbs thrust if you prefer an electrical motor. Electric outboards are becoming popular for sailboat owners who want clean instant power with less noise and no exhaust fumes.

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

What is Capsize Screening Formula (CSF)?

The capsize screening value for Marieholm S 20 is 2.11, indicating that this boat would not be accepted to participate in ocean races.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 5.6 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Marieholm S 20 is about 79 kg/cm, alternatively 447 lbs/inch. Meaning: if you load 79 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 447 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

What is Motion Comfort Ratio (MCR)?

What is L/B (Length Beam Ratio)?

What is Displacement Length Ratio?

What is SA/D (Sail Area Displacement ratio)?

What is Relative Speed Performance?

Maintenance

Are your sails worn out? You might find your next sail here: Sails for Sale

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

UsageLengthDiameter
Mainsail halyard 18.3 m(60.0 feet)6 mm(1/4 inch)
Jib/genoa halyard18.3 m(60.0 feet)6 mm(1/4 inch)
Spinnaker halyard18.3 m(60.0 feet)6 mm(1/4 inch)
Jib sheet 6.1 m(20.0 feet)8 mm(5/16 inch)
Genoa sheet6.1 m(20.0 feet)8 mm(5/16 inch)
Mainsheet 15.2 m(50.0 feet)8 mm(5/16 inch)
Spinnaker sheet13.4 m(44.0 feet)8 mm(5/16 inch)
Cunningham2.5 m(8.2 feet)6 mm(1/4 inch)
Kickingstrap5.0 m(16.4 feet)6 mm(1/4 inch)
Clew-outhaul5.0 m(16.4 feet)6 mm(1/4 inch)

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    Beam:  7'3'    Draft:  2'10'
    Beam:  7.22'    Draft:  2.95'

marieholm 20 sailboat

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COMMENTS

  1. MARIEHOLM MS-20 - sailboatdata

    Designed to determine if a boat has blue water capability. The CSF compares beam with displacement since excess beam contributes to capsize and heavy displacement reduces capsize vulnerability. The boat is better suited for ocean passages (vs coastal cruising) if the result of the calculation is 2.0 or less.

  2. Marieholm MS-20 — Sailboat Guide

    Marieholm MS-20 is a 19′ 8″ / 6 m monohull sailboat designed by Olle Enderlein and built by Marieholm Boats starting in 1971.

  3. Marieholm ms 20 - sailboat data sheet

    The Marieholm ms 20 is a 19.68ft fractional sloop designed by Olle Enderlein and built in fiberglass by Marieholm Boats (SWE) since 1971. 750 units have been built. The Marieholm ms 20 is a moderate weight sailboat which is slightly under powered.

  4. Marieholm Boats (SWE) | Sailboatdata.com

    Marieholm Boats (SWE) Mariehom Bruk (Mill), was originally a manufacturer of agricultural machinery. After a change of ownership in the late 1940's, it became a builder of small fiberglass power boats.

  5. Marieholm Boats — Builder — Sailboat Guide

    Mariehom Bruk (Mill), was originally a manufacturer of agricultural machinery. After a change of ownership in the late 1940’s, it became a builder of small fiberglass power boats. The first sailboat was the INTERNATIONAL FOLKBOAT in 1967. As a business, it ceased operations in 1986. At this time,...

  6. 1975 Marieholm MS-20 — For Sale — Sailboat Guide

    The boat is a Marieholm MS-20. I believe t was made in about 1975. It has as inboard diesel engine about 10HP. Set of cockpit cushions. Cabin has cushions and a Porta Potti. There is a fresh water tank with a sink. Sail are in great condition. A 135 genoa and a main with reef points. The trailer is in very good condition.

  7. Review of Marieholm S 20 - www.yachtdatabase.com

    The Marieholm S 20 is a small sailboat designed by the maritime architect Olle Enderlein in the mid seventies. A few hundred boats have been produced. The Marieholm S 20 is built by the Swedish yard Marieholms.

  8. Marieholm sailboats for sale by owner. - Sailboat Listings

    20' Beam: 7.22' Draft: 2.95' Year: 1976: Type: cruiser: Hull: fiberglass monohull: Engine: 1 diesel inboard; Location: Loveland, Colorado; Asking: $5,000

  9. Marieholm boats for sale | YachtWorld

    Find Marieholm boats for sale in your area & across the world on YachtWorld. Offering the best selection of Marieholm boats to choose from.

  10. Motor sailboats Marieholm 20 for sale - Daily Boats

    Discover an extensive range of motor sailboats Marieholm 20 for sale in your area, explore detailed information, photographs, pricing, and pinpoint your next boat on DailyBoats.com