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Sailboat Specifications

Nelson Marek 50

Masthead Sloop · Monohull

Designed by Nelson/Marek · Built by Kiwi Yachts (Custom) · First built 1987

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LOA 50.0  ·  Beam 13.0  ·  Displacement 22,000  ·  Sail Area 1100  ·  Masthead Sloop  ·  Monohull
About the Nelson Marek 50 Sailboat

The Nelson/Marek 50 is a custom IOR-era racing yacht designed by Bruce Nelson and Bruce Marek of Nelson/Marek Yacht Design and built as a one-off by Kiwi Yachts in the late 1980s. Conceived for the IOR 50 grand-prix racing class, the 50 features a deep fin keel, wide planing-shape hull, and high-aspect masthead sloop rig. Bruce Nelson and Bruce Marek established Nelson/Marek in 1979 in San Diego and built a reputation for race-winning offshore designs through the IOR and into the IMS era. Surviving Nelson/Marek 50s remain competitive in PHRF and ORR fleets.

Dimensions & Specifications
LOA (Length Overall) 50.0
LWL (Waterline Length) 41.0
Beam 13.0
Max Draft 8.5
Displacement 22,000
Ballast 9,000
Sail Area (Reported) 1100
Design & Construction
Hull Type Monohull
Rigging Type Masthead Sloop
Construction Fiberglass
Designer Nelson/Marek
Builder Kiwi Yachts (custom)
First Built 1987
Last Built 1995
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Frequently Asked Questions

What is the Nelson Marek 50's sail area to displacement ratio?

The Nelson Marek 50 has a Sail Area to Displacement ratio (SA/D) of 22.42. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Nelson Marek 50's comfort ratio?

The Nelson Marek 50 has a Ted Brewer Comfort Ratio of 25.36. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Nelson Marek 50 safe for offshore sailing?

The Nelson Marek 50 has a Capsize Screening Formula value of 1.86. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Nelson Marek 50?

The theoretical hull speed of the Nelson Marek 50 is 8.58 knots, calculated from its waterline length.

How much does a Nelson Marek 50 weigh?

The Nelson Marek 50 has a displacement of 22,000 and a length overall (LOA) of 50.0.

Who designed the Nelson Marek 50?

The Nelson Marek 50 was designed by Nelson/Marek, first built in 1987.