Beta Marine

Sailboat Specifications

Hull Type: Long keel w/trans. hung rudder
Rigging Type: Gaffhead Sloop
LOA: 20.75 ft / 6.32 m
LWL: 16.00 ft / 4.88 m
S.A. (reported): 270.00 ft² / 25.08 m²
Beam: 7.08 ft / 2.16 m
Displacement: 3,250.00 lb / 1,474 kg
Max Draft: 3.08 ft / 0.94 m
Construction: Wood
First Built: 1916
Last Built: 1930
# Built: 48
Builder: Herreshoff Manufacturing Co. (USA)
Designer: Herreshoff

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Sailboat Calculations

S.A. / Displ.: 19.74
Disp: / Len: 354.22
Comfort Ratio: 21.24
Capsize Screening Formula: 1.91
Hull Speed: 5.36 kn
Pounds/Inch Immersion: 404.76 pounds/inch

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Sailboat Links

Designers: Nathaniel G. Herreshoff
Builders: Herreshoff Mfg. Co.
Download Boat Record:


Commissioned by Seawanhaka Corinthian YC, (Long Island, NY) for one-design racing and delivered beginning in 1916. More were built by Herreshoff until the late 1920's.
Over the years, a number of reproductions have been built based on this original design. The drawing here shows the 'marconi' sloop version adopted in the 1930's.