Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 28.16 ft / 8.58 m
LWL: 23.33 ft / 7.11 m
S.A. (reported): 298.00 ft² / 27.69 m²
Beam: 7.50 ft / 2.29 m
Displacement: 6,800.00 lb / 3,084 kg
Max Draft: 4.50 ft / 1.37 m
Construction: ALU multi-chine
Ballast Type: Iron
First Built: 1963
Builder: The Rainbow Company (USA)
Designer: Alan Gurney

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Sailboat Calculations

S.A. / Displ.: 13.33
Disp: / Len: 239.07
Comfort Ratio: 28.95
Capsize Screening Formula: 1.59
Hull Speed: 6.47 kn
Pounds/Inch Immersion: 625.20 pounds/inch

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Sailboat Links

Designers: Alan Gurney
Download Boat Record:


Besides the prototype, we know of two others that were built. We have heard there may have been six built.
Thanks to prototype owner Jeremiah Kane for updated info.
The Rainbow Co. was located in Schenectady, NY (USA).