Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin Keel
Rigging Type: Masthead Sloop
LOA: 34.75 ft
LWL: 25.00 ft
Beam: 9.58 ft
Displacement: 16,500.00 lb
Max Draft: 4.65 ft
Construction: FG hull/wood deck and cabin
First Built: 1961
Last Built: 1963
Builder: Seamaster Ltd. (UK)
Designer: Alan Buchanan

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Fuel: 10 gals


Water: 44 gals

Sailboat Calculations

Disp: / Len: 471.43
Comfort Ratio: 45.02
Capsize Screening Formula: 1.51
Hull Speed: 6.70 kn
Pounds/Inch Immersion: 855.76 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Designers: Alan Buchanan
Builders: Seamaster Ltd. (UK)
Stebbings & Sons (UK)
Download Boat Record:


One of the earliest fiberglass boats of this size built in the UK. Hulls molded by Seamaster and finished by Stebbings, with a traditional wood deck and interior.