Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 35.40 ft
LWL: 28.50 ft
S.A. (reported): 597.00 ft²
Beam: 11.25 ft
Displacement: 13,200.00 lb
Ballast: 6,500.00 lb
Max Draft: 6.25 ft
Construction: FG
Ballast Type: Lead
First Built: 1973
# Built: 35
Builder: Cooper Boatworks Ltd./Martin Yachts(CAN)
Designer: Doug Peterson

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Farymann
Model: A30M
Type: Diesel
HP: 12
Fuel: 20 gals


Water: 24 gals

Sailboat Calculations

S.A. / Displ.: 17.16
Bal. / Displ.: 49.24
Disp: / Len: 254.56
Comfort Ratio: 26.57
Capsize Screening Formula: 1.91
S#: 2.15
Hull Speed: 7.15 kn
Pounds/Inch Immersion: 1,145.63 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 47.00 ft
J: 15.30 ft
P: 42.00 ft
E: 11.30 ft
S.A. Fore: 359.55 ft²
S.A. Main: 237.30 ft²
S.A. Total (100% Fore + Main Triangles): 596.85 ft²
S.A./Displ. (calc.): 17.16
Est. Forestay Length: 49.43 ft
Mast Height from DWL: 50.00 ft

Sailboat Links

Designers: Doug Peterson
Builders: Cooper Enterprises Inc. (CAN)
Martin Yachts Ltd. (CAN)
Associations: One Ton Class
Download Boat Record:


Production version of the 1 ton cup racer (1973) of the same name.
(DP #11?) Photo of orig. 'Ganbare' shown
Thanks to 'SPB' for providing corrections.