Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Long keel w/trans. hung rudder
Rigging Type: Masthead Sloop
LOA: 9.42 m
LWL: 7.29 m
Beam: 3.18 m
Displacement: 5,171 kg
Ballast: 2,041 kg
Max Draft: 1.50 m
Construction: FG
First Built: 1977
Last Built: 1982
Designer: Bruce King

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Type: Diesel
HP: 16
Fuel: 132 L


Water: 170 L
Headroom: 1.85 m

Sailboat Calculations

Bal. / Displ.: 39.47
Disp: / Len: 371.85
Comfort Ratio: 29.85
Capsize Screening Formula: 1.86
S#: 1.13
Hull Speed: 6.55 kn
Pounds/Inch Immersion: 890.58 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 11.67 m
J: 3.93 m
P: 9.91 m
E: 3.93 m
S.A. Fore: 22.95 m²
S.A. Main: 19.48 m²
S.A. Total (100% Fore + Main Triangles): 42.43 m²
S.A./Displ. (calc.): 14.48
Est. Forestay Length: 12.32 m

Sailboat Links

Designers: Bruce King
Related Sailboats: ERICSON 31 INDEPENDENCE
Download Boat Record:


Also known as the ERICSON 31 INDEPENDENCE and LIBERTY 31 built by Squadron Yachts (USA).
Also available with a cutter rig. J = 15ft.