Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 31.00 ft
LWL: 22.00 ft
Beam: 9.25 ft
Displacement: 8,500.00 lb
Ballast: 3,500.00 lb
Max Draft: 5.00 ft
Construction: FG
First Built: 1968
Builder: UK
Designer: Guy Thompson

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

Bal. / Displ.: 41.18
Disp: / Len: 356.37
Comfort Ratio: 27.47
Capsize Screening Formula: 1.82
Hull Speed: 6.29 kn
Pounds/Inch Immersion: 727.13 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Designers: Guy Thompson
Associations: Half Ton Class
Download Boat Record:


Based on 'Willawaw' (1968), owned by Dick Pitcher, and the first English designed and built half tonner.