Beta Marine

Sailboat Specifications

Hull Type: Long keel w/trans. hung rudder
Rigging Type: Masthead Sloop
LOA: 8.61 m
LWL: 6.55 m
S.A. (reported): 32.33 m²
Beam: 2.46 m
Displacement: 4,521 kg
Ballast: 2,099 kg
Max Draft: 1.52 m
Construction: FG or Wood
First Built: 1964
Last Built: 1983
# Built: 200
Builder: Uphams/Tyler (UK)
Designer: Kim Holman

Sailboat Calculations

S.A. / Displ.: 12.06
Bal. / Displ.: 46.43
Disp: / Len: 447.76
Comfort Ratio: 40.49
Capsize Screening Formula: 1.50
S#: 0.69
Hull Speed: 6.21 kn
Pounds/Inch Immersion: 620.72 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 10.36 m
J: 3.35 m
P: 9.14 m
E: 3.28 m
S.A. Fore: 17.37 m²
S.A. Main: 14.98 m²
S.A. Total (100% Fore + Main Triangles): 32.35 m²
S.A./Displ. (calc.): 12.07
Est. Forestay Length: 10.89 m

Sailboat Links


First available in wood, then with FG hulls with wood coachroof and deck. By 1970, an all glass version was available. It is thought that the glass boats were molded by Tyler Boat Co. Ltd. and finished and fitted out by other yards.