Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 7.24 m
LWL: 5.94 m
S.A. (reported): 19.51 m²
Beam: 2.16 m
Displacement: 1,179 kg
Ballast: 596 kg
Max Draft: 1.14 m
Construction: FG
First Built: 1968
Last Built: 1985
# Built: 600
Builder: Butler Moldings Ltd. (UK)
Designer: Oliver Lee /Chris Butler

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Sailboat Calculations

S.A. / Displ.: 17.81
Bal. / Displ.: 50.54
Disp: / Len: 156.54
Comfort Ratio: 14.23
Capsize Screening Formula: 2.06
S#: 3.39
Hull Speed: 5.92 kn
Pounds/Inch Immersion: 494.00 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 7.85 m
J: 2.34 m
P: 6.78 m
E: 3.05 m
S.A. Fore: 9.17 m²
S.A. Main: 10.34 m²
S.A. Total (100% Fore + Main Triangles): 19.51 m²
S.A./Displ. (calc.): 17.81
Est. Forestay Length: 8.19 m

Sailboat Links

Designers: Oliver Lee
Builders: Butler Mouldings Ltd. (UK)
Associations: Achilles Yachts Owners Assoc.
Related Sailboats: AJAX (LEE)
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Based on the AJAX (open cockpit day boat) and modified by the builder, Chris Butler.
Fin keel version - draft: 3.75'.
Triple keel - draft: 3.51'.