Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin Keel
Rigging Type: Masthead Sloop
LOA: 7.37 m
LWL: 5.26 m
Beam: 1.91 m
Displacement: 1,021 kg
Ballast: 508 kg
Max Draft: 1.07 m
Construction: FG
First Built: 1962
Builder: Tidewater Boats (USA)
Designer: Sparkman & Stephens

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

Bal. / Displ.: 49.78
Disp: / Len: 195.69
Comfort Ratio: 15.65
Capsize Screening Formula: 1.91
S#: 3.10
Hull Speed: 5.57 kn
Pounds/Inch Immersion: 385.23 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 7.32 m
J: 2.68 m
P: 6.61 m
E: 3.05 m
S.A. Fore: 9.81 m²
S.A. Main: 10.08 m²
S.A. Total (100% Fore + Main Triangles): 19.89 m²
S.A./Displ. (calc.): 20.00
Est. Forestay Length: 7.79 m

Sailboat Links

Designers: Sparkman & Stephens
Builders: Tidewater Boats (USA)
Related Sailboats: RAINBOW 24
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The KNOCKABOUT 24 is a version of the RAINBOW 24 (but without the cuddy/cabin,) originally built for the Annapolis Sailing School. The KNOCKABOUT was used for some years as a trainer for the US Naval Academy.