Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/transom hung rudder
Rigging Type: Fractional Sloop
LOA: 25.00 ft
LWL: 20.58 ft
S.A. (reported): 273.00 ft²
Beam: 8.40 ft
Displacement: 3,600.00 lb
Ballast: 850.00 lb
Max Draft: 4.60 ft
Construction: FG
First Built: 1974
Builder: Thorkild Lind
Designer: Thorkild Lind

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Sailboat Calculations

S.A. / Displ.: 18.65
Bal. / Displ.: 23.61
Disp: / Len: 184.38
Comfort Ratio: 14.91
Capsize Screening Formula: 2.20
S#: 3.10
Hull Speed: 6.08 kn
Pounds/Inch Immersion: 617.69 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 32.50 ft
J: 8.50 ft
P: 28.30 ft
E: 9.50 ft
S.A. Fore: 138.13 ft²
S.A. Main: 134.43 ft²
S.A. Total (100% Fore + Main Triangles): 272.56 ft²
S.A./Displ. (calc.): 18.62
Est. Forestay Length: 33.59 ft

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Variation of the Nordic Folkboat but with a separate fin keel. Thorkild Lind was a well known boat builder. His own 'Tibbe' was used to create a mold from which a number of glassfibre Nordic Folkboats were built.
Shoal Draft vers. draws 4.2'.