Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Keel/Cbrd.
Rigging Type: Fractional Sloop
LOA: 7.75 m
LWL: 6.61 m
S.A. (reported): 25.73 m²
Beam: 2.36 m
Displacement: 1,588 kg
Ballast: 499 kg
Max Draft: 1.30 m
Min Draft: 0.71 m
Construction: wood strip/FG
First Built: 1954
# Built: 125
Builder: Mount Desert Yachts/Sailstar Boats (USA)
Designer: Cyrus Hamlin, Farham Butler

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Sailboat Calculations

Definitions
S.A. / Displ.: 19.28
Bal. / Displ.: 31.43
Disp: / Len: 153.55
Comfort Ratio: 15.51
Capsize Screening Formula: 2.04
S#: 3.63
Hull Speed: 6.24 kn
Pounds/Inch Immersion: 600.08 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 7.32 m
J: 2.90 m
P: 8.15 m
E: 3.71 m
S.A. Fore: 10.59 m²
S.A. Main: 15.12 m²
S.A. Total (100% Fore + Main Triangles): 25.71 m²
S.A./Displ. (calc.): 19.26
Est. Forestay Length: 7.87 m

Notes

One of the earliest trailerable cruising sailboats of this size built in America. Also built by Burr Bros. Boats, Inc. Some built in Finland.
Reportedly, a mold was made and few were built in fiberglass by Sailstar Boats. (Advertised in 1965)
A curious aside: Charles Angle, designer and early promoter of 'trailer sailing', is recorded as being the purchaser of Hull #1, (1954).
Masthead rig:
I: 30.0'
J: 9.5'
P: 26.0'
E: 12.0'
Sailstar FG boats were advertised as being significantly heavier (4000 lbs./1814 kgs).