Beta Marine

Sailboat Specifications

Hull Type: Centerboard Dinghy
Rigging Type: Fractional Sloop
LOA: 15.50 ft / 4.72 m
LWL: 14.33 ft / 4.37 m
S.A. (reported): 108.00 ft² / 10.03 m²
Beam: 4.50 ft / 1.37 m
Displacement: 175.00 lb / 79 kg
Max Draft: 3.00 ft / 0.91 m
Min Draft: 0.42 ft / 0.13 m
Construction: FG
First Built: 1969
Builder: MFG Boats (USA)
Designer: J. R. Macalpine-Downie/Dick Gibbs

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Sailboat Calculations

S.A. / Displ.: 55.27
Disp: / Len: 26.55
Comfort Ratio: 2.48
Capsize Screening Formula: 3.22
Hull Speed: 5.07 kn
Pounds/Inch Immersion: 230.41 pounds/inch

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Sailboat Links

Designers: Dick Gibbs
J.R. (Rod) Macalpine-Downie
Builders: MFG Boat Company (USA)
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The SIDEWINDER was the company's most successful sailboat model. The design has an interesting feature that allows the pivot point for the centerboard to be adjusted fore and aft for sailing under the sloop or cat rig.