Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Twin Keel
Rigging Type: Masthead Sloop
LOA: 6.10 m
LWL: 5.33 m
S.A. (reported): 16.26 m²
Beam: 2.13 m
Displacement: 816 kg
Ballast: 308 kg
Max Draft: 0.71 m
Construction: FG
Ballast Type: Lead
First Built: 1963
Builder: Russel Marine Ltd. (UK)
Designer: Peter Stevenson/D.C. Pollard

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Sailboat Calculations

S.A. / Displ.: 18.96
Bal. / Displ.: 37.78
Disp: / Len: 149.94
Comfort Ratio: 11.41
Capsize Screening Formula: 2.30
S#: 3.49
Hull Speed: 5.61 kn
Pounds/Inch Immersion: 437.71 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 7.11 m
J: 1.80 m
P: 6.30 m
E: 2.82 m
S.A. Fore: 6.39 m²
S.A. Main: 8.88 m²
S.A. Total (100% Fore + Main Triangles): 15.28 m²
S.A./Displ. (calc.): 17.82
Est. Forestay Length: 7.33 m

Sailboat Links

Builders: Russell Marine Ltd.
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The VIVACITY 20 is a redesigned (lengthened) version of the ALACRITY 19.
A fin keel version was also available.