Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Fractional Sloop
LOA: 7.26 m
LWL: 5.97 m
S.A. (reported): 21.83 m²
Beam: 2.54 m
Displacement: 1,220 kg
Ballast: 490 kg
Max Draft: 1.42 m
Construction: FG
First Built: 1976
# Built: 40
Builder: Alpha Marine (NZ)
Designer: Bruce Farr

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Sailboat Calculations

Definitions
S.A. / Displ.: 19.49
Bal. / Displ.: 40.15
Disp: / Len: 159.98
Comfort Ratio: 11.84
Capsize Screening Formula: 2.40
S#: 3.56
Hull Speed: 5.93 kn
Pounds/Inch Immersion: 582.78 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

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I: 7.44 m
J: 2.38 m
P: 7.83 m
E: 3.32 m
S.A. Fore: 8.84 m²
S.A. Main: 13.01 m²
S.A. Total (100% Fore + Main Triangles): 21.85 m²
S.A./Displ. (calc.): 19.51
Est. Forestay Length: 7.81 m

Sailboat Links

Designers: Bruce Farr
Builders: Hughes Boat Works
Mallard (Chantier Mallard)
Associations: Quarter Ton Class
Download Boat Record:

Notes

Prototype was winner of the Int. 1/4 ton cup(1975).
Boats built by Northstar Yachts of Canada, were called the NORTHSTAR 727.