Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Fractional Sloop
LOA: 39.42 ft / 12.02 m
LWL: 32.42 ft / 9.88 m
S.A. (reported): 820.00 ft² / 76.18 m²
Beam: 12.42 ft / 3.79 m
Displacement: 12,700.00 lb / 5,761 kg
Ballast: 6,000.00 lb / 2,722 kg
Max Draft: 6.67 ft / 2.03 m
Construction: FG
First Built: 1983
# Built: 2
Builder: Dencho Marine (USA)
Designer: Alan Andrews

Sailboat Calculations

Definitions
S.A. / Displ.: 24.19
Bal. / Displ.: 47.24
Disp: / Len: 166.39
Comfort Ratio: 19.84
Capsize Screening Formula: 2.13
S#: 4.01
Hull Speed: 7.63 kn
Pounds/Inch Immersion: 1,438.74 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 47.90 ft / 14.60 m
J: 13.83 ft / 4.22 m
P: 52.16 ft / 15.90 m
E: 18.73 ft / 5.71 m
S.A. Fore: 331.23 ft² / 30.77 m²
S.A. Main: 488.48 ft² / 45.38 m²
S.A. Total (100% Fore + Main Triangles): 819.71 ft² / 76.15 m²
S.A./Displ. (calc.): 24.18
Est. Forestay Length: 49.86 ft / 15.20 m

Sailboat Links

Designers: Alan Andrews
Builders: Dencho Marine
Download Boat Record:

Notes

Prototype was 'Allegiance', 1st in class and 2nd over all at the 1984 SORC. Tooling was created for production but only one additional boat was built.
Thanks to 'SPB' for providing additional information.