Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/transom hung rudder
Rigging Type: Masthead Sloop
LOA: 7.37 m
LWL: 6.40 m
S.A. (reported): 23.78 m²
Beam: 2.44 m
Displacement: 1,814 kg
Ballast: 907 kg
Max Draft: 1.22 m
Construction: FG
First Built: 1971
Last Built: 1972
# Built: 238
Builder: Jensen Marine (USA)
Designer: C. William Lapworth

Sailboat Calculations

Definitions
S.A. / Displ.: 16.30
Bal. / Displ.: 50.00
Disp: / Len: 192.82
Comfort Ratio: 17.64
Capsize Screening Formula: 2.02
S#: 2.71
Hull Speed: 6.14 kn
Pounds/Inch Immersion: 600.28 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 9.14 m
J: 3.05 m
P: 7.19 m
E: 2.74 m
S.A. Fore: 13.94 m²
S.A. Main: 9.87 m²
S.A. Total (100% Fore + Main Triangles): 23.80 m²
S.A./Displ. (calc.): 16.31
Est. Forestay Length: 9.64 m

Sailboat Links

Designers: C. William Lapworth
Builders: Jensen Marine/Cal Boats
Associations: Quarter Ton Class
Download Boat Record:

Notes

Designed as IOR 1/4 ton.