Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 7.32 m
LWL: 5.94 m
S.A. (reported): 22.85 m²
Beam: 2.44 m
Displacement: 1,451 kg
Ballast: 748 kg
Max Draft: 1.22 m
Construction: FG
Ballast Type: Lead
First Built: 1973
# Built: 1200
Builder: Clark Boat Co. (USA)
Designer: Bruce Kirby

Sailboat Calculations

Definitions
S.A. / Displ.: 18.17
Bal. / Displ.: 51.56
Disp: / Len: 192.66
Comfort Ratio: 14.86
Capsize Screening Formula: 2.17
S#: 2.94
Hull Speed: 5.92 kn
Pounds/Inch Immersion: 557.41 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 9.14 m
J: 2.90 m
P: 7.92 m
E: 2.44 m
S.A. Fore: 13.24 m²
S.A. Main: 9.66 m²
S.A. Total (100% Fore + Main Triangles): 22.90 m²
S.A./Displ. (calc.): 18.21
Est. Forestay Length: 9.59 m

Sailboat Links

Designers: Bruce Kirby
Builders: Clark Boat Company
Associations: Quarter Ton Class
Download Boat Record:

Notes

From IOR 1/4 ton prototype.