Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Ketch
LOA: 13.41 m
LWL: 10.36 m
S.A. (reported): 83.89 m²
Beam: 4.27 m
Displacement: 15,876 kg
Ballast: 5,443 kg
Max Draft: 1.55 m
Construction: FG
First Built: 1981
Last Built: 1985
# Built: 22
Builder: Stamas Yachts Inc. (USA)
Designer: Robert K. Johnson

Auxiliary Power/Tanks (orig. equip.)

Make: Perkins
Model: 4-154
Type: Diesel
HP: 62
Fuel: 644 L

Accomodations

Water: 1,166 L

Sailboat Calculations

Definitions
S.A. / Displ.: 13.56
Bal. / Displ.: 34.29
Disp: / Len: 397.54
Comfort Ratio: 43.51
Capsize Screening Formula: 1.72
S#: 0.84
Hull Speed: 7.81 kn
Pounds/Inch Immersion: 1,700.80 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 16.25 m
J: 4.75 m
P: 14.17 m
E: 4.72 m
PY: 9.14 m
EY: 2.59 m
S.A. Fore: 38.62 m²
S.A. Main: 33.48 m²
S.A. Total (100% Fore + Main Triangles): 72.10 m²
S.A./Displ. (calc.): 11.65
Est. Forestay Length: 16.93 m

Sailboat Links

Designers: Robert K. Johnson
Download Boat Record:

Notes

Also available as a Cutter.