Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 25.33 ft / 7.72 m
LWL: 20.00 ft / 6.10 m
S.A. (reported): 287.00 ft² / 26.66 m²
Beam: 8.50 ft / 2.59 m
Displacement: 5,066.00 lb / 2,298 kg
Ballast: 2,200.00 lb / 998 kg
Max Draft: 4.67 ft / 1.42 m
Construction: FG
First Built: 1970
# Built: 300
Builder: Marine Construction (UK)
Designer: Alan Hill

Accomodations

Water: 20 gals / 76 L

Sailboat Calculations

Definitions
S.A. / Displ.: 15.61
Bal. / Displ.: 43.43
Disp: / Len: 282.70
Comfort Ratio: 20.95
Capsize Screening Formula: 1.98
S#: 1.68
Hull Speed: 5.99 kn
Pounds/Inch Immersion: 607.43 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 30.37 ft / 9.26 m
J: 10.23 ft / 3.12 m
P: 25.48 ft / 7.77 m
E: 8.98 ft / 2.74 m
S.A. Fore: 155.34 ft² / 14.43 m²
S.A. Main: 114.41 ft² / 10.63 m²
S.A. Total (100% Fore + Main Triangles): 269.75 ft² / 25.06 m²
S.A./Displ. (calc.): 14.67
Est. Forestay Length: 32.05 ft / 9.77 m

Sailboat Links

Designers: Alan F. Hill
Builders: Marine Construction Ltd. (UK)
Associations: Tomahawk 25 (1970) by Alan Hill
Download Boat Record:

Notes

Roughly half were delivered with bilge keels. (Draft 3.0').
Fitted with a number of different inboard engines.