Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 27.92 ft
LWL: 23.08 ft
S.A. (reported): 361.00 ft²
Beam: 9.83 ft
Displacement: 7,000.00 lb
Ballast: 3,000.00 lb
Max Draft: 5.00 ft
Construction: FG solid hull/plywood deck
Ballast Type: Lead
First Built: 1975
Last Built: 1985
# Built: 430
Builder: Islander Yachts (USA)
Designer: Robert Perry

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
HP: 30
Fuel: 20 gals


Water: 24 gals

Sailboat Calculations

S.A. / Displ.: 15.83
Bal. / Displ.: 42.86
Disp: / Len: 254.18
Comfort Ratio: 21.01
Capsize Screening Formula: 2.06
S#: 2.02
Hull Speed: 6.44 kn
Pounds/Inch Immersion: 810.65 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 36.80 ft
J: 11.80 ft
P: 31.16 ft
E: 9.16 ft
S.A. Fore: 217.12 ft²
S.A. Main: 142.71 ft²
S.A. Total (100% Fore + Main Triangles): 359.83 ft²
S.A./Displ. (calc.): 15.78
Est. Forestay Length: 38.65 ft

Sailboat Links

Designers: Robert Perry
Builders: Islander / Tradewind Yachts
Products: The Sail Warehouse
Download Boat Record:


Diesel power was available as an option.
Shoal draft: 4.0'.
A similar 'Bahama' model was introduced in 1981 but sold poorly. Not long after, the standard model was then brought back into production until 1985. With more than 400 sold, this was among the brands most successful models.
Rated highly on the used sailboat market. Robert Perry has stated that this is one of his favorite designs.