Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/transom hung rudder
Rigging Type: Masthead Sloop
LOA: 28.00 ft
LWL: 24.50 ft
S.A. (reported): 373.00 ft²
Beam: 9.42 ft
Displacement: 6,750.00 lb
Ballast: 3,000.00 lb
Max Draft: 4.33 ft
Construction: FG
First Built: 1972
Last Built: 1988
Builder: Aloha Yachts International (CAN)
Designer: Brewer/Walstrom

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Sailboat Calculations

S.A. / Displ.: 16.76
Bal. / Displ.: 44.44
Disp: / Len: 204.91
Comfort Ratio: 20.58
Capsize Screening Formula: 2.00
S#: 2.62
Hull Speed: 6.63 kn
Pounds/Inch Immersion: 824.64 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 35.50 ft
J: 12.00 ft
P: 30.40 ft
E: 10.50 ft
S.A. Fore: 213.00 ft²
S.A. Main: 159.60 ft²
S.A. Total (100% Fore + Main Triangles): 372.60 ft²
S.A./Displ. (calc.): 16.74
Est. Forestay Length: 37.47 ft

Sailboat Links

Designers: Edward S. Brewer
Builders: Ouyang Boat Works (CAN)
Associations: Aloha Owners
Download Boat Record:


Similar to the later ALOHA 8.5.
Dimensions for tall rig:
I:37.00' / 11.28m
J:12.00' / 3.66m
P:32.00' / 9.75m
E:10.50' / 3.20m
Apparently there were other rigs besides the ones described here.
Photo courtesy of Adam Hunt.