Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin Keel
Rigging Type: Masthead Sloop
LOA: 34.65 ft
LWL: 23.75 ft
S.A. (reported): 529.00 ft²
Beam: 10.00 ft
Displacement: 12,500.00 lb
Ballast: 5,200.00 lb
Max Draft: 5.00 ft
Construction: FG (solid laminate)
Ballast Type: Lead
First Built: 1966
Last Built: 1978
# Built: 65
Builder: Bristol Yachts Inc. (USA)
Designer: Clifford P. Swain /John G. Alden Assoc.

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
HP: 30
Fuel: 25 gals


Water: 130 gals

Sailboat Calculations

S.A. / Displ.: 15.77
Bal. / Displ.: 41.60
Disp: / Len: 416.55
Comfort Ratio: 33.29
Capsize Screening Formula: 1.73
S#: 0.99
Hull Speed: 6.53 kn
Pounds/Inch Immersion: 848.61 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 38.66 ft
J: 13.55 ft
P: 33.92 ft
E: 15.90 ft
S.A. Fore: 261.92 ft²
S.A. Main: 269.66 ft²
S.A. Total (100% Fore + Main Triangles): 531.58 ft²
S.A./Displ. (calc.): 15.85
Est. Forestay Length: 40.97 ft

Sailboat Links

Designers: Clifford Swaine
John G. Alden
Builders: Bristol Yachts
Download Boat Record:


Alden design #1000. Clifford Swain, who drew the lines for this yacht, was chief designer for the Alden firm at this time. Available with standard or dinette interior (shown here).
(Thanks to 'Snurrbart', for providing updated information.)
Keel/CB version: BU: 3.75'; BD: 9.0'
Also available as a yawl.
I: 38.66'
J: 13.55'
P: 33.92'
E: 15.60'
EY: 6.75'
Total SA: 584 sq.ft.