Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Cutter
LOA: 9.75 m
LWL: 7.92 m
S.A. (reported): 48.12 m²
Beam: 3.18 m
Displacement: 5,352 kg
Ballast: 2,132 kg
Max Draft: 1.58 m
Construction: FG
First Built: 1976
# Built: 65
Builder: Valiant Yachts (USA)
Designer: Robert Perry

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Westerbeke
Model: L-25
Type: Diesel
HP: 25
Fuel: 174 L


Water: 303 L

Sailboat Calculations

S.A. / Displ.: 16.05
Bal. / Displ.: 39.83
Disp: / Len: 299.72
Comfort Ratio: 28.92
Capsize Screening Formula: 1.83
S#: 1.68
Hull Speed: 6.83 kn
Pounds/Inch Immersion: 968.03 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 12.80 m
J: 4.57 m
P: 11.28 m
E: 3.35 m
S.A. Fore: 29.26 m²
S.A. Main: 18.91 m²
S.A. Total (100% Fore + Main Triangles): 48.17 m²
S.A./Displ. (calc.): 16.06
Est. Forestay Length: 13.59 m

Sailboat Links

Designers: Robert Perry
Builders: Uniflite Inc. (USA)
Valiant Yachts (USA)
Download Boat Record:


Some later boats came with a sloop rig (as with drawing shown here) with the mast moved forward.