Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 12.19 m
LWL: 9.75 m
S.A. (reported): 55.46 m²
Beam: 3.66 m
Displacement: 4,082 kg
Ballast: 1,800 kg
Max Draft: 1.98 m
Construction: FG
Ballast Type: Lead
First Built: 1980
Builder: Wilderness Yachts (USA)
Designer: Gary Mull

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar
Type: Diesel

Sailboat Calculations

S.A. / Displ.: 22.15
Bal. / Displ.: 44.10
Disp: / Len: 122.62
Comfort Ratio: 14.77
Capsize Screening Formula: 2.31
S#: 4.58
Hull Speed: 7.58 kn
Pounds/Inch Immersion: 1,372.07 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 14.33 m
J: 4.57 m
P: 12.65 m
E: 3.60 m
S.A. Fore: 32.75 m²
S.A. Main: 22.75 m²
S.A. Total (100% Fore + Main Triangles): 55.50 m²
S.A./Displ. (calc.): 22.16
Est. Forestay Length: 15.04 m

Sailboat Links

Designers: Gary Mull
Builders: Wilderness Boat Works
Download Boat Record:


Probably an 'extended' version of the WILDERNESS 38 design. At least 5 were built.
Later versions had a taller rig.