Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 40.00 ft
LWL: 32.00 ft
S.A. (reported): 597.00 ft²
Beam: 12.00 ft
Displacement: 9,000.00 lb
Ballast: 3,969.00 lb
Max Draft: 6.50 ft
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: 47.00 ft
J: 15.00 ft
P: 41.50 ft
E: 11.80 ft
S.A. Fore: 352.50 ft²
S.A. Main: 244.85 ft²
S.A. Total (100% Fore + Main Triangles): 597.35 ft²
S.A./Displ. (calc.): 22.16
Est. Forestay Length: 49.34 ft

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.