Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 36.74 ft
LWL: 29.69 ft
S.A. (reported): 770.70 ft²
Beam: 11.61 ft
Displacement: 17,196.00 lb
Ballast: 7,165.00 lb
Max Draft: 6.23 ft
Min Draft: 5.25 ft
Construction: FG
First Built: 1980
Builder: Breehorn
Designer: Dick Koopmans Sr..

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar
Model: 3JH4E
Type: Diesel; Saildrive
HP: 40
Fuel: 53 gals


Water: 53 gals

Sailboat Calculations

S.A. / Displ.: 18.58
Bal. / Displ.: 41.67
Disp: / Len: 293.32
Comfort Ratio: 31.90
Capsize Screening Formula: 1.80
S#: 1.73
Hull Speed: 7.30 kn
Pounds/Inch Immersion: 1,231.65 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 48.23 ft
J: 16.08 ft
P: 43.73 ft
E: 12.80 ft
S.A. Fore: 387.77 ft²
S.A. Main: 279.87 ft²
S.A. Total (100% Fore + Main Triangles): 667.64 ft²
S.A./Displ. (calc.): 16.09
Est. Forestay Length: 50.84 ft
Mast Height from DWL: 53.90 ft

Sailboat Links

Designers: Dick Koopmans
Builders: Breehorn (NL)
Download Boat Record:


Thanks to Aike van der Hoeff for providing information on this yacht.