Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 10.30 m
LWL: 8.51 m
S.A. (reported): 51.47 m²
Beam: 3.33 m
Displacement: 4,763 kg
Ballast: 2,177 kg
Max Draft: 1.80 m
Construction: FG
First Built: 1975
Last Built: 1979
# Built: 30
Builder: Calgan Marine (CAN)
Designer: Hein Driehuyzen

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Yanmar
Model: 2QM15H
Type: Diesel
HP: 16
Fuel: 76 L


Water: 114 L

Sailboat Calculations

S.A. / Displ.: 18.55
Bal. / Displ.: 45.71
Disp: / Len: 215.37
Comfort Ratio: 22.64
Capsize Screening Formula: 2.00
S#: 2.67
Hull Speed: 7.08 kn
Pounds/Inch Immersion: 1,089.39 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 13.78 m
J: 4.51 m
P: 11.83 m
E: 3.32 m
S.A. Fore: 31.07 m²
S.A. Main: 19.65 m²
S.A. Total (100% Fore + Main Triangles): 50.72 m²
S.A./Displ. (calc.): 18.28
Est. Forestay Length: 14.50 m

Sailboat Links

Designers: Hein Driehuyzen
Builders: Calgan Marine Ltd. (CAN)
Clark Boat Company
Associations: Crown 34; Sun 1030, San Juan 34
Related Sailboats: SAN JUAN 34
Download Boat Record:


After the first CROWN 34's were built, Calgan Marine sold the molds to GlassFab of Monroe, WA.,USA. A few were then manufactured and sold as the SUN 1030. Later, the molds were repossessed by Calgan and then sold to Clark Boat Co. USA. With a few modifications they were then built and sold as the SAN JUAN 34.