Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Ketch
LOA: 11.92 m
LWL: 9.45 m
S.A. (reported): 73.02 m²
Beam: 4.06 m
Displacement: 11,022 kg
Ballast: 4,054 kg
Max Draft: 1.60 m
Construction: FG
Ballast Type: Lead
First Built: 1979
Last Built: 1984
Builder: Kang Nam Shipbuilders (KOREA)
Designer: Sparkman & Stephens

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Auxiliary Power/Tanks (orig. equip.)

Make: Perkins
Type: Diesel
Fuel: 189 L


Water: 621 L

Sailboat Calculations

S.A. / Displ.: 15.05
Bal. / Displ.: 36.78
Disp: / Len: 364.14
Comfort Ratio: 35.68
Capsize Screening Formula: 1.84
Hull Speed: 7.46 kn
Pounds/Inch Immersion: 1,476.52 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Designers: Sparkman & Stephens
Builders: Kang Nam Shipbuilders (KOR)
Related Sailboats: NORTH STAR 80/20
Download Boat Record:


S&S #2134.2. One of a number of boats built to this design around the world including the NORTH STAR 80/20(HUGHES 40). Others were based on this hull with various modifications to the deck and coachroof.
Thanks to SWIFT 40 owner Norm Owens for supplying this information.