Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 33.07 ft
LWL: 24.44 ft
S.A. (reported): 430.00 ft²
Beam: 10.08 ft
Displacement: 13,000.00 lb
Ballast: 5,462.00 lb
Max Draft: 5.75 ft
Construction: FG
First Built: 1968
Builder: Swarbrick Brothers
Designer: Sparkman & Stephens

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Faryman
Fuel: 26 gals


Water: 79 gals
Headroom: 6.08 ft

Sailboat Calculations

S.A. / Displ.: 12.49
Bal. / Displ.: 42.02
Disp: / Len: 397.55
Comfort Ratio: 34.25
Capsize Screening Formula: 1.72
S#: 0.89
Hull Speed: 6.62 kn
Pounds/Inch Immersion: 880.25 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 40.00 ft
J: 13.00 ft
P: 30.91 ft
E: 11.00 ft
S.A. Fore: 260.00 ft²
S.A. Main: 170.01 ft²
S.A. Total (100% Fore + Main Triangles): 430.01 ft²
S.A./Displ. (calc.): 12.49
Est. Forestay Length: 42.06 ft

Sailboat Links

Builders: Swarbrick & Swarbrick
Related Sailboats: S&S 34
Download Boat Record:


S&S design # 1959.
Specification as built by Swarbricks.
Draft (approx, Mk 1 keel): 1.85m/6.07'
Draft (approx, Mk 2 keel): 1.92m/6.3'
Displacement -depending on fitout. Later boats several 100kg lighter, varies on fitout:
Ballast Mk1 keel: 2480kg/5,450lbs
Ballast Mk 2 keel: 2365kg/5,214lbs