Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin Keel
Rigging Type: Fractional Sloop
LOA: 30.21 ft
LWL: 20.00 ft
S.A. (reported): 360.00 ft²
Beam: 6.42 ft
Displacement: 4,600.00 lb
Ballast: 3,080.00 lb
Max Draft: 4.75 ft
Construction: FG
Ballast Type: Lead
First Built: 1962
# Built: 220
Builder: Cape Cod Shipbuilding (USA)
Designer: Sparkman & Stephens

Sailboat Calculations

Definitions
S.A. / Displ.: 20.88
Bal. / Displ.: 66.96
Disp: / Len: 256.70
Comfort Ratio: 25.88
Capsize Screening Formula: 1.55
S#: 2.46
Hull Speed: 5.99 kn
Pounds/Inch Immersion: 458.79 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 29.88 ft
J: 9.33 ft
P: 33.38 ft
E: 13.38 ft
S.A. Fore: 139.39 ft²
S.A. Main: 223.31 ft²
S.A. Total (100% Fore + Main Triangles): 362.70 ft²
S.A./Displ. (calc.): 21.04
Est. Forestay Length: 31.30 ft

Sailboat Links

Notes

S&S design #1720.
Commissioned (1962) by noted American sailor Cornelius Shields as a fiberglass replacement for the INTERNATIONAL ONE-DESIGN.
Images and or info. from first builder (Chris Craft) brochure.