Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Ketch
LOA: 40.00 ft
LWL: 31.00 ft
S.A. (reported): 786.00 ft²
Beam: 13.25 ft
Displacement: 28,000.00 lb
Ballast: 9,200.00 lb
Max Draft: 4.67 ft
Construction: FG
First Built: 1975
Builder: Hughes/North Star/Aura Yachts Inc. (CAN)
Designer: Sparkman & Stephens

Auxiliary Power/Tanks (orig. equip.)

Type: Diesel
Fuel: 75 gals

Accomodations

Water: 180 gals

Sailboat Calculations

Definitions
S.A. / Displ.: 13.69
Bal. / Displ.: 32.86
Disp: / Len: 419.59
Comfort Ratio: 41.12
Capsize Screening Formula: 1.75
S#: 0.74
Hull Speed: 7.46 kn
Pounds/Inch Immersion: 1,467.65 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 49.25 ft
J: 14.00 ft
P: 43.25 ft
E: 14.00 ft
PY: 28.25 ft
EY: 9.75 ft
S.A. Fore: 344.75 ft²
S.A. Main: 302.75 ft²
S.A. Total (100% Fore + Main Triangles): 647.50 ft²
S.A./Displ. (calc.): 11.28
Est. Forestay Length: 51.20 ft

Sailboat Links

Designers: Sparkman & Stephens
Builders: Hughes Boat Works
Related Sailboats: SWIFT 40
NORTH STAR 80/20
Download Boat Record:

Notes

S&S design #2134.
An earlier version was called the NORTH STAR 80/20. Another built to his design was the SWIFT 40, built in KOREA.