Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Long Keel
Rigging Type: Masthead Ketch
LOA: 48.00 ft / 14.63 m
LWL: 38.50 ft / 11.73 m
S.A. (reported): 1,091.00 ft² / 101.36 m²
Beam: 14.25 ft / 4.34 m
Displacement: 50,000.00 lb / 22,680 kg
Ballast: 16,500.00 lb / 7,484 kg
Max Draft: 5.58 ft / 1.70 m
Construction: FG
First Built: 1978
Builder: Sunward Yachts/Bennett Bros. Yachts (USA)
Designer: Sparkman & Stephens

Auxiliary Power/Tanks (orig. equip.)

Make: Detroit
Type: Diesel
HP: 127

Sailboat Calculations

Definitions
S.A. / Displ.: 12.92
Bal. / Displ.: 33.00
Disp: / Len: 391.15
Comfort Ratio: 54.33
Capsize Screening Formula: 1.55
S#: 0.73
Hull Speed: 8.31 kn
Pounds/Inch Immersion: 1,960.30 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 56.00 ft / 17.07 m
J: 17.00 ft / 5.18 m
P: 50.00 ft / 15.24 m
E: 15.00 ft / 4.57 m
PY: 37.00 ft / 11.28 m
EY: 13.00 ft / 3.96 m
S.A. Fore: 476.00 ft² / 44.22 m²
S.A. Main: 375.00 ft² / 34.84 m²
S.A. Total (100% Fore + Main Triangles): 851.00 ft² / 79.06 m²
S.A./Displ. (calc.): 10.08
Est. Forestay Length: 58.52 ft / 17.84 m

Sailboat Links

Designers: Sparkman & Stephens
Download Boat Record:

Notes

S&S design #1674.2.
Based on an earlier production model called the MARLOW 48.