Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 23.67 ft / 7.21 m
LWL: 20.00 ft / 6.10 m
S.A. (reported): 244.00 ft² / 22.67 m²
Beam: 7.92 ft / 2.41 m
Displacement: 3,400.00 lb / 1,542 kg
Ballast: 1,500.00 lb / 680 kg
Max Draft: 3.75 ft / 1.14 m
Construction: FG
First Built: 1971
Last Built: 1978
# Built: 740
Builder: Ranger Yachts (USA)
Designer: Gary Mull

Sailboat Calculations

Definitions
S.A. / Displ.: 17.31
Bal. / Displ.: 44.12
Disp: / Len: 189.73
Comfort Ratio: 15.81
Capsize Screening Formula: 2.11
S#: 2.87
Hull Speed: 5.99 kn
Pounds/Inch Immersion: 565.98 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 27.54 ft / 8.39 m
J: 9.75 ft / 2.97 m
P: 24.00 ft / 7.32 m
E: 9.17 ft / 2.80 m
S.A. Fore: 134.26 ft² / 12.47 m²
S.A. Main: 110.04 ft² / 10.22 m²
S.A. Total (100% Fore + Main Triangles): 244.30 ft² / 22.70 m²
S.A./Displ. (calc.): 17.33
Est. Forestay Length: 29.21 ft / 8.90 m

Sailboat Links

Designers: Gary Mull
Builders: Ranger Yachts (USA)
Associations: Quarter Ton Class
Products: The Sail Warehouse
Download Boat Record:

Notes

Designed to rate at IOR 1/4 ton(18') level.
Tall rig version first introduced as an option in 1974.
I=30.00'/9.14m
J=9.75'/3.14m
P=25.75'/8.30m
E=9.17'/2.95m