Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin with rudder on skeg
Rigging Type: Masthead Sloop
LOA: 9.91 m
LWL: 7.87 m
S.A. (reported): 41.71 m²
Beam: 3.30 m
Displacement: 4,309 kg
Ballast: 2,032 kg
Max Draft: 1.60 m
Construction: FG
Ballast Type: Lead
First Built: 1973
# Built: 147
Builder: Ranger Yachts (USA)
Designer: Gary Mull

Auxiliary Power/Tanks (orig. equip.)

Make: Universal
Model: Atomic 4
Type: Gas
HP: 30

Sailboat Calculations

Definitions
S.A. / Displ.: 16.07
Bal. / Displ.: 47.16
Disp: / Len: 246.09
Comfort Ratio: 22.09
Capsize Screening Formula: 2.05
S#: 2.11
Hull Speed: 6.81 kn
Pounds/Inch Immersion: 999.54 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 12.47 m
J: 4.04 m
P: 11.13 m
E: 2.95 m
S.A. Fore: 25.17 m²
S.A. Main: 16.40 m²
S.A. Total (100% Fore + Main Triangles): 41.57 m²
S.A./Displ. (calc.): 16.01
Est. Forestay Length: 13.10 m
Mast Height from DWL: 13.72 m

Sailboat Links

Designers: Gary Mull
Builders: Ranger Yachts (USA)
Associations: IOR 3/4 ton
Download Boat Record:

Notes

IOR 3/4 ton. Based on 'Swampfire', winner at first 3/4 ton cup (1974) at Miami, FL USA.