AMPHIBIAN 30

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 29.81 ft
LWL: 24.50 ft
S.A. (reported): 450.00 ft²
Beam: 10.20 ft
Displacement: 6,500.00 lb
Ballast: 2,500.00 lb
Max Draft: 5.39 ft
Construction: FG
First Built: 1981
# Built: 2
Designer: Nelson/Marek

Sailboat Calculations

Definitions
S.A. / Displ.: 20.74
Bal. / Displ.: 38.46
Disp: / Len: 197.32
Comfort Ratio: 17.46
Capsize Screening Formula: 2.19
S#: 3.15
Hull Speed: 6.63 kn
Pounds/Inch Immersion: 892.92 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

HELP
I: 42.00 ft
J: 11.75 ft
P: 36.50 ft
E: 11.08 ft
S.A. Fore: 246.75 ft²
S.A. Main: 202.21 ft²
S.A. Total (100% Fore + Main Triangles): 448.96 ft²
S.A./Displ. (calc.): 20.69
Est. Forestay Length: 43.61 ft

Sailboat Links

Designers: Nelson Marek
Download Boat Record:

Notes

Winner in class at the MORC Internationals a number of times. Only 2 built: ('Cowboy' & 'Rabble'.)
Thanks to 'SPB' for additional information.