AMPHIBIAN 30

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Fin w/spade rudder
Rigging Type: Masthead Sloop
LOA: 29.81 ft / 9.09 m
LWL: 24.50 ft / 7.47 m
S.A. (reported): 450.00 ft² / 41.81 m²
Beam: 10.20 ft / 3.11 m
Displacement: 6,500.00 lb / 2,948 kg
Ballast: 2,500.00 lb / 1,134 kg
Max Draft: 5.39 ft / 1.64 m
Construction: FG
First Built: 1981
# Built: 2
Designer: Nelson/Marek

KLSC Leaderboard

KLSC Leaderboard

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 / 12.80 m
J: 11.75 ft / 3.58 m
P: 36.50 ft / 11.13 m
E: 11.08 ft / 3.38 m
S.A. Fore: 246.75 ft² / 22.92 m²
S.A. Main: 202.21 ft² / 18.79 m²
S.A. Total (100% Fore + Main Triangles): 448.96 ft² / 41.71 m²
S.A./Displ. (calc.): 20.69
Est. Forestay Length: 43.61 ft / 13.29 m

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.