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AMPHIBIAN 30
• Designed by Nelson/Marek
General Information
Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
Construction:
FG
First Built:
1981
Number Built:
2
Dimensions
Length Overall (LOA):
9.09 m
Length Waterline (LWL):
7.47 m
Beam:
3.11 m
Draft (Max):
1.64 m
Weight & Ballast
Displacement:
2,948 kg
Ballast:
1,134 kg
Sail Plan
Foresail Area:
22.92 m²
Mainsail Area:
18.79 m²
Total Sail Area (calculated):
41.71 m²
Sail Area (reported):
41.81 m²
I (Fore Triangle Height):
12.80 m
J (Fore Triangle Base):
3.58 m
P (Mainsail Hoist):
11.13 m
E (Boom Length):
3.38 m
Engine & Systems
Performance Ratios
Hull Speed:
6.63 knots
SA/Displacement (Calculated):
20.29
SA/Displacement (Reported):
20.74
Ballast/Disp Ratio:
38.46%
Displacement/Length:
197.32
Comfort Ratio:
17.46
Capsize Screening:
2.19
S-Number:
3.15
Notes
Winner in class at the MORC Internationals a number of times. Only 2 built: ('Cowboy' & 'Rabble'.)