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NEPTUNE 550
Built by Neptune Domazan
• Designed by Jacques Fauroux
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General Information
Hull Type:
Swing Keel
Rigging Type:
Fractional Sloop
First Built:
1979
Last Built:
1990
Number Built:
200
Dimensions
Length Overall (LOA):
5.50 m
Length Waterline (LWL):
5.25 m
Beam:
2.45 m
Draft (Max):
1.10 m
Draft (Min):
0.30 m
Weight & Ballast
Displacement:
540 kg
Ballast:
150 kg
Sail Plan
Foresail Area:
7.80 m²
Mainsail Area:
9.23 m²
Sail Area:
17.03 m²
Sail Area (reported):
17.00 m²
I (Fore Triangle Height):
6.50 m
J (Fore Triangle Base):
2.40 m
P (Mainsail Hoist):
7.10 m
E (Boom Length):
2.60 m
Est. Forestay Length:
6.93 m
Engine & Systems
Performance Ratios
Hull Speed:
5.56 knots
SA/Displacement (Calc):
26.16
SA/Displacement (Reported):
26.12
Ballast/Disp Ratio:
27.73%
Displacement/Length:
104.04
Comfort Ratio:
6.55
Capsize Screening:
3.04
S-Number:
5.56
Immersion:
88 kg/cm
Market Value
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