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IRWIN 10/4
Built by Irwin Yacht & Marine Corporation (USA)
• Designed by Ted Irwin
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General Information
Hull Type:
Keel/CB & spade rudder
Rigging Type:
Cutter
First Built:
1975
Last Built:
1982
Dimensions
Length Overall (LOA):
7.72 m
Length Waterline (LWL):
6.65 m
Beam:
3.15 m
Draft (Max):
2.03 m
Draft (Min):
0.84 m
Weight & Ballast
Displacement:
3,175 kg
Ballast:
907 kg
Sail Plan
Foresail Area:
19.51 m²
Mainsail Area:
17.16 m²
Sail Area:
36.67 m²
Sail Area (reported):
36.79 m²
I (Fore Triangle Height):
10.67 m
J (Fore Triangle Base):
3.66 m
P (Mainsail Hoist):
9.19 m
E (Boom Length):
3.73 m
Est. Forestay Length:
11.28 m
Engine & Systems
Performance Ratios
Hull Speed:
6.26 knots
SA/Displacement (Calc):
17.31
SA/Displacement (Reported):
17.37
Ballast/Disp Ratio:
28.57%
Displacement/Length:
300.39
Comfort Ratio:
21.09
Capsize Screening:
2.16
S-Number:
1.77
Immersion:
144 kg/cm
Market Value
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