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IRWIN 31 CITATION
Built by Irwin Yachts (USA)
• Designed by Ted Irwin
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General Information
Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
First Built:
1983
Dimensions
Length Overall (LOA):
9.53 m
Length Waterline (LWL):
8.08 m
Beam:
3.35 m
Draft (Max):
1.83 m
Max Height:
14.05 m
Weight & Ballast
Displacement:
4,218 kg
Ballast:
1,542 kg
Sail Plan
Foresail Area:
23.41 m²
Mainsail Area:
20.62 m²
Sail Area:
44.04 m²
Sail Area (reported):
44.04 m²
I (Fore Triangle Height):
12.80 m
J (Fore Triangle Base):
3.66 m
P (Mainsail Hoist):
11.28 m
E (Boom Length):
3.66 m
Est. Forestay Length:
13.31 m
Engine & Systems
Engine Make:
Yanmar
Engine Type:
Diesel
Engine Power:
15 HP
Performance Ratios
Hull Speed:
6.90 knots
SA/Displacement (Calc):
17.21
SA/Displacement (Reported):
17.21
Ballast/Disp Ratio:
36.56%
Displacement/Length:
223.10
Comfort Ratio:
21.11
Capsize Screening:
2.10
S-Number:
2.47
Immersion:
186 kg/cm
Notes
Keel/cb version:
Market Value
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