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CHALLENGER 7.4
Built by Challenger Yachts Ltd. (CAN)
• Designed by Alex McGruer
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General Information
Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
First Built:
1974
Last Built:
1980
Number Built:
800
Dimensions
Length Overall (LOA):
7.42 m
Length Waterline (LWL):
6.76 m
Beam:
2.49 m
Draft (Max):
1.04 m
Weight & Ballast
Displacement:
1,814 kg
Ballast:
948 kg
Ballast Type:
Iron
Sail Plan
Foresail Area:
11.69 m²
Mainsail Area:
9.12 m²
Sail Area:
20.82 m²
Sail Area (reported):
21.37 m²
I (Fore Triangle Height):
8.08 m
J (Fore Triangle Base):
2.90 m
P (Mainsail Hoist):
7.25 m
E (Boom Length):
2.51 m
Est. Forestay Length:
8.58 m
Engine & Systems
Performance Ratios
Hull Speed:
6.31 knots
SA/Displacement (Calc):
14.27
SA/Displacement (Reported):
14.64
Ballast/Disp Ratio:
52.25%
Displacement/Length:
163.88
Comfort Ratio:
16.50
Capsize Screening:
2.06
S-Number:
2.77
Immersion:
116 kg/cm
Notes
Also known as the CHALLENGER 7.5 and CHALLENGER 24.
Market Value
No pricing data available yet.
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