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TRIANGLE ONE-DESIGN
Built by James Graves (USA)
• Designed by John Alden
General Information
Hull Type:
Fin Keel
Rigging Type:
Fractional Sloop
Construction:
Wood
First Built:
1926
Last Built:
1933
Number Built:
60
Dimensions
Length Overall (LOA):
8.69 m
Length Waterline (LWL):
5.64 m
Beam:
2.29 m
Draft (Max):
1.45 m
Weight & Ballast
Displacement:
2,276 kg
Ballast:
1,134 kg
Ballast Type:
Lead
Sail Plan
Foresail Area:
8.74 m²
Mainsail Area:
33.45 m²
Total Sail Area (calculated):
42.19 m²
Sail Area (reported):
37.81 m²
I (Fore Triangle Height):
6.95 m
J (Fore Triangle Base):
2.51 m
P (Mainsail Hoist):
11.43 m
E (Boom Length):
5.85 m
Engine & Systems
Performance Ratios
Hull Speed:
5.76 knots
SA/Displacement (Calculated):
24.38
SA/Displacement (Reported):
22.29
Ballast/Disp Ratio:
49.83%
Displacement/Length:
353.74
Comfort Ratio:
24.62
Capsize Screening:
1.75
S-Number:
1.80
Notes
Alden design #278. Originally called the MARBLEHEAD CLASS, the JAMESTOWN CLASS.