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US 21
Built by US Yachts - Bayliner (USA)
General Information
Hull Type:
Lifting Keel
Rigging Type:
Fractional Sloop
Construction:
FG
First Built:
1982
Dimensions
Length Overall (LOA):
6.48 m
Length Waterline (LWL):
5.49 m
Beam:
2.44 m
Draft (Max):
1.40 m
Draft (Min):
0.38 m
Weight & Ballast
Displacement:
771 kg
Ballast:
91 kg
Sail Plan
Foresail Area:
9.58 m²
Mainsail Area:
10.87 m²
Total Sail Area (calculated):
20.45 m²
Sail Area (reported):
20.44 m²
I (Fore Triangle Height):
8.03 m
J (Fore Triangle Base):
2.39 m
P (Mainsail Hoist):
7.92 m
E (Boom Length):
2.74 m
Engine & Systems
Performance Ratios
Hull Speed:
5.69 knots
SA/Displacement (Calculated):
24.32
SA/Displacement (Reported):
24.77
Ballast/Disp Ratio:
11.76%
Displacement/Length:
130.13
Comfort Ratio:
8.67
Capsize Screening:
2.68
S-Number:
4.78
Notes
Later it became the TRITON 21.