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X-21(NORTON) MH
Built by Tradition Yachts (USA)
• Designed by Tom Norton
General Information
Hull Type:
Fin with rudder on skeg
Rigging Type:
Masthead Sloop
Construction:
FG
First Built:
1972
Dimensions
Length Overall (LOA):
6.40 m
Length Waterline (LWL):
5.33 m
Beam:
1.98 m
Draft (Max):
1.07 m
Weight & Ballast
Displacement:
907 kg
Ballast:
544 kg
Ballast Type:
Lead
Sail Plan
Foresail Area:
11.29 m²
Mainsail Area:
7.48 m²
Total Sail Area (calculated):
18.77 m²
Sail Area (reported):
18.77 m²
I (Fore Triangle Height):
8.23 m
J (Fore Triangle Base):
2.74 m
P (Mainsail Hoist):
7.01 m
E (Boom Length):
2.13 m
Engine & Systems
Performance Ratios
Hull Speed:
5.61 knots
SA/Displacement (Calculated):
20.03
SA/Displacement (Reported):
20.41
Ballast/Disp Ratio:
60.00%
Displacement/Length:
166.60
Comfort Ratio:
13.76
Capsize Screening:
2.07
S-Number:
3.57
Notes
The original design had a transom hung rudder.