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SAN JUAN 21
Built by Clark Boat Co. (USA)
• Designed by Don Clark
Market Value
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General Information
Hull Type:
Swing Keel
Rigging Type:
Fractional Sloop
Construction:
FG
First Built:
1970
Last Built:
1977
Number Built:
2600
Dimensions
Length Overall (LOA):
6.25 m
Length Waterline (LWL):
5.18 m
Beam:
2.13 m
Draft (Max):
1.22 m
Draft (Min):
0.30 m
Weight & Ballast
Displacement:
567 kg
Ballast:
181 kg
Ballast Type:
Lead
Sail Plan
Foresail Area:
8.36 m²
Mainsail Area:
9.35 m²
Total Sail Area (calculated):
17.71 m²
Sail Area (reported):
17.65 m²
I (Fore Triangle Height):
6.86 m
J (Fore Triangle Base):
2.44 m
P (Mainsail Hoist):
7.01 m
E (Boom Length):
2.67 m
Engine & Systems
Performance Ratios
Hull Speed:
5.52 knots
SA/Displacement (Calculated):
25.85
SA/Displacement (Reported):
26.25
Ballast/Disp Ratio:
32.00%
Displacement/Length:
113.58
Comfort Ratio:
8.01
Capsize Screening:
2.60
S-Number:
5.35
Notes
Clark Boat Co. had previously built a number of One-Design Dinghy's, but this was the first 'SAN JUAN' and a huge success.