SAN JUAN 21

SAN JUAN 21 photo SAN JUAN 21 drawing

Sailboat Specifications


Hull Type:
Swing Keel
Rigging Type:
Fractional Sloop
LOA:
20.50 ft / 6.25 m
LWL:
17.50 ft / 5.33 m
S.A. (reported):
193.00 ft2 / 17.93 m2
Beam:
7.00 ft / 2.13 m
Draft (max):
4.00 ft / 1.22 m
Draft (min):
1.00 ft / 0.30 m
Displacement:
1,400 lb / 635 kg
Ballast:
400 lb / 181 kg
S.A./Disp.:
24.73
Bal./Disp.:
28.57
Disp./Len.:
116.62
Construction:
FG
Ballast Type:
First Built:
1970
Last Built:
1977
# Built:
2600
Builder:
Clark Boat Co. (USA)
Designer:
Don Clark
Website:

Sailboat Calculations

S.A./Disp.:
24.73
Bal./Disp.:
28.57
Disp./Len.:
116.62
Comfort Ratio:
8.80

Rig and Sail Particulars

I:
22.50 ft / 6.86 m
J:
8.21 ft / 2.50 m
P:
23.00 ft / 7.01 m
E:
8.75 ft / 2.67 m
SPL/TPS:
ISP:
S.A. Fore:
92.36 ft2 / 8.58 m2
S.A. Main:
100.63 ft2 / 9.35 m2
S.A. Total (100% Fore + Main Triangles)
192.99 ft2 / 17.93 m2
S.A./Disp. (calc.):
24.72
Est. Forestay Len.:
23.95 ft / 7.30 m

Sailboat Links

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. Designed displacement was 1250 lbs. but it was found that most ended up at 1400 lbs. Thanks to Samuel Tricky for providing corrected information for this and number of other boats in this category.



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