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SAN JUAN 21

SAN JUAN 21 built by Clark Boat Co. (USA) and designed by Don Clark. Her first hull was built in 1970 with an overall lengh of 6.25 m or 20.50 ft long

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SAN JUAN 21 Sailboat Specifications​

Features

Overall Length (LOA) m / ft6.25 m / 20.50 ft
Builder(s)Clark Boat Co.
Designer(s)Don Clark
CountryUnited States
Hull TypeSwing Keel
Number of Hulls Built2600
First Hull Built1970
Last Hull Built1977
Ballast TypeLead
Rigging TypeFractional Sloop
UnsinkableNo
TrailerableNo
Ballast Ratio32

Dimensions

Overall Length (LOA) 6.25 m / 20.50 ft
Waterline Length (LWL)5.18 m / 17.00 ft
Beam (width)2.13 m / 7.00 ft
Draft1.22 m / 4.00 ft
Light Displacement (MLC) 567 kg / 1250 lb
Maximum Displacement567 kg / 1250 lb
Ballast Weight181 kg / 400 lb

Performance

Capsize Screening Formula (CSF)2.60
Comfort Ratio8.01
Displacement-Length Ratio (DLR)113.58
Ballast Ratio32
Sail Area to Displacement26.25

Above Deck

Estimated Forestay Length7.28 m / 23.88 ft
Reported Sail Area17.65 m² / 190.00 ft²
Total Sail Area17.71 m² / 190.63 ft²
Mainsail Area9.35 m² / 100.63 ft²
I22.50 ft * 6.86 m
J8.00 ft * 2.44 m
P23.00 ft * 7.01 m
E8.75 ft * 2.67 m
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