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AMERICAN 21 (AMI)

AMERICAN 21 (AMI) built by American Mariner Industries (USA) and designed by Arthur S. Henry. Her first hull was built in 1979 with an overall lengh of 6.32 m or 20.75 ft long

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AMERICAN 21 (AMI) Sailboat Specifications​

Features

Overall Length (LOA) m / ft6.32 m / 20.75 ft
Builder(s)American Mariner Industries
Designer(s)Arthur S. Henry
BrandAmerican
CountryUnited States
Hull TypeFin w/transom hung rudder
First Hull Built1979
Rigging TypeMasthead Sloop
UnsinkableNo
TrailerableNo
Ballast Ratio36

Dimensions

Overall Length (LOA) 6.32 m / 20.75 ft
Waterline Length (LWL)5.39 m / 17.67 ft
Beam (width)2.39 m / 7.83 ft
Draft0.66 m / 2.17 ft
Light Displacement (MLC) 1134 kg / 2500 lb
Maximum Displacement1134 kg / 2500 lb
Ballast Weight408 kg / 900 lb

Performance

Capsize Screening Formula (CSF)2.31
Comfort Ratio13.4
Displacement-Length Ratio (DLR)202.29
Ballast Ratio36
Sail Area to Displacement17.07

Above Deck

Estimated Forestay Length8.05 m / 26.41 ft
Reported Sail Area18.21 m² / 196.00 ft²
Total Sail Area18.20 m² / 195.95 ft²
Mainsail Area8.33 m² / 89.70 ft²
I25.00 ft * 7.62 m
J8.50 ft * 2.59 m
P23.00 ft * 7.01 m
E7.80 ft * 2.38 m
PY4.00 ft * 1.22 m
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