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J/121

J/121 built by J Boats and designed by Alan Johnstone. Her first hull was built in 2018 with an overall lengh of 12.19 m or 40.00 ft long

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J/121 Sailboat Specifications​

Features

Overall Length (LOA) m / ft12.19 m / 40.00 ft
Builder(s)J Boats Tillotson Pearson
Designer(s)Alan Johnstone
BrandJ Boats
CountryUnited States
Hull TypeFin w/bulb & spade rudder
First Hull Built2018
Ballast TypeCast iron fin/lead bulb
Rigging TypeFractional Sloop
UnsinkableNo
TrailerableNo
Ballast Ratio40.34

Dimensions

Overall Length (LOA) 12.19 m / 40.00 ft
Waterline Length (LWL)10.91 m / 35.78 ft
Beam (width)3.75 m / 12.30 ft
Draft2.36 m / 7.75 ft
Light Displacement (MLC) 5398 kg / 11900 lb
Maximum Displacement5398 kg / 11900 lb
Ballast Weight2177 kg / 4800 lb

Performance

Capsize Screening Formula (CSF)2.16
Comfort Ratio17.55
Displacement-Length Ratio (DLR)115.98
Ballast Ratio40.34
Sail Area to Displacement29.54

Above Deck

Estimated Forestay Length16.35 m / 53.64 ft
Reported Sail Area89.09 m² / 959.00 ft²
Total Sail Area75.19 m² / 809.29 ft²
Mainsail Area38.65 m² / 416.00 ft²
I51.41 ft * 15.67 m
J15.30 ft * 4.66 m
P50.00 ft * 15.24 m
E16.64 ft * 5.07 m
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