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J/70

J/70 built by J Boats (USA) and designed by Alan Johnstone. Her first hull was built in 2012 with an overall lengh of 6.93 m or 22.74 ft long

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J/70 Sailboat Specifications​

Features

Overall Length (LOA) m / ft6.93 m / 22.74 ft
Builder(s)J Boats Tillotson Pearson
Designer(s)Alan Johnstone
BrandJ Boats
CountryUnited States
Hull TypeFin w/transom hung rudder
Number of Hulls Built1100
First Hull Built2012
Ballast TypeLead
Rigging TypeFractional Sloop
UnsinkableNo
TrailerableNo
Ballast Ratio35.08

Dimensions

Overall Length (LOA) 6.93 m / 22.74 ft
Waterline Length (LWL)6.24 m / 20.47 ft
Beam (width)2.25 m / 7.38 ft
Draft1.50 m / 4.92 ft
Light Displacement (MLC) 812 kg / 1790 lb
Maximum Displacement812 kg / 1790 lb
Ballast Weight285 kg / 628 lb

Performance

Capsize Screening Formula (CSF)2.43
Comfort Ratio9.12
Displacement-Length Ratio (DLR)93.16
Ballast Ratio35.08
Sail Area to Displacement24.58

Above Deck

Estimated Forestay Length8.49 m / 27.85 ft
Reported Sail Area21.00 m² / 226.00 ft²
Total Sail Area21.02 m² / 226.27 ft²
Mainsail Area11.47 m² / 123.48 ft²
I26.77 ft * 8.16 m
J7.68 ft * 2.34 m
P26.16 ft * 7.97 m
E9.44 ft * 2.88 m
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