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J/28 built by J Boats Tillotson Pearson (USA) and designed by Rod Johnstone. Her first hull was built in 1986 with an overall lengh of 8.69 m or 28.50 ft long

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J/28 Sailboat Specifications​


Overall Length (LOA) m / ft8.69 m / 28.50 ft
Builder(s)J Boats Tillotson Pearson
Designer(s)Rod Johnstone
BrandJ Boats
CountryUnited States
Hull TypeFin w/spade rudder
Number of Hulls Built71
First Hull Built1986
Last Hull Built1988
Ballast TypeLead
Rigging TypeFractional Sloop
Freshwater Tank Capacity lt/gal132 L / 35 gal
Ballast Ratio37.97


Overall Length (LOA) 8.69 m / 28.50 ft
Waterline Length (LWL)7.32 m / 24.00 ft
Beam (width)3.05 m / 10.00 ft
Draft1.52 m / 5.00 ft
Light Displacement (MLC) 3583 kg / 7900 lb
Maximum Displacement3583 kg / 7900 lb
Ballast Weight1361 kg / 3000 lb


Capsize Screening Formula (CSF)2.01
Comfort Ratio22.43
Displacement-Length Ratio (DLR)255.12
Ballast Ratio37.97
Sail Area to Displacement16.67

Above Deck

Estimated Forestay Length10.85 m / 35.58 ft
Reported Sail Area38.28 m² / 412.00 ft²
Total Sail Area38.32 m² / 412.50 ft²
Mainsail Area21.74 m² / 234.00 ft²
I34.00 ft * 10.36 m
J10.50 ft * 3.20 m
P36.00 ft * 10.97 m
E13.00 ft * 3.96 m
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