J/120 Detailed Review

If you are a boat enthusiast looking to get more information on specs, built, make, etc. of different boats, then here is a complete review of J/120. Built by J Boats and designed by Rod Johnstone, the boat was first built in 1994. It has a hull type of Fin w/bulb & spade rudder and LOA is 12.19. Its sail area/displacement ratio 21.67. Its auxiliary power tank, manufactured by Yanmar, runs on Diesel.

J/120 has retained its value as a result of superior building, a solid reputation, and a devoted owner base. Read on to find out more about J/120 and decide if it is a fit for your boating needs.

Boat Information

Boat Specifications

LOA:12.19 m / 39.99 ft
Rigging Type:Fractional Sloop
Hull Type:Fin w/bulb & spade rudder
S.A. (reported):72.46 m2 / 779.95 ft2
Draft (max):2.13 m / 6.99 ft
Displacement:6305 kg / 13900.13 lbs
Ballast:2722 kg / 6000.98 lbs
Ballast Type:Lead
Last Built:2006
Designers:Rod Johnstone
LWL:10.52 m / 34.51 ft

Sail Boat Calculation

Comfort Ratio:21.71
Capsize Screening Formula:2.00

Rig And Sail Specs

I:15.39 m / 50.49 ft
ISP:14.17 m / 46.49 ft
E:5.43 m / 17.81 ft
ISP:15.85 m / 52.00 ft
S.A. Fore:34.01 m2 / 366.08 ft2

Auxillary Power Tank

Fuel:102 L / 26.95 gals


Water:284 L / 75.02 gals


Builders:J Boats
Designers:Rod Johnstone


Who designed the J/120?

J/120 was designed by Rod Johnstone.

Who builds J/120?

J/120 is built by J Boats.

When was J/120 first built?

J/120 was first built in 1994.

How long is J/120?

J/120 is 10.52 m in length.

What is mast height on J/120?

J/120 has a mast height of 14.17 m.

Member Boats at HarborMoor