J/34 C 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/34 C. Built by J Boats and designed by Rod Johnstone, the boat was first built in 1986. It has a hull type of Wing Keel and LOA is 10.52. Its sail area/displacement ratio 21.81. Its auxiliary power tank, manufactured by Volvo, runs on Diesel.

J/34 C 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/34 C and decide if it is a fit for your boating needs.

Boat Information

Boat Specifications

LOA:10.52 m / 34.51 ft
Rigging Type:Masthead Sloop
Hull Type:Wing Keel
S.A. (reported):66.15 m2 / 712.03 ft2
Draft (max):1.49 m / 4.89 ft
Displacement:5443 kg / 11999.75 lbs
Ballast:2041 kg / 4499.63 lbs
Ballast Type:Lead
Designers:Rod Johnstone
LWL:9.14 m / 29.99 ft

Sail Boat Calculation

Comfort Ratio:23.97
Capsize Screening Formula:1.94

Rig And Sail Specs

I:13.93 m / 45.70 ft
S.A. Fore:12.34 m / 40.49 ft
E:4.57 m / 14.99 ft
S.A. Fore:28.66 m2 / 308.49 ft2
S.A. Main:28.22 m2 / 303.76 ft2
S.A. Total (100% Fore + Main Triangles)56.88 m2 / 612.25 ft2

Auxillary Power Tank



Builders:J Boats
Designers:Rod Johnstone


Who designed the J/34 C?

J/34 C was designed by Rod Johnstone.

Who builds J/34 C?

J/34 C is built by J Boats.

When was J/34 C first built?

J/34 C was first built in 1986.

How long is J/34 C?

J/34 C is 9.14 m in length.

What is mast height on J/34 C?

J/34 C has a mast height of 12.34 m.

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