J/33

1988 — 1991
Designer
Rod Johnstone
Builder
J Boats
Associations
?
# Built
51
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
33 5 / 10.2 m
Waterline Length
27 11 / 8.5 m
Beam
10 11 / 3.4 m
Draft
6 2 / 1.9 m
Displacement
8,100 lbs / 3,674 kg
Ballast
3,180 lbs / 1,442 kg (Lead)
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
561 ft2 / 52.1 m2
Total Sail Area
560.6 ft2 / 52.1 m2
Mainsail
Sail Area
282.8 ft2 / 26.3 m2
P
39 0 / 11.9 m
E
14 6 / 4.4 m
Mast Height
47 8 / 14.5 m
Foresail
Sail Area
277.8 ft2 / 25.8 m2
I
44 1 / 13.4 m
J
12 7 / 3.8 m
Forestay Length
45 10 / 14 m

Auxilary Power

Make
Volvo or Yanmar
Model
?
HP
18
Fuel Type
Diesel
Fuel Capacity
?

Accomodations

Water Capacity
30 gal / 114 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
7.09 knots
Sail Area/Displacement
22.25
high performance
Ballast/Displacement
39.26
less stiff, less powerful
Displacement/Length
164.73
light
Comfort Ratio
17.21
lightweight racing boat
Capsize Screening
2.19
better suited for coastal cruising

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