Columbia 9.6

1975 — 1979
insignia
Designer
Alan Payne
Builder
Columbia Yachts
Association
Half Ton Class
# Built
150
Hull Type
Fin with rudder on skeg
Construction
FG

Dimensions

Length Overall
31 5 / 9.6 m
Waterline Length
23 9 / 7.2 m
Beam
10 2 / 3.1 m
Draft
5 6 / 1.7 m
Displacement
10,200 lbs / 4,627 kg
Ballast
4,500 lbs / 2,041 kg
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
457 ft2 / 42.5 m2
Total Sail Area
456.9 ft2 / 42.5 m2
Mainsail
Sail Area
193 ft2 / 17.9 m2
P
35 1 / 10.7 m
E
10 11 / 3.4 m
Mast Height
?
Foresail
Sail Area
264 ft2 / 24.5 m2
I
40 1 / 12.2 m
J
13 1 / 4 m
Forestay Length
42 3 / 12.9 m

Auxilary Power

Make
Volvo
Model
MD7A
HP
?
Fuel Type
Diesel
Fuel Capacity
20 gal / 76 l

Accomodations

Water Capacity
40 gal / 151 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.53 knots
Sail Area/Displacement
15.55
under powered
Ballast/Displacement
44.12
stiffer, more powerful
Displacement/Length
339.91
heavy
Comfort Ratio
27.33
coastal cruiser
Capsize Screening
1.88
better suited for ocean passages

Notes

Designed to rate at the half ton level under the IOR rule.
Another version was finished by Kettenburg Yachts and called the KETTENBURG 32. Kettenburg had recently been purchased by Columbia’s parent company, Whittaker Corp.


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