Irwin 34 Citation

1979 — 1985
Designer
Ted Irwin
Builder
Irwin Yachts
Association
Irwin Yacht Owners
# Built
300
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
34 3 / 10.4 m
Waterline Length
27 3 / 8.3 m
Beam
11 3 / 3.4 m
Draft
5 3 / 1.6 m
Displacement
11,500 lbs / 5,216 kg
Ballast
4,100 lbs / 1,860 kg
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
538 ft2 / 50 m2
Total Sail Area
538.5 ft2 / 50 m2
Mainsail
Sail Area
249.7 ft2 / 23.2 m2
P
37 0 / 11.3 m
E
13 5 / 4.1 m
Mast Height
46 1 / 14.1 m
Foresail
Sail Area
288.8 ft2 / 26.8 m2
I
41 11 / 12.8 m
J
13 8 / 4.2 m
Forestay Length
44 2 / 13.5 m

Auxilary Power

Make
Yanmar
Model
3GMF
HP
?
Fuel Type
Diesel
Fuel Capacity
30 gal / 114 l

Accomodations

Water Capacity
80 gal / 303 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
7.01 knots
Sail Area/Displacement
16.9
good performance
Ballast/Displacement
35.65
less stiff, less powerful
Displacement/Length
251.5
moderate
Comfort Ratio
23.89
coastal cruiser
Capsize Screening
1.99
better suited for ocean passages

Notes

Shoal draft: 4.0’
Draft keel/cb - BU:4.0’/BD: 8.1’

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