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Sailboat

Island Packet 31

1983 — 1989
Designer
Robert K. Johnson
Builder
Island Packet Yachts
Hull Type
Long Keel
Construction
FG
Associations
Island Packet Yacht Owners

Dimensions

Length Overall
31.00 ft / 9.45 m
Waterline Length
27.75 ft / 8.46 m
Beam
11.60 ft / 3.54 m
Draft
4.00 ft / 1.22 m
Displacement
11,000 lb / 4,990 kg
Ballast
4,500 lb / 2,041 kg
Ballast Type
?
drawing

Rig and Sails

Type
Cutter
Reported Sail Area
530.00 ft2 / 49.24 m2
Total Sail Area
530.30 ft2 / 49.27 m2
Mainsail
Sail Area
238.00 ft2 / 22.11 m2
P
34.00 ft / 10.36 m
E
14.00 ft / 4.27 m
Mast Height
Foresail
Sail Area
292.30 ft2 / 27.16 m2
I
39.50 ft / 12.04 m
J
14.80 ft / 4.51 m
Est. Forestay Len.
42.18 ft / 12.86 m
Mizzen
PY
EY

Auxilary Power

Make
?
Model
?
HP
27
Type
Diesel
Fuel Capacity
25 gals / 95 L

Accomodations

Water Capacity
70 gals / 265 L

Calculations

Hull Speed
7.06 knots
Sail Area/Displacement
17.14
good performance
Ballast/Displacement
40.91
stiffer, more powerful
Displacement/Length
229.8
moderate
Comfort Ratio
22.45
coastal cruiser
Capsize Screening
2.09
better suited for coastal cruising

Notes

Keel/CB also available.
Draft - BU: 3.0’/BD: 7.0’


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