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Sailboat

Allied Seawind

1962 — 1982

Allied Seawind is a 30.50 ft / 9.30 m sailboat designed by Thomas Gillmer and built by Allied Boat Company Inc. (USA) between 1962 and 1982.

Designer
Thomas Gillmer
Builder
Allied Boat Company Inc.
Hull Type
Long keel w/trans. hung rudder
Construction
FG

Dimensions

Length Overall
30.50 ft / 9.30 m
Waterline Length
24.00 ft / 7.32 m
Beam
9.25 ft / 2.82 m
Draft
4.20 ft / 1.28 m
Displacement
12,000 lb / 5,443 kg
Ballast
4,200 lb / 1,905 kg
Ballast Type
?
drawing
photo
drawing

Rig and Sails

Type
Masthead Ketch
Reported Sail Area
502.00 ft2 / 46.64 m2
Total Sail Area
424.82 ft2 / 39.47 m2
Mainsail
Sail Area
206.90 ft2 / 19.22 m2
P
31.83 ft / 9.70 m
E
13.00 ft / 3.96 m
Mast Height
Foresail
Sail Area
217.93 ft2 / 20.25 m2
I
35.58 ft / 10.84 m
J
12.25 ft / 3.73 m
Est. Forestay Len.
37.63 ft / 11.47 m
Mizzen
PY
18.16 ft / 5.54 m
EY
8.50 ft / 2.59 m

Auxilary Power

Make
Palmer /Gray Marine
Model
M-60
HP
?
Type
Gas
Fuel Capacity
12 gals / 45 L

Accomodations

Water Capacity
30 gals / 114 L

Calculations

Hull Speed
6.56 knots
Sail Area/Displacement
15.32
under powered
Ballast/Displacement
35
less stiff, less powerful
Displacement/Length
387.52
ultraheavy
Comfort Ratio
36.67
moderate bluewater cruising boat
Capsize Screening
1.62
better suited for ocean passages

Notes

Originally designed for Kaiser Gale Force Yachts which sold the molds to Allied Boat Co. After changing the cabin top and port arrangement, the first boat appeared in 1962.
Early builders under contract were Lunn Laminates of Port Washington, NY and F.L. Tripp & Sons, Westport, MA.
(Allied eventually had it’s own large plant in the Catskills, NY.)
The SEAWIND was the first, as well as one of the last, boats built by Allied Boat Company. In 1978 it was brought back into production and actually built simultaneously with the newer SEAWIND II.
Also offered with a sloop rig. (with mast stepped farther aft.)
I: 35.58’/10.84m
J: 13.16’/4.01m
P: 31.83’/9.70m
E: 14.25’/4.34m

Suggest Improvements
Source: sailboatdata.com / CC BY

Related Sailboats

drawing
Allied Seawind MK II Ketch
1975 • 31.58 ft / 9.63 m

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