IRWIN 37-1

IRWIN 37-1 drawing

Sailboat Specifications


Hull Type:
Fin with rudder on skeg
Rigging Type:
Masthead Sloop
LOA:
37.00 ft / 11.28 m
LWL:
30.00 ft / 9.14 m
Beam:
11.50 ft / 3.51 m
S.A. (reported):
558.00 ft2 / 51.84 m2
Draft (max):
5.50 ft / 1.68 m
Draft (min):
Displacement:
18,000 lb / 8,165 kg
Ballast:
6,700 lb / 3,039 kg
S.A./Disp.:
13.05
Bal./Disp.:
37.22
Disp./Len.:
297.62
Construction:
FG
Ballast Type:
First Built:
1971
Last Built:
1975
# Built:
Builder:
Irwin Yachts (USA)
Designer:
Ted Irwin
Website:

Auxiliary Power/Tanks (orig. equip.)

Make:
Perkins
Model:
4-107
Type:
Diesel
HP:
40
Water:
50 gals / 189 L
Fuel:
80 gals / 303 L

Sailboat Calculations

S.A./Disp.:
13.05
Bal./Disp.:
37.22
Disp./Len.:
297.62
Comfort Ratio:
33.51
Capsize Screening Formula:
1.76

Rig and Sail Particulars

I:
42.00 ft / 12.80 m
J:
14.33 ft / 4.37 m
P:
35.50 ft / 10.82 m
E:
14.50 ft / 4.42 m
SPL/TPS:
ISP:
S.A. Fore:
300.93 ft2 / 27.96 m2
S.A. Main:
257.38 ft2 / 23.91 m2
S.A. Total (100% Fore + Main Triangles)
558.31 ft2 / 51.87 m2
S.A./Disp. (calc.):
13.05
Est. Forestay Len.:
44.38 ft / 13.53 m

Sailboat Links

Designers:
Builders:
Associations:
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Notes

The IRWIN 37 was promoted as a no compromise cruising boat.
Introduced in 1971 it was one of this builders most successful models though undergoing numerous changes until production ended in 1982. It's been said that nearly nearly 600 were sold.
Available as sloop, cutter or ketch.
KEEL OPTIONS:
Shoal draft fixed keel: 4.92'
Keel/cb version: (draft: 4.0' board up)
Also available with a 50 HP Perkins 4-108
****************************************************
IRWIN 37-2 (1976 - bowsprit added which continued for all remaining models.)
IRWIN 37-3
IRWIN 37-4 (1977)
IRWIN 37-5 (1982 last model year).

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