Irwin 37 mark 1

The Irwin 37 mark 1 is a 37.01ft masthead sloop designed by Ted Irwin and built in fiberglass by Irwin Yachts between 1972 and 1975.

It accomodates 5 people in 2 cabins plus salon.

The Irwin 37 mark 1 is a moderate weight sailboat which is a reasonably good performer. It is very stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser. The fuel capacity is average. There is a short water supply range.

Irwin 37 mark 1 for sale elsewhere on the web:

Main features

Model Irwin 37 mark 1
Length 37.01 ft
Beam 11.68 ft
Draft 6.30 ft
Country United states (North America)
Estimated price $ 20000

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Sail area / displ. 16.29
Ballast / displ. 47.40 %
Displ. / length 254.63
Comfort ratio 28.11
Capsize 1.88


Hull type Monohull long keel with rudder on skeg
Construction Fiberglass
Waterline length 29.99 ft
Maximum draft 6.30 ft
Displacement 15388.25 lbs
Ballast 7297.29 lbs
Hull speed 7.34 knots

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Rigging Masthead Sloop
Sail area (100%) 627.97 sq.ft
Air draft 0 ft ??
Sail area fore 376.84 sq.ft
Sail area main 250.80 sq.ft
I 48 ft
J 15.72 ft
P 42.49 ft
E 11.81 ft


Nb engines 1
Total power 30 HP
Fuel capacity 80 gals


Water capacity 50 gals
Headroom 0 ft
Nb of cabins 2
Nb of berths 5
Nb heads 2

Builder data

Builder Irwin Yachts
Designer Ted Irwin
First built 1972
Last built 1975
Number built 0 ??