⛵ Sailboat DB

IRWIN 37-1

Masthead Sloop • Fin with rudder on skeg • Built 1971–1975

drawing

Dimensions

LOA
37 ft
LWL
30 ft
Beam
11.5 ft
Max Draft
5.5 ft
Displacement
18,000 lbs
Ballast
6,700 lbs

Performance Ratios

Capsize Ratio ⓘ
1.75 (offshore safe)
SA/D Ratio ⓘ
13.0
D/L Ratio ⓘ
298
Ballast Ratio ⓘ
37.2%

Sail Plan

Sail Area
558 sq ft
I
42 ft
J
14.33 ft
P
35.5 ft
E
14.5 ft

Construction

Hull Type
Fin with rudder on skeg
Rig Type
Masthead Sloop
Hull Material
FG
Ballast Type

Production

First Built
1971
Last Built
1975
Number Built

Engine & Accommodations

Engine Make
Perkins
Engine Model
4-107
Power
40 hp
Engine Type
Diesel
Water
50 gal
Fuel
80 gal
Notes: The IRWIN 37 was promoted as a no compromise cruising boat. \nIntroduced 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.\nAvailable as sloop, cutter or ketch. \nKEEL OPTIONS:\nShoal draft fixed keel: 4.92'\nKeel/cb version: (draft: 4.0' board up)\nAlso available with a 50 HP Perkins 4-108\n****************************************************\nIRWIN 37-2 (1976 - bowsprit added which continued for all remaining models.)\nIRWIN 37-3 \nIRWIN 37-4 (1977)\nIRWIN 37-5 (1982 last model year).\n

Designer

Builder

Related Boats

Name LOA (ft) Year Rig
IRWIN 37-3 37 1976 Cutter
IRWIN 37-5 37 1982 Cutter