IRWIN 37-4

Main

Appendages
Fin with rudder on skeg
Construction
FG
First built hull
1977
Hull type
Monohull
Last built hull
1982
Model
IRWIN 37-4
Sailboat builder
Irwin Yachts
Sailboat designer
Ted Irwin

Dimensions

Ballast weight
3039.0
Beam
3.51
Displacement
9072.0
Draft
1.68
Max Draft
1.68
Overall length
11.28
Waterline length
9.14

Sails

E
4.45
Est. Forestay Length
13.87
Fore area
34.14
I
12.8
J
5.33
Mainsail area
24.14
P
10.85
Total area
58.25

Engine

Fuel tank capacity
208.0
Fuel type
Diesel
Make
Perkins

Performance

Ballast ratio
33.5
Capsize Screening Formula
1.7
Comfort Ratio
37.23
Critical hull speed
7.34
Displacement-length ratio (DLR)
330.69
Upwind sail area to displacement
13.67

Accomodation

Freshwater tank capacity
708
The IRWIN 37-4 is a popular sailing boat that was manufactured by the American company, Irwin Yachts, in the 1970s. It is a cruising sailboat known for its spaciousness, comfort, and solid construction.

Here are some key features and specifications of the IRWIN 37-4:

1. Design: The IRWIN 37-4 was designed by Ted Irwin, a renowned naval architect. It features a classic, timeless design with a moderate displacement hull and a fin keel.

2. Dimensions: The boat has an overall length of 37 feet and a beam (width) of 11 feet, providing ample space for living and sailing comfortably.

3. Accommodation: The IRWIN 37-4 offers a spacious interior layout with a large saloon, a well-equipped galley, and multiple berths. It typically has two private cabins, including a forward V-berth and an aft cabin, along with a convertible dinette in the saloon. The boat can comfortably accommodate up to six people.

4. Construction: The hull of the IRWIN 37-4 is typically made of solid fiberglass, ensuring durability and strength. The deck is also constructed using fiberglass, providing a sturdy and low-maintenance surface.

5. Sailing Performance: The IRWIN 37-4 is known for its good sailing performance, offering a balanced combination of speed and stability. It has a moderate sail area and a well-balanced rig, making it suitable for both cruising and occasional racing.

6. Rigging: The boat features a sloop rig with a single mast and a roller furling headsail. The rigging is typically made of stainless steel, ensuring strength and reliability.

7. Engine: The IRWIN 37-4 is usually equipped with a diesel engine, providing sufficient power for propulsion and auxiliary purposes.

8. Storage and Tankage: The boat offers ample storage space, including lockers, cabinets, and compartments throughout the interior. It also has a decent fuel and water tank capacity, allowing for extended cruising.

Overall, the IRWIN 37-4 is a well-regarded cruising sailboat that offers a comfortable and spacious interior, solid construction, and good sailing performance. It is a popular choice among sailors looking for a reliable and versatile vessel for coastal or offshore cruising.

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