IRWIN 10/4

Main

Appendages
Keel/CB & spade rudder
Construction
FG
First built hull
1975
Hull type
Monohull
Last built hull
1982
Model
IRWIN 10/4
Sailboat builder
Irwin Yacht & Marine Corporation
Sailboat designer
Ted Irwin

Dimensions

Ballast weight
907.0
Beam
3.15
Displacement
3175.0
Draft
2.03
Max Draft
2.03
Min Draft
0.84
Overall length
7.72
Waterline length
6.65

Sails

E
3.73
Est. Forestay Length
11.28
Fore area
19.51
I
10.67
J
3.66
Mainsail area
17.16
P
9.19
Total area
36.79

Engine

Performance

Ballast ratio
28.57
Capsize Screening Formula
2.16
Comfort Ratio
21.09
Critical hull speed
6.26
Displacement-length ratio (DLR)
300.39
Upwind sail area to displacement
17.37

Accomodation

The IRWIN 10/4 is a sailing boat manufactured by the American company, Irwin Yachts. It is a 10-meter (33-foot) long vessel designed for cruising and racing purposes. Here are some key features and characteristics of the IRWIN 10/4:

1. Design: The IRWIN 10/4 features a sleek and modern design with a fin keel and a spade rudder. It has a moderate displacement hull, which allows for good stability and performance.

2. Construction: The boat is constructed using fiberglass, which provides durability and strength. The hull and deck are typically made of hand-laid fiberglass, ensuring a solid and reliable structure.

3. Interior: The interior of the IRWIN 10/4 is designed to maximize comfort and functionality. It usually includes a main saloon with a dining area, a galley (kitchen), a head (bathroom), and sleeping accommodations for a small crew.

4. Sailing Performance: The IRWIN 10/4 is known for its good sailing performance. It has a tall mast and a large sail area, allowing for efficient sailing in various wind conditions. The boat is designed to be easily handled by a small crew, making it suitable for both experienced sailors and beginners.

5. Accommodations: Despite its compact size, the IRWIN 10/4 offers comfortable accommodations for overnight stays or longer trips. It typically has berths for up to six people, allowing for a small crew or a family to enjoy extended cruising.

6. Rigging: The boat is equipped with a sloop rig, which consists of a single mast and a mainsail, along with a headsail (usually a genoa or jib). The rigging is designed to be easily adjusted and controlled, enabling efficient sailing and maneuvering.

7. Performance Features: The IRWIN 10/4 incorporates various performance features, such as a deep fin keel and a spade rudder, which enhance stability and maneuverability. It also has a balanced sail plan, allowing for good upwind and downwind performance.

8. Production and Availability: The IRWIN 10/4 was produced by Irwin Yachts during the 1970s and 1980s. While it is no longer in production, used models can still be found on the market.

Overall, the IRWIN 10/4 is a versatile sailing boat that offers a combination of comfort, performance, and ease of handling. It is suitable for both cruising and racing enthusiasts, providing an enjoyable sailing experience.

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