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Sailboat Specifications

Irwin 37 Competition

Masthead Sloop · Fin W/Spade Rudder

Designed by Ted Irwin · Built by Irwin Yachts (Usa) · First built 1973

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LOA 37.00 ft  ·  Beam 11.67 ft  ·  Displacement 15,500.00 lb  ·  Sail Area 628.00 ft²  ·  Masthead Sloop  ·  Fin W/Spade Rudder
About the Irwin 37 Competition Sailboat

Designed by Ted Irwin and first launched in 1973, this 37-footer represents a thoughtful balance between performance and practical cruising capabilities. The Competition variant lives up to its name with a relatively light displacement of 15,500 pounds and generous sail area of 628 square feet, delivering a respectable sail area-to-displacement ratio that favors spirited sailing in moderate conditions. The fin keel and spade rudder configuration provides responsive handling and good pointing ability, while the masthead sloop rig keeps things simple and efficient. With nearly half its weight in ballast, the boat offers reassuring stability for coastal cruising and club racing. The comfortable beam of 11.67 feet provides reasonable interior volume without compromising the sleek lines that contribute to a theoretical hull speed of 7.34 knots. Built during Irwin Yachts' productive era, these boats gained a reputation as solid performers that could handle both weekend racing and extended coastal passages. The low comfort ratio of 28.29 suggests this is more performance-oriented than some contemporary cruisers, while the capsize screening value of 1.88 indicates good stability characteristics. For sailors seeking a versatile platform capable of competitive sailing and comfortable cruising in protected and near-offshore waters, the Irwin 37 Competition offers proven seaworthiness with spirited performance.

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Dimensions & Specifications
LOA (Length Overall) 37.00 ft / 11.28 m
LWL (Waterline Length) 30.00 ft / 9.14 m
Beam 11.67 ft / 3.56 m
Max Draft 6.25 ft / 1.91 m
Displacement 15,500.00 lb / 7,031 kg
Ballast 7,500.00 lb / 3,402 kg
Sail Area (Reported) 628.00 ft² / 58.34 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Ted Irwin
Builder Irwin Yachts (USA)
First Built 1973
Associations Irwin Facebook Group
Related Sailboats Carter 37 1 Ton · Soverel 37 · Tartan 37 · C&C 37 · Irwin 37 1
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Engine & Accommodations
Engine Make Perkins
Engine Model D108
Engine Type Diesel
Fuel Capacity 30 gals / 114 L
Water Capacity 40 gals / 151 L
Frequently Asked Questions

What is the Irwin 37 Competition's sail area to displacement ratio?

The Irwin 37 Competition has a Sail Area to Displacement ratio (SA/D) of 16.22. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Irwin 37 Competition's comfort ratio?

The Irwin 37 Competition has a Ted Brewer Comfort Ratio of 28.29. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Irwin 37 Competition safe for offshore sailing?

The Irwin 37 Competition has a Capsize Screening Formula value of 1.88. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Irwin 37 Competition?

The theoretical hull speed of the Irwin 37 Competition is 7.34 kn knots, calculated from its waterline length.

How much does a Irwin 37 Competition weigh?

The Irwin 37 Competition has a displacement of 15,500.00 lb and a length overall (LOA) of 37.00 ft.

Who designed the Irwin 37 Competition?

The Irwin 37 Competition was designed by Ted Irwin, first built in 1973.