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Sailboat Specifications

Irwin 30 Competition

Masthead Sloop · Fin With Rudder On Skeg

Designed by Ted Irwin · Built by Irwin Yachts (Usa) · First built 1972

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LOA 30.00 ft  ·  Beam 10.17 ft  ·  Displacement 10,000.00 lb  ·  Sail Area 474.00 ft²  ·  Masthead Sloop  ·  Fin With Rudder On Skeg
About the Irwin 30 Competition Sailboat

Designed by Ted Irwin and first launched in 1972, this 30-footer represents a notable entry in the competitive sailing market of the early 1970s. Built by Irwin Yachts in fiberglass construction, the Competition model lives up to its name with a purposeful design focused on performance sailing. The boat's fin keel configuration with rudder mounted on a skeg provides excellent directional stability while maintaining good maneuverability. With a displacement of 10,000 pounds and substantial ballast of 4,600 pounds, nearly half the boat's weight is positioned low for enhanced stability. The masthead sloop rig carries 474 square feet of sail area, delivering a sail area-to-displacement ratio of 16.39 that indicates spirited performance potential. At 30 feet overall with a waterline length approaching 27 feet, the Competition offers a good balance of interior space and sailing capability. The comfort ratio of 25.27 suggests this boat favors performance over pure comfort, making it well-suited for coastal racing, spirited day sailing, and competitive events. The capsize screening formula of 1.89 indicates reasonable offshore capability for experienced sailors, though the boat truly excels in protected waters where its racing-oriented design can shine.

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Dimensions & Specifications
LOA (Length Overall) 30.00 ft / 9.14 m
LWL (Waterline Length) 26.92 ft / 8.21 m
Beam 10.17 ft / 3.10 m
Max Draft 5.33 ft / 1.62 m
Displacement 10,000.00 lb / 4,536 kg
Ballast 4,600.00 lb / 2,087 kg
Sail Area (Reported) 474.00 ft² / 44.04 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Ted Irwin
Builder Irwin Yachts (USA)
First Built 1972
Associations Half Ton Class
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Engine & Accommodations
Engine Make Universal
Engine Model Atomic 4
Engine Type Gas
Fuel Capacity 20 gals / 76 L
Water Capacity 50 gals / 189 L
Frequently Asked Questions

What is the Irwin 30 Competition's sail area to displacement ratio?

The Irwin 30 Competition has a Sail Area to Displacement ratio (SA/D) of 16.39. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Irwin 30 Competition's comfort ratio?

The Irwin 30 Competition has a Ted Brewer Comfort Ratio of 25.27. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Irwin 30 Competition safe for offshore sailing?

The Irwin 30 Competition has a Capsize Screening Formula value of 1.89. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Irwin 30 Competition?

The theoretical hull speed of the Irwin 30 Competition is 6.95 kn knots, calculated from its waterline length.

How much does a Irwin 30 Competition weigh?

The Irwin 30 Competition has a displacement of 10,000.00 lb and a length overall (LOA) of 30.00 ft.

Who designed the Irwin 30 Competition?

The Irwin 30 Competition was designed by Ted Irwin, first built in 1972.