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Sailboat Specifications

Irwin 12 Ton Mkii

Masthead Sloop · Lifting Keel

Designed by Ted Irwin · Built by Irwin Yacht & Marine Corporation · First built 1977

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LOA 32.00 ft  ·  Beam 11.33 ft  ·  Displacement 7,300.00 lb  ·  Sail Area 412.00 ft²  ·  Masthead Sloop  ·  Lifting Keel
About the Irwin 12 Ton Mkii Sailboat

Pacific Seacraft's acquisition of the Irwin Yachts legacy brought several noteworthy designs into their catalog, including this substantial cruising sailboat that represents the evolution of Ted Irwin's design philosophy. Building on the foundation established by earlier Irwin models, this Mark II version incorporated refinements aimed at improving both comfort and sailing performance. The design reflects the classic American cruising boat aesthetic of its era, with emphasis placed on interior volume and seaworthiness rather than racing performance. Like other Irwin designs, this model was conceived primarily for coastal and offshore cruising, offering the kind of sturdy construction and generous accommodations that appeal to live-aboard sailors and extended cruise enthusiasts. Ted Irwin's reputation for creating practical, well-built cruising boats is evident in this design's approach to balancing comfort with sailing ability. The boat's substantial displacement and traditional lines suggest it would perform well in a variety of conditions, particularly excelling in the moderate to heavy air where heavier cruising boats typically shine. For sailors seeking a proven platform for serious coastal cruising or offshore passage-making, this represents the kind of time-tested design philosophy that has served countless cruising sailors well.

Dimensions & Specifications
LOA (Length Overall) 32.00 ft / 9.75 m
LWL (Waterline Length) 24.42 ft / 7.44 m
Beam 11.33 ft / 3.45 m
Max Draft 6.50 ft / 1.98 m
Min Draft 3.50 ft / 1.07 m
Displacement 7,300.00 lb / 3,311 kg
Ballast 3,500.00 lb / 1,588 kg
Sail Area (Reported) 412.00 ft² / 38.28 m²
Design & Construction
Hull Type Lifting Keel
Rigging Type Masthead Sloop
Construction FG
Designer Ted Irwin
Builder Irwin Yacht & Marine Corporation
First Built 1977
Related Sailboats Irwin 12 Ton · Ontario 32 · Downeaster 32 · Gulf 32 · Morgan 32 23
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Engine & Accommodations
Horsepower 12
Fuel Capacity 14
Water Capacity 28
Frequently Asked Questions

What is the Irwin 12 Ton Mkii's sail area to displacement ratio?

The Irwin 12 Ton Mkii has a Sail Area to Displacement ratio (SA/D) of 17.57. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Irwin 12 Ton Mkii's comfort ratio?

The Irwin 12 Ton Mkii has a Ted Brewer Comfort Ratio of 16.67. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Irwin 12 Ton Mkii safe for offshore sailing?

The Irwin 12 Ton Mkii has a Capsize Screening Formula value of 2.34. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Irwin 12 Ton Mkii?

The theoretical hull speed of the Irwin 12 Ton Mkii is 6.62 knots, calculated from its waterline length.

How much does a Irwin 12 Ton Mkii weigh?

The Irwin 12 Ton Mkii has a displacement of 7,300.00 lb and a length overall (LOA) of 32.00 ft.

Who designed the Irwin 12 Ton Mkii?

The Irwin 12 Ton Mkii was designed by Ted Irwin, first built in 1977.