The Irwin 1/2 Ton Mk II represents a pivotal era in American sailboat design, emerging from the mid-1970s as a production-line answer to the International Offshore Rule (IOR) racing scene. Designed by Ted Irwin, this model was specifically engineered to compete in the Half Ton class, a category that demanded a delicate balance of speed, rating optimization, and structural integrity. Unlike pure racing machines of the time, the Mk II was marketed as a dual-purpose vessel, blending the aggressive performance of a regatta contender with the functional amenities required for coastal cruising. The boat's evolution from the original 1/2 Ton (Mk I) involved refinements to the deck layout and ballast configuration to maximize its competitive edge under the evolving IOR handicapping system.
Irwin 1/2 Ton Mk II Sailboats for Sale & Market Overview
- Make
- Irwin
- Model
- 1/2 Ton Mk II
- Builder
- Irwin Yachts
- Designer
- Ted Irwin
- Number Built
- Production Year(s)
- 1977 - ??
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| Source | Year | Make | Model | Price | Cabins | Heads | City | Country | Listing Date | |
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