Irwin 43-CC Mk Iii Information, Review, Specs

History and Design

The Irwin 43-CC Mk III entered production in 1986, reflecting the evolution of a successful design from Irwin Yachts. Ted Irwin, a designer known for his diverse approach, focused a significant portion of his output on creating comfortable and practical yachts for the burgeoning Caribbean yacht charter market and extended cruising, a philosophy clearly evident in the 43-CC Mk III. During this era, Irwin Yachts, based in St. Petersburg, Florida, was a major producer of fiberglass sailboats in the United States, utilizing robust fiberglass construction for its hulls and decks. The "Mk III" designation indicates a refinement over previous versions, with the Irwin 43-CC Mk II preceding it. These evolutions typically involved updates to systems, interior layouts, and minor hull or rig adjustments based on feedback and advancements in marine technology. The cutter rig, which is a feature of this model, is often chosen for offshore sailing due to its ability to break down the total sail area into smaller, more manageable sails.

Sailing Performance and Handling

With a length overall of 45.5 feet and a waterline length of 35.5 feet, the Irwin 43-CC Mk III offers a hull designed for comfortable passage making. Its displacement of 26,000 pounds gives it a Displacement to Length (D/L) ratio of approximately 260, placing it in the moderate to heavy displacement category. This characteristic typically translates to a more comfortable motion in a seaway and good momentum, rather than outright speed. The Sail Area to Displacement (SA/D) ratio of approximately 17.6 suggests a moderate performer, capable of handling light to moderate winds effectively for a cruising boat, without being overly demanding in heavy air.

The vessel's ballast, at 7,000 pounds of lead in a wing keel, contributes to its stability. While the Ballast to Displacement ratio of around 0.269 is lower than that of some dedicated performance boats, the Irwin 43-CC Mk III is described as "reasonably stable / stiff and has a good righting capability". This combination of moderate displacement, a cutter rig, and a wing keel, paired with a hull speed of 7.98 knots, allows the 43-CC Mk III to be a capable and predictable performer, well-suited for its intended purpose of comfortable, long-distance cruising. Owners generally find it to be a forgiving and well-balanced boat to handle.

Accommodations and Layout

The Irwin 43-CC Mk III is renowned for its generous interior volume and practical layout, designed for extended periods aboard. The center cockpit configuration allows for a spacious aft cabin, a key feature for many cruisers. The typical layout boasts a two-cabin, two-head arrangement, providing excellent privacy and comfort for owners and guests. The large aft owner's stateroom is a significant draw, often featuring a private head. Forward, there are guest quarters, also equipped with a separate head.

While specific headroom figures are not consistently available, the boat's design and overall length strongly suggest ample standing headroom throughout the main living areas. The interior typically features a well-appointed salon, a functional galley capable of supporting extended voyages, and often ample storage space, aligning with Ted Irwin's emphasis on livability. The substantial freshwater capacity of 180 gallons and fuel capacity of 105 gallons further underscore its design for self-sufficiency during long cruises.

Owner's Perspectives

Owners of the Irwin 43-CC Mk III consistently praise its capabilities as a comfortable and robust cruising platform. Many appreciate its solid construction and its ability to handle various sea states with a comfortable motion. The spacious center cockpit design and the two-cabin, two-head layout are frequently highlighted as major advantages, making it an excellent choice for couples or families planning extended liveaboard or long-distance voyages. The generous tankage for fuel and water is also a commonly cited strength, enhancing its autonomy for remote cruising.

As with any vessel of its age, potential buyers and current owners note a few recurring considerations. While the boats are generally well-built, some original deck fittings may eventually require re-bedding to prevent leaks. Maintenance of older systems, such as exhaust hoses, is also a periodic task mentioned by owners. However, the active community of Irwin owners provides valuable support and resources, indicating the enduring appeal and practicality of these vessels as accessible and capable cruising yachts, 3].