Built during the height of the fiberglass production boat boom, this substantial cruising sailboat emerged from Irwin Yachts' Florida facility as part of their growing fleet of family-oriented designs. The 43-footer represents the builder's commitment to creating spacious, comfortable vessels for coastal and offshore cruising adventures. Irwin established a reputation for building solid, practical sailboats that prioritized livability and ease of handling over racing performance. The moderate displacement hull design typical of the era provides stable, predictable sailing characteristics that appeal to cruising sailors seeking comfort over speed. The boat's generous beam creates expansive interior volume, making it well-suited for extended cruising or liveaboard use. While documentation from this vintage remains limited, the design reflects classic early 1970s styling with traditional lines and practical deck layout. The substantial construction methods employed by Irwin during this period have allowed many examples to remain seaworthy decades later. This model would appeal to sailors seeking a proven platform for coastal exploration or protected offshore passages, particularly those who value interior space and comfort over cutting-edge sailing performance.
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What is the Irwin 43 1971's sail area to displacement ratio?
The Irwin 43 1971 has a Sail Area to Displacement ratio (SA/D) of 17.32. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Irwin 43 1971's comfort ratio?
The Irwin 43 1971 has a Ted Brewer Comfort Ratio of 38.77. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Irwin 43 1971 safe for offshore sailing?
The Irwin 43 1971 has a Capsize Screening Formula value of 1.62. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Irwin 43 1971?
The theoretical hull speed of the Irwin 43 1971 is 7.58 knots, calculated from its waterline length.
How much does a Irwin 43 1971 weigh?
The Irwin 43 1971 has a displacement of 23,000.00 lb and a length overall (LOA) of 43.50 ft.
Who designed the Irwin 43 1971?
The Irwin 43 1971 was designed by Ted Irwin, first built in 1971.