Built during the 1970s and early 1980s, this Canadian-designed cruiser emerged from Grampian Marine's lineup as a practical coastal sailing yacht aimed at the growing recreational boating market. The Classic 31 represents the builder's focus on creating affordable yet seaworthy vessels for weekend cruising and extended coastal passages. Featuring traditional lines with a moderate beam and fin keel configuration, the design emphasizes stability and ease of handling over pure performance. The boat's solid fiberglass construction reflects the building standards of its era, prioritizing durability and low maintenance for owner-operators. Below deck, the layout typically maximizes living space within the hull's dimensions, offering comfortable accommodations for a small crew on extended cruises. While not renowned as a racing thoroughbred, the Classic 31 earned respect among cruising sailors for its predictable handling characteristics and seaworthiness in coastal waters. The design strikes a practical balance between sailing performance and comfort, making it well-suited for Great Lakes sailing, coastal cruising, and as an entry point into serious sailboat ownership. Today, these boats represent solid value in the used market for sailors seeking a capable cruising platform with proven offshore credentials.
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What is the Grampian Classic 31's sail area to displacement ratio?
The Grampian Classic 31 has a Sail Area to Displacement ratio (SA/D) of 15.51. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Grampian Classic 31's comfort ratio?
The Grampian Classic 31 has a Ted Brewer Comfort Ratio of 35.46. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Grampian Classic 31 safe for offshore sailing?
The Grampian Classic 31 has a Capsize Screening Formula value of 1.58. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Grampian Classic 31?
The theoretical hull speed of the Grampian Classic 31 is 6.33 knots, calculated from its waterline length.
How much does a Grampian Classic 31 weigh?
The Grampian Classic 31 has a displacement of 9,722.00 lb and a length overall (LOA) of 30.92 ft.
Who designed the Grampian Classic 31?
The Grampian Classic 31 was designed by Peter Van Dine, first built in 1964.