Herreshoff 31 (Cat Ketch 31) Information, Review, Specs

History and Design

The genesis of the Herreshoff 31 lies in the vision of John Newton, founder of the Cat Ketch Corporation, who aimed to create straightforward yet gratifying cruising yachts. Established in the late 1970s, Cat Ketch Corporation, with production initially overseen in Honduras, collaborated with Halsey Herreshoff, a third-generation scion of the esteemed Herreshoff family of naval architects. Herreshoff’s designs became the hallmark of the company's offerings, emphasizing open interior layouts and ease of handling. The Herreshoff 31 was first built in 1979 and continued production until 1986.

Halsey Herreshoff's design philosophy for the cat-ketch rig focused on creating vessels that were easily managed, often requiring fewer winches than more complex rigs, while still delivering satisfying sailing performance. While the Herreshoff 31 was primarily constructed from fiberglass, some early models by Cat Ketch Corporation featured laminated wooden spars. The company's focus remained on fiberglass monohulls, and while the Herreshoff 31 saw no significant variations like MkI or MkII designations, its enduring design maintained consistency throughout its production run.

Sailing Performance and Handling

With a sail area to displacement ratio (SA/D) of approximately 16.37, the Herreshoff 31 exhibits moderate performance characteristics. This ratio suggests a boat that is neither overly sluggish in light air nor an extreme light-wind flyer, aiming for a balanced performance suitable for cruising. Its ballast to displacement ratio (B/D) of around 0.44 indicates a high degree of initial stiffness and stability, allowing the boat to stand up well to a breeze and provide a comfortable motion in a seaway. The displacement to length ratio (D/L) of approximately 154.8 places the Herreshoff 31 in a relatively lighter displacement category for its length, suggesting a more nimble and responsive vessel compared to heavier, more traditional cruisers.

Owners and reviewers have noted that the Herreshoff 31 sails "like a dream" and is generally praised for its ease of handling, a direct benefit of its distinctive unstayed cat-ketch rig. The ability to manage heavy air is typically achieved through a progressive reefing strategy, starting with the mizzen and then the main. Its fin keel with a transom-hung rudder contributes to its maneuverability. This combination of design elements makes it a forgiving boat, particularly appealing to cruisers seeking simplified sailing.

Accommodations and Layout

The interior of the Herreshoff 31 prioritizes open space, a characteristic design approach by Halsey Herreshoff for Cat Ketch Corporation boats. The standard layout typically features an expansive saloon/forecabin area forward, with the head and galley situated aft. This arrangement provides a feeling of openness, which is often appreciated in boats of this size. While specific headroom details are not consistently available, the design emphasizes comfortable accommodation for cruising.

Online reviews and owner discussions highlight the general finish quality, often praising the superior woodwork found in these boats. The use of materials like fiberglass for the hull and deck, often with a foam-cored deck, became standard, though the original deck hardware has been noted by some owners as a potential area for maintenance. Storage solutions are generally integrated throughout the open layout, and ventilation is typically achieved through deck hatches and portlights.

Owner's Perspectives

Owners of the Herreshoff 31 consistently commend its solid construction and the comfortable, easy-to-manage sailing experience it offers. Many appreciate the distinctive cat-ketch rig for its simplicity and the ability to balance the boat effectively under various conditions. Its "good looks, easy sailing, open accommodation, thoughtful touches, elegant simplicity, generally superior woodwork, and fast passages" are frequently cited strengths. Owners planning to cruise the Great Lakes, for example, have sought opinions on its traits, highlighting its appeal as a capable cruising vessel.

However, some common issues and weaknesses have been noted. A recurring concern mentioned by owners is the potential for problems with the foam-cored deck and the original deck hardware, particularly the absence of backing plates for some fittings, which can lead to leaks over time and necessitate re-bedding. While generally lauded for their cruising capabilities, some owners have noted that the Herreshoff 31 might not be particularly "weatherly" in all conditions, implying it may struggle when sailing directly into strong winds and chop. Despite these points, the Herreshoff 31 maintains a dedicated following, with many owners appreciating its unique design and robust build for comfortable cruising.