Island 31 Information, Review, Specs

Sailing Performance & Handling

The sailing characteristics of the Fishers Island 31 are defined by its deep-draft, full-keel design and a displacement that provides exceptional momentum in heavy air. Unlike the lighter "S-Boats" of the same era, the FI 31 was intended to "stay on its feet," utilizing a high ballast-to-displacement ratio to maintain stiffness. According to archival records and historical retrospectives from the Herreshoff Marine Museum, the boat features a fractional sloop rig that, while shorter than its predecessors, allows for a powerful sail plan that can be reefed effectively as the wind rises.

On the water, the boat is known for its "sweet" helm—a hallmark of Sidney Herreshoff’s engineering—requiring only light fingertip pressure when properly balanced. The long keel ensures excellent tracking, making it a "hands-off" boat once the sails are trimmed. However, like many heavy-displacement vessels of its vintage, it lacks the acceleration of a modern fin-keel boat in light air. In a blow, the FI 31 shines; its heavy scantlings and double-planked cedar or mahogany over oak frames absorb the energy of the sea, resulting in a quiet, stable motion that is far more comfortable than modern lightweight cruisers of similar length.

Interior Comfort & Variations

For a vessel designed in the late 1920s, the Fishers Island 31 offers a surprisingly functional interior that maximized the 31-foot overall length. The cabin typically follows a traditional layout: a V-berth forward, followed by a small head and hanging locker, and a main salon with two opposing settees that double as berths. The cabinetry is almost universally finished in the "Herreshoff Style"—white-painted bulkheads contrasted with varnished mahogany trim—which prevents the narrow, low-headroom cabin from feeling overly dark or cramped.

While the primary model was the 31, Sidney Herreshoff utilized the same design philosophy for siblings in the Fishers Island series, most notably the Fishers Island 23 (a smaller daysailer) and the significantly larger Fishers Island 42. Some FI 31 hulls were modified by owners over the decades to include more modern galley arrangements or upgraded navigation stations, but the original intent was simplicity. The boat was designed for "gentlemanly cruising," meaning it provided enough comfort for a weekend at anchor but prioritized the cockpit and deck space for active racing and day sailing.

Known Issues & Buyer’s Checklist

Prospective owners of a Fishers Island 31 must approach a purchase as a stewardship of a historic artifact. The most critical area for inspection is the hull’s structural integrity, specifically the condition of the oak frames and the bronze fastenings. While Herreshoff was known for using high-quality bronze, decades of stress can lead to "necking" of the bolts.

• Mast Step and Deck Core: The mast step in these boats often sits on the keel, but the deck around the partners can suffer from freshwater ingress. If the original canvas-covered decks have been replaced with fiberglass or teak, it is vital to check for rot in the underlying cedar or plywood.
• Ballast Bolt Integrity: The heavy lead keel is attached with bronze or monel bolts. Despite their longevity, these should be pulled and inspected if there is any evidence of "weeping" at the hull-keel joint.
• Rib and Frame Cracking: Check for cracked frames in the turn of the bilge, a common issue in older wooden boats that have been raced hard or improperly blocked during winter storage.
• Electrolysis: Because the FI 31 uses an extensive amount of bronze (including the rudder hardware and portlights), ensuring a proper bonding system is essential to prevent galvanic corrosion, especially if a modern engine and electrical system have been installed.

Community & Resources

The primary authority for technical information and historical verification is the Herreshoff Marine Museum, which houses the original offsets and construction plans for the FI 31. This resource is invaluable for owners undertaking restorations. Additionally, the Fishers Island Yacht Club maintains a strong connection to the class's history, as these boats were the premier racing fleet at the club for decades. While no formal "class association" exists in the modern sense, the tight-knit community of Herreshoff owners often shares technical data through the museum’s annual symposiums and classic yacht regattas.

The Verdict

The Fishers Island 31 is a masterpiece of early 20th-century naval architecture, offering a level of craftsmanship and aesthetic beauty that is virtually extinct in modern boatbuilding. It is a boat for the traditionalist who values history and sea-kindliness over interior volume and flat-out speed.

Pros:

• Exquisite "Captain Nat" inspired aesthetics with timeless lines.
• Exceptional heavy-weather performance and stability.
• High-quality original construction using premium materials like bronze and mahogany.
• Strong historical pedigree and high resale value among classic boat enthusiasts.

Cons:

• High maintenance requirements inherent to wooden hull ownership.
• Limited headroom and interior volume compared to modern 31-footers.
• Large turning radius due to the long keel, making tight marina docking a challenge.