Island Packet 31 Information, Review, Specs

The Island Packet 31 emerged from the design philosophy of Bob Johnson, a naval architect with a strong engineering background who founded Island Packet Yachts in 1979. Johnson's enduring vision was to design and build sturdy, seakindly offshore cruising boats, a philosophy that deeply influenced the IP31. 2, "builder article" The 31-foot model, introduced in 1983, became a very successful design, playing a significant role in propelling the brand forward.

Island Packet yachts, including the 31, are characterized by their "Full Foil Keel®" design, a signature feature that offers excellent directional stability, minimizes fouling, and provides substantial protection for the prop and rudder against impact damage. "builder article" This construction method, common across Island Packet models, involves a one-piece, hand-laminated, solid fiberglass hull and keel, utilizing triaxial knitted fiberglass for strength and durability. "builder article" While the Island Packet 31 remained in production for six years, there were no significant documented variations like MkI or MkII versions during its run, although individual boat specifications could change over time.

Sailing Performance and Handling

The Island Packet 31 is fundamentally a cruising sailboat, renowned for its kindly motion at sea rather than outright speed. With a Sail Area to Displacement (SA/D) ratio of approximately 17.20, she is generally considered capable of respectable performance in a range of wind conditions, though not designed for racing. The Ballast to Displacement (B/D) ratio of about 40.9% suggests a stiff and stable boat, well-suited to standing up to a breeze and providing a comfortable ride in varied sea states. Her Displacement to Length (D/L) ratio of approximately 229.76 places her in the heavier cruiser category, contributing to her solid feel and seakindliness.

Owners frequently praise the boat's robustness and comfortable motion. While not a light-air flyer or a close-winded racer, the IP31 is well-regarded for its ease of handling and forgiving nature, particularly when going off the wind. As is common with full-keel designs with protected propellers, some owners note that control in reverse can be challenging. The cutter rig, featuring multiple smaller sails, offers versatility and makes sail handling manageable, even for those not keen on frequent tacking.

Accommodations and Layout

The interior of the Island Packet 31 is designed for comfort and practicality, making it suitable for coastal passages and extended cruising. The wide beam of 11.6 feet contributes significantly to both stability and interior volume. The layout is generally considered functional and well-executed.

Typical arrangements include V-berths forward, often described as generous, followed by a spacious head compartment. The main salon usually features settees that can serve as berths, often with a folding table, providing a comfortable living and dining area. The galley is typically located aft, offering essential amenities for onboard living. Island Packet's construction allows for tankage to be centrally located below the cabin sole, which helps maximize usable storage space throughout the interior. Owners often find the finish quality to be good, with a focus on durable materials suitable for cruising.

Owner's Perspectives

Island Packet 31 owners consistently commend the boat for its solid construction, comfortable motion in a seaway, and overall suitability for cruising. Many find it a delight to sail and well-built for enduring adventures. The boat is popular among those planning coastal passages, such as the Great Loop, or exploring shallow waters like the Bahamas.

While largely positive, some recurring points are discussed by owners. As noted in performance, the full keel design, while offering protection and stability, can result in challenging maneuverability in reverse. While owners appreciate the robust build, like many boats of its era, potential issues such as original deck fittings developing leaks, requiring re-bedding, can arise. Owners forums and associations, such as IP Home Port and the Island Packet Yacht Owners Association, highlight a strong and active community, indicating a high level of owner satisfaction and support for this enduring model. 10, "builder article"