F-31 Sport Cruiser Information, Review, Specs

Sailing Performance & Handling

The F-31 Sport Cruiser is defined by its remarkable power-to-weight ratio and the inherent stability of its 22-foot 5-inch sailing beam. With a Sail Area/Displacement ratio that often exceeds 35 (depending on the specific rig configuration), the boat is exceptionally responsive in light air where monohulls often stall. The standard Sport Cruiser typically features a rotating aluminum wing mast, which functions as a leading edge for the mainsail, significantly increasing aerodynamic efficiency.

Handling is characterized by fingertip control on the helm, particularly when the boat is "flying" the windward hull. While the F-31 is incredibly stable compared to a monohull of similar length, it requires active sail trimming; the sheer speed of the vessel creates significant apparent wind, often requiring reefing earlier than an inexperienced sailor might expect. According to editorial testing by Sailing World, the boat tracks exceptionally well off the wind, and the retractable daggerboard allows for deep-draft tracking upwind while maintaining the ability to explore shallow estuaries.

The F-31 was produced in several distinct performance variants. The F-31R (Race) version is the most notable sibling, featuring a taller carbon fiber rotating mast, a larger sail plan, and a simplified interior to shave weight. Later, when Corsair Marine rebranded the line, this hull became the Corsair 31, which continued the lineage with minor modifications to the deck mold and interior finishes.

Interior Comfort & Variations

The "Sport Cruiser" designation highlights the boat’s intended role as a legitimate coastal cruiser. The interior layout typically features a V-berth forward, a central settee that converts into additional berths, and a functional galley area. A key innovation in the F-31 was the inclusion of a dedicated head compartment, a significant upgrade in privacy over the F-27.

The F-31 was offered in two primary deck configurations: the Aft Cockpit (AC) and the Center Cockpit (CC). The Center Cockpit version is often preferred by cruisers as it provides a private aft cabin with a double berth, separated from the main salon by the cockpit. This layout is rare for a boat of this size and is made possible by the trimaran's unique structural requirements. The Aft Cockpit version, conversely, offers a much larger working area for the crew and a more open feel, making it the choice for those who prioritize daysailing and club racing. Materials typically include white gelcoat surfaces accented with wood trim, providing a clean, functional aesthetic that is easy to maintain after saltwater exposure.

Popular Mentions & Media

The F-31 and its successor, the Corsair 31, have maintained a high profile in the multihull community, frequently appearing as the boat of choice for speed-oriented cruising articles. The model achieved significant acclaim when it was named "Boat of the Year" by Cruising World magazine in 1992, an award that cemented the F-31's status as a viable cruiser rather than just a racing toy. The F-31's reputation is also bolstered by its frequent dominance in offshore races like the Chicago-Mac or the Texas 200, where its ability to maintain high average speeds over long distances is well-documented by Corsair Marine in their historical archives.

Known Issues & Buyer’s Checklist

When inspecting a pre-owned F-31, the primary focus must be on the Farrier Folding System. While the design is robust, the moving parts require specific attention.

• Folding Struts and Bolts: Inspect the aluminum folding struts for any signs of hairline fractures or corrosion. The pivot bolts should be checked for "slop" or wear, which can occur if the boat has been frequently trailered or used in high-load racing environments.
• Daggerboard Trunk: The trunk is a high-stress area. Check for stress cracks around the base and ensure the daggerboard operates smoothly. Internal leaks in the trunk are difficult to repair and can lead to core saturation.
• Ama (Float) Deck Core: Like many boats of this era, the amas use a sandwich construction. Use a plastic hammer to "tap-test" the decks of the floats for any dull thuds that might indicate delamination or water ingress around the stanchions and cleats.
• Mast Step and Compression: On boats with the rotating wing mast, inspect the mast base and the compression post support inside the cabin. High rig tension can occasionally lead to deformation if the support structure has been compromised.

Community & Resources

The F-31 benefits from one of the most organized and technically proficient owner communities in the sailing world. The Corsair Trimaran Community and the Farrier Marine (F-Boat) networks provide extensive technical wikis, modification guides, and sailing "safaris" (organized group cruises). These groups are essential for sourcing replacement parts for the proprietary folding system and for advice on modernizing the rig.

The Verdict

Pros:

• Exceptional Speed: Capable of sustained speeds in the mid-to-high teens, outperforming almost any monohull in its size class.
• Trailering Versatility: The patented folding system allows the boat to be kept on a trailer, eliminating slip fees and expanding cruising grounds.
• Beachability: With the daggerboard and rudder raised, the F-31 can be pulled right up to a sandy beach.
• Safety: The multi-hull configuration provides a stable, level sailing platform that reduces fatigue during long passages.

Cons:

• Limited Living Space: While "large" for a trimaran, the interior volume is significantly less than a 31-foot monohull or a bridge-deck catamaran.
• Complex Rigging: Stepping the mast and launching the boat requires a coordinated effort, which can be daunting for solo sailors.
• Price Premium: Due to their build quality and demand, F-31s tend to hold their value, making them more expensive than comparable monohulls on the used market.