Name: Corsair 27
Brand: Corsair

Sailing Performance & Handling

The sailing characteristics of the Corsair 27 are defined by a level of performance that typically leaves 40-foot monohulls in its wake. On a beam reach, the boat is a "variable-geometry rocket," capable of sustained speeds exceeding 15 knots and bursts of 20 knots or more under spinnaker, as noted in editorial reviews by Wavetrain. Unlike many multihulls of its era, it is also surprisingly weatherly; thanks to a deep, high-aspect daggerboard, it can point as high as 35 to 40 degrees apparent while maintaining 8 knots of boat speed.

Stability is another hallmark of the design. Because the boat relies on beam rather than lead ballast for righting moment, it sails remarkably flat, with heel angles rarely exceeding 12 degrees. This "level" sailing experience reduces fatigue and makes the boat approachable for families. Handling is light and responsive via a transom-hung rudder, and many owners report the ability to tack the boat using only sail trim, even with the rudder lifted. The rig is fractional and relatively tall, but the boat remains manageable even for single-handers, provided the sailor is diligent about reefing early as the apparent wind builds quickly.

Interior Comfort & Variations

While the Corsair 27 is technically a cruiser, its interior volume is significantly less than that of a 27-foot monohull because the living space is confined entirely to the narrow central hull. However, the design utilizes every available inch through a clever "pop-top" companionway cover. When raised, this feature provides approximately 6 feet 4 inches of standing headroom in the galley and main saloon areas, as detailed by Practical Sailor.

The layout includes a compact V-berth forward, which also houses a marine head and sink, and a narrow double berth located in a separate aft cabin behind the cockpit. The main saloon features two settee berths that can be converted into a large single platform. While the galley is minimal—typically consisting of a two-burner stove and a small sink—the lack of heeling means gimbals are unnecessary, simplifying meal preparation at sea.

There are several notable siblings and variations built on this platform. The F-27 Formula featured a taller rig for light-air performance, while the F-27 Sport Cruiser focused on updated amenities. In 1997, the model was succeeded by the Corsair 28 (initially the F-28), which used much of the original tooling but featured a rotating wing mast and a more sophisticated interior layout.

Popular Mentions & Media

The Corsair 27’s cultural footprint is massive within the multihull community. It achieved legendary status early on by winning the multihull division of the Newport-Ensenada Race in 1989 and 1990. Its seaworthiness has been proven by multiple transoceanic passages, including successful crossings from California to Hawaii and New England to Europe. Renowned yacht designer Robert Perry, writing for Sailing Magazine, famously noted that the F-27 was the boat that finally made multihulls "normal" to the average monohull sailor.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the Corsair 27 as a high-performance machine that requires specific technical oversight. While the hulls are robustly built using PVC foam core—which is more water-resistant than balsa—neglect can still lead to issues.

Internal Osmosis: Because these boats are often stored on trailers, owners sometimes allow freshwater to sit in the bilges for years. This can cause the interior fiberglass liner to delaminate from the foam core, a condition sometimes referred to as "osmosis from the inside out."
Folding Strut Hardware: The folding mechanism utilizes aluminum struts and stainless steel pivot bolts. These should be inspected for corrosion, cracks, or "slop" in the nylon bushings. If the folding action is not smooth, it may indicate bent or misaligned hardware.
Beam-to-Hull Bolts: The beams are secured by high-strength bolts into reinforced bulkheads. Ensure these are tight and that there are no signs of stress cracking in the gelcoat around the bolt recesses.
Pop-top Seals: The large companionway pop-top is a common source of leaks. Check the rubber gaskets and the structural integrity of the lifting gas struts, as these often lose their charge over time.
Trampoline Condition: The netting between the hulls is a critical safety component. Check for UV degradation in the webbing and stitching; most original trampolines will have been replaced at least once.

Community & Resources

The F-27 community is exceptionally active and technically proficient. The primary hub for technical data and owner support is the F-27 Class Association, which maintains extensive archives of Ian Farrier’s original design notes and modification guides. Support is also found through the Farrier Marine technical wikis, which offer guidance on everything from rig tuning to trailer maintenance.

The Verdict

The Corsair 27 is an ideal choice for the sailor who prioritizes speed and geographical flexibility over interior luxury. It remains a benchmark for build quality and design intelligence.

Pros: