Design and Construction
The F-24 Mk II is a study in engineering restraint. The central vaka is kept fine and shallow — a deliberate trade-off that minimizes drag and enables planing — while the stern flares wide and flat to damp pitching and provide lift. The amas carry a beam-to-length ratio approaching 20:1, shaped for maximum lift and minimal resistance, with their longitudinal center of buoyancy positioned well forward to resist pitchpoling. Total beam when deployed is just under eighteen feet; folded, the Farrier Folding System reduces beam to eight feet two inches for trailering or squeezing into a standard marina slip.
Construction quality sets Corsair apart from conventional production builders. Nearly fifty separate moldings go into each F-24, compared to the two — hull and deck — typical of a monohull. Carbon fiber and Kevlar reinforcement, vacuum-bagged laminates, double-bias glass fabrics, PVC foam coring, vinylester barrier coats, and NPG gelcoat are standard practice on the production floor, not custom-shop extras. Bulkheads are tabbed in seven places to the hull. The akas seat in stainless steel pivot bolts socketed into bulkhead-reinforced receptacles, with solid aluminum struts below that bear bending loads independently so the anchor bolts serve as backup only.
Rig and Handling
The Mk II's rotating mast and square-top mainsail deliver aerodynamic gains that translate directly into boat speed. Pre-setting rotation adds an element of sail control that rewards attentive sailors, and the rig proved self-evident in practice during testing. A retractable bowsprit carries a screacher — a large furling reacher — that can double the effective foretriangle area and boost speed meaningfully when sailing above forty degrees apparent. Owners report close-reaching speeds that routinely exceed true wind speed, with quick tack response and generally good behavior even in lumpy conditions.
Under main alone, the boat demonstrated fifteen to twenty tacks in five minutes without getting caught in stays during a Practical Sailor test on Vineyard Sound. With the daggerboard deployed, the F-24 points respectably; cracked off slightly it is, like most performance multihulls, at its most efficient. Maximum heel angle rarely exceeds fifteen degrees, which eliminates white-knuckle tension and simplifies stowage. A five-horsepower outboard, the recommended minimum, provides six-plus knots under power with good maneuverability — though keeping some board down under engine improves tracking.
Accommodations
Below the companionway, expectations must be managed carefully. The main hull's interior beam peaks at slightly over six feet six inches, and the cockpit consumes nearly a third of the overall length, leaving the cabin compact. A V-berth forward fits adults lengthwise but not two adults side by side. A starboard settee converts to a double berth, but once extended it occupies the entire cabin width, requiring hands-and-knees navigation. A simple galley to port includes a sink, single-burner stove, and icebox. There is no dedicated head compartment; a porta-potti stows under the V-berth.
Where the F-24 compensates is on deck. Trampolines between the main hull and amas provide extensive usable area, and ten people have reportedly lounged aboard comfortably on calm days. A pop-top hatch adds partial standing headroom below and, with a canvas boom-tent rigged at anchor, the companionway area becomes a sheltered outdoor room. Owners who approach the interior as a comfortable camping platform — organized with stowage pockets and Velcro on the fabric liner — find it serviceable for overnights and weekends. Those expecting passage-making comfort will be disappointed.
Known Issues
The transition from pivoting centerboard to daggerboard in the Mk II raised a practical concern among reviewers: a daggerboard offers no give when grounding. The original F-24's centerboard would simply kick up; the Mk II's rigid, high-aspect daggerboard may sacrifice itself to protect the hull, but the outcome is considerably more dramatic than easing a centerboard pennant. Sailors who explore thin-water anchorages — one of the trimaran's genuine advantages — should treat the board with corresponding care.
Several owner-reported issues include rudder cavitation at high speed, for which Farrier designed an optional rudder fence. Some owners noted that the thin skin scratches easily. A report of mainsail batten caps missing on delivery and a sloppy rudder pintle suggest that, as with many small-batch performance builders, pre-delivery inspection is time well spent. An early production batch of akas experienced oil-canning from improperly catalyzed PVC foam; Corsair issued a recall and retrofitted those boats, and the system has worked correctly since.
The manufacturer and experienced owners consistently advise that the F-24 is not a boat for novices. At speeds approaching twenty knots, mistakes can be magnified and consequences are immediate. Suiting sail area to conditions requires judgment, since heel angle — the traditional monohull cue — is not a reliable wind indicator on a trimaran.
Refit and Ownership Considerations
The Farrier Folding System requires minimal maintenance but deserves regular inspection of the stainless pivot hardware and beam socket reinforcements. Because the amas remain buoyant when folded, a trailered and folded F-24 is stable enough for motoring in and out of slips — a practical convenience that simplifies single-handed docking. The mast-raising system, engineered to work with the trailer winch, allows one person to raise or lower the mast, a meaningful independence advantage for owners without a yard crew.
Optional cruising modules — a galley upgrade at additional cost — can be installed quickly for weekend use and removed afterward, consistent with Corsair's design philosophy of keeping the base boat light and letting owners add amenities selectively. Owners seeking offshore capability should note that even the manufacturer does not recommend offshore passages, though F-27s have completed transoceanic crossings; the F-24 is genuinely a coastal and inland-water machine.
The Verdict
The Corsair F-24 Mk II is the best possible answer to a very specific question: how do you build a fast, trailerable, performance trimaran that fits in a marina slip, deploys in minutes, and can genuinely be lived aboard for a weekend? Farrier and Corsair answered it with precision engineering, serious composite construction, and a folding mechanism that even an owner calling it foolproof cannot overstate. The boat is not for everyone — the accommodations are sparse, the speeds demand respect, and the daggerboard offers little forgiveness on hard groundings. But for the experienced sailor who wants a boat that shrinks time between destinations, disappears into a highway lane for transport, and occasionally posts twelve knots on a breezy Vineyard Sound evening, the F-24 Mk II delivers on every promise it makes.
Pros
- Exceptional speed for a 24-foot trailerable boat, with double-digit knots achievable in moderate breeze
- Farrier Folding System folds to eight-foot highway width reliably and quickly
- Serious composite construction — vacuum-bagged, foam-cored, Kevlar-reinforced — at production-line consistency
- Levels off at around fifteen degrees of heel; stable, dry, and confidence-inspiring on deck
- Single-handed mast raising via trailer winch; practical independence for the solo owner
- Large deck area and trampolines provide genuine social space on calm days
Cons
- Interior accommodations are minimal: no standing headroom, no head compartment, cramped berths
- Daggerboard offers no forgiveness on grounding — a serious concern in thin-water exploration
- Rudder cavitation at high speed (optional fence required); thin gelcoat scratches easily
- Performance demands experience: high speeds leave little margin for sail-handling errors
- Not suited for offshore passages per the manufacturer's own guidance
