Hobie Trifoiler Information, Review, Specs

Sailing Performance & Handling

Sailing a Trifoiler is often compared to piloting a fighter jet. The vessel features two independent, free-standing masts, each carrying a fully battened mainsail. This dual-rig configuration is designed to keep the driving force of the sails low and centered, minimizing the heeling moment that plagues traditional monohulls and multihulls. Because the sails remain vertical, the boat translates wind energy directly into forward motion rather than sideways lean.

The hallmark of its performance is the hydrofoil system. The boat utilizes two main foils forward and one rudder-foil aft. According to technical insights often cited by Sail Magazine, the Trifoiler employs "feelers" or mechanical sensors that extend forward of the bow. These sensors ride on the water’s surface and mechanically adjust the angle of attack of the foils in real-time. If a gust hits and the boat begins to heel, the sensor on the leeward side increases lift while the windward sensor decreases it (or even provides downforce), actively pulling the boat level.

The boat requires roughly 10 to 12 knots of wind to "pop" onto its foils. Once foiling, the wetted surface area drops significantly, allowing the Trifoiler to reach speeds double that of the true wind in ideal conditions. Handling is managed via foot pedals for steering and hand-operated mainsheets for each sail. It does not "tack" in the traditional sense; instead, sailors typically "jibe-around" to maintain the necessary speed to stay on the foils.

Popular Mentions & Media

The Trifoiler’s DNA is inextricably linked to the Longshot project, which dominated speed sailing discussions in the early 1990s. The boat was featured prominently in Popular Science and Popular Mechanics during its launch, hailed as the future of high-speed recreational sailing. While it never achieved the mass-market ubiquity of the Hobie 16, it remains a cult icon in the foiling community. The boat’s unique aesthetic—looking like a cross between a catamaran and a vintage aircraft—has made it a frequent subject of "experimental sailing" retrospectives in nautical journals.

Known Issues & Buyer’s Checklist

Purchasing a used Trifoiler requires a specialized inspection, as many components are unique to this model and are no longer in production by Hobie.

1. Foil Condition and Alignment: The hydrofoils are the most critical components. Inspect the leading edges for chips or delamination, which can cause cavitation and prevent the boat from lifting. Ensure the mechanical linkages between the "feelers" and the foils move freely without excessive "slop" or play.
2. Mast Step and Rigging: The twin masts are unstayed (no shrouds), meaning the mast steps and the crossbeams take immense torque. Check for stress cracks in the fiberglass around the mast bases and the junctions where the amas (outer hulls) connect to the main akas (beams).
3. Folding Mechanism: The Trifoiler is designed to fold for trailering. The pins, hinges, and locking mechanisms are high-load areas. Corrosion or seized hardware in these joints can make the boat impossible to launch or transport safely.
4. Sail Integrity: Because the masts are proprietary and the sails are specialized to work in tandem, replacing them is expensive and often requires custom sailmaking. Check for "hooking" in the battens and UV damage to the monofilm or Dacron sections.
5. Bungee and Spring Tension: The mechanical sensor system relies on specific tension settings to react to wave heights. Old or stretched bungees can lead to "porpoising," where the boat oscillates violently while foiling.

Community & Resources

The primary hub for technical support is the International Hobie Class Association, which maintains archives on legacy models. Because the Trifoiler is so mechanically complex, owners often rely on the "Hobie Trifoiler" specialized user groups and technical wikis maintained by enthusiasts. These communities are vital for sourcing "hacks" for discontinued parts, such as using modern carbon fiber techniques to repair original foil assemblies.

The Verdict

The Hobie Trifoiler is an engineering marvel that remains one of the fastest production sailboats ever built. It is not a boat for the casual cruiser or the faint of heart, but for those seeking the pinnacle of 1990s speed technology, it is unparalleled.

Pros:

• Exhilarating speeds, capable of exceeding 30 knots.
• Advanced mechanical stabilization allows for high-speed sailing without the need for athletic "trapezing."
• Unique twin-rig design is a guaranteed conversation starter at any beach or marina.
• Can be trailered and rigged by a knowledgeable owner, despite its complexity.

Cons:

• Extremely difficult to source replacement parts; many repairs must be custom-fabricated.
• Requires a specific wind range and relatively flat water to perform optimally.
• Complexity of the "feeler" system requires significant maintenance and fine-tuning.
• Deep draft when the foils are down makes it unsuitable for shallow-water sailing without careful planning.