Searunner 25 Information, Review, Specs

Sailing Performance & Handling

The Searunner 25 is renowned for its sea-kindliness and surprising speed, particularly on a reach. Because it is a trimaran, it lacks the heavy lead keel of a monohull, resulting in a much higher sail area-to-displacement ratio that allows it to accelerate in light airs where heavier boats would struggle. The boat utilizes a centerboard rather than a fixed keel, which significantly reduces drag and allows for a remarkably shallow draft of approximately 2 feet with the board up. This feature, combined with the "A-frame" centerboard trunk design, provides the boat with a mechanical advantage in heavy weather; the board is designed to kick up if it strikes an underwater object, protecting the structural integrity of the main hull.

Handling is characterized by extreme "stiffness." While a monohull heels to dissipate wind energy, the Searunner stays flat, which reduces crew fatigue but requires the sailor to be more attentive to reefing triggers, as the boat will not "tell" you it is overpowered by heeling. According to technical insights often shared by the Jim Brown legacy archives, the Searunner 25's double-ended hulls help it track exceptionally well in following seas, preventing the "broaching" tendency common in wide-transom designs. While it does not tack as quickly as a modern racing multihull, its momentum and balanced sail plan make it a reliable performer in coastal and offshore transitions.

Interior Comfort & Variations

One of the most radical features of the Searunner 25 is its center-cockpit layout, a rarity for a vessel under 30 feet. This design choice splits the interior into two distinct living areas: a forward cabin and an aft cabin, separated by the cockpit. This provides a level of privacy usually reserved for much larger yachts. The forward cabin typically houses the galley, a small settee, and a V-berth, while the aft cabin provides additional sleeping quarters or a dedicated navigation station and storage area.

Headroom is limited—a necessary trade-off for the boat's low profile and aerodynamic efficiency—but the use of the "wing" spaces (the areas extending over the water between the main hull and the outriggers) provides significant storage for light items. The interior is generally utilitarian, reflecting its roots as a home-built project. While the Searunner 25 is the smallest of the lineage, it shares its DNA with the larger Searunner 31, 37, and 40. The 31-foot variant is the most common sibling, offering standing headroom and a more robust payload capacity for long-term cruising, whereas the 25 is often preferred by "minimalist" cruisers who value trailerability (with specialized kits) and lower maintenance costs.

Popular Mentions & Media

The Searunner 25 occupies a storied place in nautical literature due to Jim Brown’s prolific career as an author and advocate for multihull safety. The boat is a frequent subject in his books and the "Scrapbook" series, which documented the voyages of Searunner owners worldwide. The model also gained visibility through the work of Jo Anna Brown and the community-driven "Searunner Newsletters" that circulated for decades. The design’s reputation for safety was further cemented by its inclusion in various safety-at-sea symposiums where Brown’s "safety-first" design features, such as the central cockpit and protected steering station, were held up as benchmarks for small-craft offshore survival.

Known Issues & Buyer’s Checklist

Prospective buyers must approach the Searunner 25 with a "survey-first" mentality, as almost all examples were amateur-built from plans. The quality of construction can vary wildly between hulls.

• Plywood Rot: This is the primary concern. Inspect the "wing" areas (where the amas connect to the vaka) and the chainplate attachments for any signs of soft wood or delamination. Modern West System epoxy coatings have saved many of these boats, but older hulls built with polyester resin are highly susceptible to water ingress.
• Centerboard Trunk: The "A-frame" trunk is a high-stress area. Check for leaks around the pivot pin and inspect the trunk interior for marine growth that could jam the board.
• Weight Sensitivity: Like all small trimarans, the Searunner 25 is extremely sensitive to weight. Overloading the boat with heavy ground tackle or excessive water tanks will bridge the wings and destroy its sailing performance and safety margins.
• Rigging Tension: The wide beam of a trimaran puts unique loads on the standing rigging. Ensure the bulkheads where the stays attach are structurally sound and show no signs of "pumping" or movement under load.

Community & Resources

The Searunner community is one of the most dedicated in the multihull world. The most prominent technical resource is the Searunner Owners Association, which provides access to historical building notes and modification guides. For technical drawings and legacy support, the Jim Brown and John Marples design office remains the definitive authority, often providing consultation for owners embarking on restorations.

The Verdict

The Searunner 25 is a purpose-built cruising machine for the sailor who values safety, shallow-draft exploration, and the unique sensation of multihull flight over modern luxuries.

Pros:

• Exceptional Stability: Sails flat and remains comfortable in choppy coastal conditions.
• Shallow Draft: The retractable centerboard allows for "gunkholing" in areas inaccessible to most keelboats.
• Proven Pedigree: A design backed by decades of offshore crossings and a robust designer legacy.
• Privacy: The split-cabin layout is unmatched for a 25-footer.

Cons:

• Construction Variability: Amateur build quality requires rigorous professional surveying.
• Limited Headroom: Most adults will find the interior cramped for extended stays.
• Payload Constraints: Must be kept light to maintain its safety and performance characteristics.