Design and Construction
The hull is hand-laid fiberglass with a solid laminate, while the deck is fiberglass in a sandwich layup that the original review credits with improving the indoor climate below hand laid fibreglass. The keel is a fin carrying 1,675 pounds of lead ballast, and the spade rudder completes a modern underbody for the era. At 25.92 feet overall length and 8 feet of beam, the Larsen 25 shows a length-to-beam ratio of 3.22, and its 48 percent ballast ratio with 3,527 pounds displacement places it firmly among what period analysis classed as light racers. The draft runs 4.59 to 4.89 feet depending on load, which lets the boat reach shallow marinas without a lifting keel.
Rig and Performance
The fractional rig carries 355 square feet of sail, and the displacement-to-length ratio of 117 together with a sail-area-to-displacement figure near 24.5 mark the design as quick for its size. The theoretical hull speed is 6.5 knots, and the Relative Speed Performance index was calculated at 92. Less reassuring for offshore ambition is the capsize screening value of 2.11, a number the reviewing source noted would bar the boat from ocean-race acceptance. The Motion Comfort Ratio sits at 13.8, and the immersion rate is about 666 pounds per inch, meaning loaded trim changes are gentle for a boat of this weight. The wetted-surface area of the underwater body is approximately 226 square feet.
Accommodations
Below, the interior is finished in teak, consistent with Scandinavian practice of the period, and the boat has a toilet facility as part of the layout. The compact volume reflects the 25-foot hull and the light-racer orientation more than a bluewater liveaboard brief.
Known Issues and Build Variance
A defining caveat is that the Larsen 25 was also offered as a home-completed kit, so finished-boat quality varies hull to hull home-completed, which means that the quality of each boat may vary. A buyer or reviewer cannot assume uniform standards of joinery, tabbing, or systems across the series. This build variance is the single most important lens through which to read any individual example.
The Verdict
The Larsen 25 is a small, light, lead-ballasted sloop with a comfortable motion and easy draft for a 1980s design, but its home-completion path means condition is everything and its capsize number limits offshore use.
Pros
- Hand-laid solid fiberglass hull with sandwich deck for cabin comfort
- Lead fin keel and spade rudder with shallow 4.6–4.9 foot draft
- Light-racer profile with strong speed indices for the length
Cons
- Home-completion route produces inconsistent build quality across boats
- Capsize screening of 2.11 excludes ocean racing
- Only 65 built, so support and comparables are scarce
