Design and Construction
Both hull and deck are hand-laid fiberglass built as a balsa-cored sandwich, a method the original review noted adds insulation between the skins. The lead fin keel carries 5,556 pounds of ballast against a 12,125-pound displacement, a 45.8 percent ballast-to-displacement ratio that gives the 36 a sure footing without tipping her into the heavy cruiser category. Two keel drafts were offered: a deeper fin drawing about 6.2 to 6.5 feet depending on load, which limits her to major marinas, and a shoaler fin at roughly 5.4 to 5.7 feet that opens most harbor entrances. The 10-foot-8-inch beam and 28-foot-2-inch waterline produce a length-to-beam ratio of 3.34 and a displacement-length ratio of 241, the figure that places her among moderate racers rather than out-and-out racers or plodding voyagers.
Rig and Handling
The 36 was offered with either a fractional rig or an alternative fractional rig, and under the ISO 8666 reference sail her sail-area-to-displacement ratio is 18.8, rising to 21.7 with a 135 percent genoa. That puts more rig on her than 62 percent of comparable sailboats, and the Relative Speed Performance of 76 against a theoretical displacement-hull maximum of 7.1 knots tells you she is built to move. A fin keel and responsive helm give her the maneuverability you expect from the type. The capsize screening value of 1.87 and a Motion Comfort Ratio of 25.7 frame a boat that is steady enough for coastal work yet quick on her feet, with an immersion rate of about 1,058 pounds per inch marking how she sits in the water as load changes.
Accommodations and Power
Below, the interior is teak, the conventional choice for the era, and the 26-gallon water and 19-gallon diesel tanks — the latter in stainless steel — suit weekends and short coastal passages rather than bluewater self-sufficiency. The Volvo Penta MD 2002S, an 18-horsepower diesel turning a saildrive, pushes her at a recorded 7.0 knots, essentially matching the theoretical hull speed. The 355-square-foot wetted surface is moderate for the length and keeps her from feeling sluggish in a breeze.
Known Issues
The single most important caveat is that the 36 was sold in part as a home-completed kit, so finish quality varies hull to hull and a buyer cannot assume yard-level consistency. The balsa core in both hull and deck is the other watch item: any breach in the gelcoat or fastener that lets water into the core invites localized rot that is invisible from the surface until it spreads.
Ownership Notes
With fewer than 100 built and production closed in 2003, the 36 is a small class. The Södergren design lineage and the yard's glass-and-core practice give her a recognizable profile, but the home-completion route means each boat's upkeep history matters more than the badge.
The Verdict
The Finngulf 36 is a thoughtfully rigged moderate racer with a comfortable motion and a practical shoal-keel option, let down only by the inconsistency of kit-built examples and the perennial balsa-core moisture risk.
Pros
- Tall rig for the size, outperforming most similar boats on sail area
- Lead fin ballast and moderate displacement give a quick, steady hull
- Shoal keel option expands marina access
- Insulated sandwich construction steadies the cabin climate
Cons
- Home-completion history means variable build quality
- Balsa-cored hull and deck are vulnerable to hidden water intrusion
- Small production run limits spares familiarity and resale depth
