Finnyacht 351 Information, Review, Specs

Make
Finnyacht
Model
351
Builder
Finnyacht
Designer
Eivind Still
Number Built
Production Year(s)
1986 - ??

The Finnyacht 351 is a refined expression of the Finnish performance cruising philosophy, designed by the prolific naval architect Håkan Södergren. Built during an era when Finnish boatbuilding (centered around the Finnyacht and Finngulf shipyards) was establishing a global reputation for joinery and structural integrity, the 351 serves as a bridge between a pure racing hull and a high-latitude cruiser. It is a vessel defined by its narrow-entry hull, substantial lead ballast ratio, and a "sailor-first" deck layout that favors tactile feedback over sheer internal volume. While often conflated with its close sibling, the Finngulf 351, the Finnyacht-branded 351 is distinguished by its specific yard-specific interior finish and a rigging plan optimized for the variable winds of the Baltic Sea.

Sailing Performance & Handling

The Finnyacht 351 is a quintessential Håkan Södergren design, characterized by a slender beam relative to modern "fat-stern" cruisers and a deep, high-aspect fin keel. With a displacement of approximately 5,500 kg and a generous ballast of roughly 2,100 kg (yielding a ballast ratio near 38%), the 351 is exceptionally stiff and capable of carrying its canvas long after its contemporary competitors have been forced to reef. The boat’s performance profile is heavily influenced by its high Sail Area/Displacement (SA/Disp) ratio, which approaches 22 in its standard configuration, placing it firmly in the category of performance cruisers.

On the water, the 351 is known for its "finger-tip" control. The deep spade rudder provides significant leverage, allowing the boat to track well even when pressed hard upwind. According to technical assessments often cited in Finnish maritime publications like Vene-lehti, the 351 excels in light-to-moderate air where its low wetted surface area allows it to outpace heavier cruisers. In heavy weather, the sharp entry of the bow slices through chop rather than slamming, a trait highly valued for offshore passages in the North Sea and Baltic. The rig is typically a fractional sloop with swept-back spreaders, allowing for fine-tuned mast bend and mainsail shape control.

Interior Comfort & Variations

Inside, the Finnyacht 351 reflects the high-end Scandinavian craftsmanship typical of the Nystad (Uusikaupunki) region. The interior is characterized by warm, hand-finished mahogany or teak veneers and solid wood fiddles. The layout is a classic Mediterranean-influenced arrangement optimized for a crew of four to six. It typically features a forward V-berth with ample storage, a central salon with twin longitudinal settees and a folding leaf table, and a sizable aft cabin on the port side.

One of the defining features of the 351 is its navigation station; unlike many modern 35-footers that have relegated the chart table to a "nook," the 351 retains a full-sized, forward-facing desk with dedicated space for electronics and instrumentation. The galley is generally L-shaped, positioned to starboard, and designed to be secure for cooking while underway. Variations of the 351 are minimal, though some hulls were delivered with a shallower "Scheel" keel for coastal cruising regions, and interior finishes may vary between high-gloss and satin varnishes depending on the original commissioning owner's preference. Its sibling, the Finngulf 351, shares the same hull mold but may feature different deck hardware packages and minor cabinetry variances.

Known Issues & Buyer’s Checklist

  • Teak Deck Longevity: Many Finnyacht 351s were delivered with hand-laid teak decks. Buyers should inspect for thinning wood, failing caulk lines, and "popping" screws, as these are premium builds where a full deck replacement can be a significant percentage of the vessel's value.
  • Rudder Bearing Wear: Due to the high-aspect nature of the spade rudder, the bearings can experience accelerated wear if the boat has been raced heavily. Any "play" or vibration in the wheel or tiller should be investigated for potential sleeve replacement.
  • Grid and Keel Bolt Inspection: The 351 utilizes a robust internal glass-fiber grid to distribute keel loads. Potential buyers should inspect the bilge area for any signs of movement, hairline fractures in the tabbing, or rust bleeding from the stainless steel keel bolts, especially if the boat has a history of groundings in rocky Baltic waters.
  • Engine Service Access: While the engine (typically a Volvo Penta) is well-installed, access for certain maintenance tasks (like the heat exchanger or raw water pump) can be tight compared to modern wide-body cruisers.
  • Porthole and Hatch Seals: High-quality Lewmar or similar hatches were used, but after three decades, the seals and acrylic may show crazing or leaks. Verify the integrity of the side ports, as leaks can damage the expensive interior mahogany.

Community & Resources

The most active technical resource for this model is the Finngulf Owners Association, which welcomes owners of Finnyacht-built hulls due to their shared heritage and design DNA. Technical drawings and historical specifications are occasionally preserved through the Södergren Design archives, which maintain records of the architect’s influential 35-foot performance series.

The Verdict

The Finnyacht 351 is an "architect’s boat," designed for those who prioritize the sensation of sailing and the longevity of Finnish construction over sheer interior volume or "floating condo" amenities.

Pros:

  • Exceptional upwind performance and stiffness.
  • High-quality Scandinavian joinery that ages better than mass-produced alternatives.
  • Balanced, responsive helm that offers genuine "sport" feel.
  • Robust construction suitable for blue-water coastal passages.

Cons:

  • Narrower interior volume compared to modern 35-foot beam-forward designs.
  • Maintenance-heavy if equipped with original teak decks.
  • Relatively rare on the second-hand market outside of Northern Europe.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
4765 lbs
Displacement
12125 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
35.27 ft
Waterline Length (LWL)
27.56 ft
Beam
11.48 ft
Draft
5.91 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
42.65 ft
E (Main Foot)
15.1 ft
I (Foretriangle Height)
40.03 ft
J (Foretriangle Base)
12.47 ft
Forestay Length (est)
41.93 ft
Sail Area
572 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
17.34
Ballast / Displacement Ratio
39.3
Displacement / Length Ratio (D/L) Ratio
258.58
Comfort Ratio
24.31
Capsize Screening Formula
2
Hull Speed
7.03 kn