Spirit 37 Information, Review, Specs

Make
Spirit
Model
37
Builder
Spirit Yacht
Designer
J. De Ridder
Number Built
Production Year(s)
1996 - ??

The Spirit 37, produced by Spirit Yacht BVBA in Boom, Belgium, represents a pinnacle of Belgian GRP (Glass Reinforced Plastic) boatbuilding from the late 1980s and early 1990s. Often overshadowed by the similarly named British "Spirit Yachts," the Belgian Spirit line was a distinct series of performance-oriented cruisers designed largely by the acclaimed naval architect Jac. de Ridder. The 37 is frequently cited as a refined evolution of the Spirit 36, sharing its lineage with a stable of seaworthy siblings that includes the Spirit 28, the 32, and the flagship Spirit 41. Built with a focus on the challenging conditions of the North Sea, the Spirit 37 gained a reputation for combining a competitive handicap with the structural integrity required for serious offshore passage-making.

Sailing Performance & Handling

The Spirit 37 is characterized by its stiff, predictable behavior in a breeze, a hallmark of Jac. de Ridder's design philosophy. The hull features a relatively deep fin keel and a balanced spade rudder, which together provide exceptional tracking and a responsive feel at the helm. According to technical documentation from the designer, the Spirit 37 was engineered with a moderate displacement-to-length ratio, allowing it to maintain momentum through the "short, steep chop" typical of European coastal waters without the pounding associated with lighter, modern flat-bottomed designs.

Under sail, the boat is known for its impressive upwind capabilities. Owner accounts often highlight its ability to point higher than many contemporary mass-production cruisers. The rig is typically a fractional setup with swept-back spreaders, which allows for fine-tuning of mast bend to flatten the mainsail in heavy air. While the boat is fast in light winds due to its generous sail area, it truly excels when the wind increases, remaining "on its feet" long after its competitors have reached for their first reef.

Interior Comfort & Variations

Unlike many "racer-cruisers" that sacrifice amenities for weight savings, the Spirit 37 features a high-quality interior finished in warm mahogany or teak. The layout is a classic maritime arrangement that prioritizes safety and functionality at sea. It typically includes a forward V-berth, a central saloon with two longitudinal settees, and a dedicated navigation station to starboard. The L-shaped galley is positioned to port, designed with deep sinks and secure bracing points for cooking while underway.

The 37 was primarily offered in a two-cabin configuration, which allowed for a significantly larger aft cabin and a more spacious heads compartment compared to the earlier Spirit 36. This configuration also provided a deep cockpit locker, a critical feature for storing sails and cruising gear. Headroom is generous throughout the main cabin, usually exceeding 6'2", which was a notable selling point for the model during its production run. The joinery is of a standard often compared to Scandinavian builders, with robust handrails and rounded corners intended to minimize injury during heavy weather.

Known Issues & Buyer’s Checklist

Prospective buyers of a Spirit 37 should focus their inspections on several areas common to Belgian-built boats of this era:

  • Rudder Bearings and Play: Due to the high loads generated by its performance-oriented spade rudder, the bearings can develop play over time. A "clunking" sensation at the helm often indicates the need for sleeve replacement.
  • Deck Core Integrity: While the hulls are solidly built, the decks are balsa-cored. High-wear areas around stanchion bases and the mast step should be checked with a moisture meter for signs of delamination or water ingress, which can soften the core.
  • Keel-to-Hull Joint: Given the boat's racing heritage, it is vital to inspect the keel bolts and the internal grid structure for signs of "hard grounding" or stress fractures in the fiberglass near the trailing edge of the keel.
  • Osmotic Blistering: While Spirit Yacht BVBA utilized high-quality resins, boats from the late 80s are at an age where osmotic blistering can occur. A dry-dock inspection of the hull is mandatory.
  • Original Engine Condition: Many 37s were fitted with Volvo Penta or Yanmar diesels. Given the age of the vessel, buyers should check for exhaust elbow corrosion and the service history of the saildrive seal, if equipped.

Community & Resources

The Spirit 37 remains a popular choice in the Netherlands, Belgium, and Germany. The primary technical resource for owners is the Dutch-based "Spirit-vereniging" (Spirit Association), which serves as a repository for tuning guides, original brochures, and technical specifications for the entire Spirit Yacht BVBA range. While the builder’s original digital presence at spirit-yacht.com is no longer a primary source of modern information, the association provides a vital link for sourcing specific parts or architectural advice.

The Verdict

The Spirit 37 is a "sailor's boat" that offers a level of build quality and sea-kindliness rarely found in modern production yachts of the same size. It is an ideal choice for the coastal cruiser who refuses to sacrifice sailing performance for interior volume.

Pros:

  • Exceptional upwind performance and stiffness in heavy weather.
  • High-quality interior joinery that surpasses many modern alternatives.
  • Robust construction specifically designed for North Sea conditions.

Cons:

  • Aged GRP requires diligent maintenance of the balsa-cored deck.
  • Limited availability on the brokerage market outside of Northern Europe.
  • Cockpit layout is optimized for active sailing, which may feel cramped compared to modern "floating lounge" designs.

Measurements

Construction & Hull

Construction Material
Fiberglass (PVC Foam Core)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
5291 lbs (Iron)
Displacement
12897 lbs
Water Capacity
69 gal
Fuel Capacity
18 gal

Dimensions

Length Overall (LOA)
38.06 ft
Waterline Length (LWL)
30.35 ft
Beam
12.01 ft
Draft
6.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
43.47 ft
E (Main Foot)
12.63 ft
I (Foretriangle Height)
48.39 ft
J (Foretriangle Base)
15.26 ft
Forestay Length (est)
50.74 ft
Sail Area
644 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
18.73
Ballast / Displacement Ratio
41.03
Displacement / Length Ratio (D/L) Ratio
205.95
Comfort Ratio
22.27
Capsize Screening Formula
2.05
Hull Speed
7.38 kn