Trintella Iiia — Information, Review, Specs

Sailing Performance & Handling

The Trintella IIIa is characterized by its heavy displacement and a long, encapsulated fin keel with a protected skeg-hung rudder. This configuration yields a vessel with immense directional stability and a "sea-kindly" motion that minimizes the fatigue of the crew during long offshore passages. While its high displacement-to-length ratio means it requires a decent breeze to get moving, once under sail, the IIIa carries its momentum through chop that would stop lighter performance cruisers in their tracks.

Most IIIa models were rigged as ketches, a popular choice in the 1970s that allows for a versatile sail plan. In heavy weather, the "jibs and jigger" configuration (sailing under headsail and mizzen) keeps the boat balanced and manageable without the need for frequent reefing of the main. Owners often report that the boat tracks exceptionally well, allowing the autopilot or wind vane to work with minimal effort. However, like many Van de Stadt designs of this era, the IIIa can be prone to weather helm if over-canvassed, and its deep-chested hull makes it less nimble in tight marina maneuvers or light-air reaching compared to modern fin-keel designs.

Interior Comfort & Variations

The center-cockpit layout is the defining feature of the Trintella IIIa’s interior logic. This design allows for a completely separate aft cabin, which provides a level of privacy rarely seen in boats under 40 feet. In the IIIa, the aft cabin is typically accessed via a low-headroom passageway from the main saloon, though some early variants required entering through the cockpit. The interior joinery is a hallmark of the Anne Wever yard; the extensive use of solid teak and high-quality veneers creates a warm, "old-world" maritime atmosphere that modern production boats struggle to replicate.

The main saloon features a generous U-shaped settee and a fixed table, with a dedicated navigation station and a galley that is usually positioned in the walkway to the aft cabin. This linear galley arrangement provides excellent bracing for the cook while the boat is heeled. The V-berth forward serves as the primary guest cabin, with the heads located just aft of it. The Trintella IIIa technical profile highlights that while the hull remained consistent with the previous Trintella III, the "a" version often featured subtle improvements in cabin ventilation and stowage capacity, making it better suited for live-aboard cruising.

Known Issues & Buyer’s Checklist

Prospective buyers of a Trintella IIIa must contend with the realities of a 50-year-old GRP vessel. While the hulls are notoriously over-built and robust, specific areas require rigorous inspection:

1. Teak Deck Integrity: Most Trintellas were delivered with thick teak decks laid over a GRP sandwich core. Over time, the thousands of screws securing the planks can allow water to penetrate the core. Replacing a failing teak deck on a IIIa is a major financial undertaking and a common reason for price negotiations.
2. Engine Access and Age: Many original units were fitted with Perkins or Volvo Penta diesels. While reliable, these engines may be reaching the end of their service life. Access for major repairs can be tight given the center-cockpit configuration, so verify the maintenance history of the cooling system and engine mounts.
3. Osmotic Blistering: While the Anne Wever yard used high-quality resins, boats of this vintage are susceptible to osmosis. A professional moisture meter reading of the hull below the waterline is essential during the survey.
4. Rigging and Chainplates: If the boat retains its original ketch rig, the complexity of the standing rigging is doubled. Inspect the chainplates for signs of crevice corrosion, especially where they pass through the deck, as leaks here can damage the bulkheads below.

Community & Resources

The Trintella brand enjoys one of the most organized owner communities in the European sailing world. The Trintella Vriendenkring (Friends of Trintella) maintains an exhaustive archive of original brochures, technical drawings, and owner manuals. They host annual meetings and provide a vital network for sourcing specific parts or advice on restoring Van de Stadt designs.

The Verdict

The Trintella IIIa is a "gentleman’s cruiser" that offers a sense of security and craftsmanship that is increasingly rare on the used market. It is not a boat for those who prioritize podium finishes in club races, but for the sailor intending to cross oceans or live aboard in comfort, it remains an elite choice.

Pros:

• Exceptional build quality and legendary Dutch joinery.
• Highly seaworthy hull design with a comfortable motion in heavy seas.
• The separate aft cabin provides excellent privacy for families or guests.
• Strong resale value and dedicated owner support community.

Cons:

• Maintenance-intensive teak decks are a common failure point.
• Heavy displacement leads to sluggish performance in light winds.
• Handling in reverse can be challenging due to the long keel and prop walk.