PUMA 38-K Information, Review, Specs

Sailing Performance & Handling

The Puma 38-K is defined by its ketch configuration, a choice that prioritizes sail handling and balance over the raw upwind speed of its sloop-rigged siblings. Under sail, the boat exhibits the classic manners of a Holman & Pye design: it is stiff, tracks well thanks to its deep fin keel and skeg-hung rudder, and maintains a comfortable motion in a seaway. The "K" designation signifies the addition of the mizzen mast, which allows for a variety of sail combinations, such as "jib and jigger" (sailing under headsail and mizzen alone) in heavy weather. This configuration significantly lowers the center of effort, reducing heel and making the vessel easier for an autopilot or windvane to steer in gusty conditions.

Technically, the hull carries the DNA of a 3/4-tonner of its generation, featuring a relatively wide beam amidships that tapers toward the ends. While this can lead to some hobby-horsing in short, steep chops—a common trait of IOR-influenced designs—the 38-K's displacement provides enough momentum to power through most coastal conditions. According to historical technical notes from Holman & Pye, their designs for Puma focused on maximizing stability without sacrificing the "feel" at the helm, a quality that remains evident in the 38-K’s responsiveness when compared to heavier, full-keeled cruisers of the same era.

Interior Comfort & Variations

Stepping below deck, the Puma 38-K reveals an interior characterized by the extensive use of high-quality hardwoods, typically teak or mahogany, which was a hallmark of Nao-Glass production. The layout is optimized for liveaboard comfort during transit. It usually features a traditional V-berth forward, followed by a spacious head and hanging lockers. The main salon utilizes the hull's generous beam to provide a U-shaped settee to port and a straight settee to starboard, flanking a central folding table.

The 38-K’s galley is typically positioned to port, designed as a secure "U" shape to keep the cook braced while under sail. To starboard, a dedicated forward-facing chart table serves as the nerve center for navigation. One of the most significant variations found in this model is the configuration of the aft section. While most 38-Ks utilize an aft cabin arrangement, accessibility varies; some hulls were built with a walkthrough from the salon, while others—depending on specific custom requests during the Nao-Glass to DRESPORT transition—might feature a more isolated aft cabin. The headroom is notable throughout the primary living spaces, often exceeding 6'2", which contributes to the vessel's reputation as a legitimate long-term cruiser.

Known Issues & Buyer’s Checklist

Prospective buyers of a Puma 38-K should prioritize a thorough structural survey, focusing on areas common to 1970s fiberglass construction. While Nao-Glass was known for thick hull laminates, these vessels are not immune to age-related degradation.

• Osmotic Blistering: Like many Spanish-built boats from this period, the 38-K can suffer from osmosis. A hull survey should include moisture meter readings, especially below the waterline.
• Chainplate Anchors: The load-bearing points for the main and mizzen shrouds should be inspected for signs of leaking or "crevice corrosion." Water ingress at the chainplates can lead to rot in the bulkheads they are bolted to.
• Deck Core Integrity: The 38-K features a cored deck (often balsa or foam). Soft spots around the mast steps, stanchion bases, and the mizzen partner are high-signal areas for delamination or water-logged cores.
• Engine & Systems: Many original 38-Ks were fitted with Perkins or Mercedes-Benz diesel engines. While reliable, these units are now reaching the end of their service lives. Buyers should check for parts availability or budget for a modern repower.
• Rigging Age: Given the complexity of a ketch rig, standing rigging costs are higher. Ensure the mizzen mast step and the spreaders on both masts are free of corrosion and stress cracks.

Community & Resources

The primary hub for owners is the Asociación de Propietarios de Puma (Pumayn), which maintains a technical repository for the various models produced by Nao-Glass. While much of the documentation is in Spanish, it remains the most authoritative source for original wiring diagrams and tankage specifications for the 38-K. Additionally, the British design lineage means that technical inquiries regarding the hull's performance can sometimes be cross-referenced with Holman & Pye archives in the UK.

The Verdict

The Puma 38-K is a robust, aesthetically pleasing ketch that offers a Mediterranean take on classic British naval architecture. It is an ideal choice for the traditionalist sailor who values the versatility of a split rig and the warmth of a classic wooden interior over modern, lightweight production boats.

Pros:

• Versatile Sail Plan: The ketch rig offers excellent balance and ease of handling in heavy weather.
• Exceptional Pedigree: Designed by Holman & Pye, ensuring predictable and seaworthy handling characteristics.
• Build Quality: Strong fiberglass construction and high-end joinery that often surpasses modern standards.

Cons:

• Maintenance Complexity: Two masts, two sets of standing rigging, and more sails increase annual upkeep costs.
• Age-Related Risks: Potential for osmosis and deck delamination requires a rigorous pre-purchase survey.
• Limited Market: Finding a well-maintained 38-K outside of the Mediterranean (specifically Spain and France) can be challenging.