Seal 28 Information, Review, Specs

Sailing Performance & Handling

On the water, the Seal 28 reflects Angus Primrose’s penchant for balanced, easily driven hulls. Unlike many of its contemporaries that relied on heavy displacement for stability, the Seal 28 utilizes a moderate beam and a reasonably high ballast ratio to maintain stiffness. When the lifting keel is fully lowered, the boat tracks with precision, showing a marked improvement in upwind performance compared to the smaller Seal 22.

The handling characteristics are often described by owners as "predictable and forgiving," though like many yachts with a swing-keel configuration, there is a slight increase in leeway compared to a deep-finned equivalent in heavy air. With a Sail Area/Displacement (SA/Disp) ratio typical of a 1970s cruiser-racer, it is not a "light air flyer," but it performs admirably in a Force 4, where the hull shape helps it plane slightly earlier than more traditional long-keeled designs. The rudder is transom-hung or semi-skeg protected depending on the specific production year, providing a direct and communicative feel at the helm. According to archival records from the Parker & Seal Sailing Association, the boat was specifically designed to handle the choppy, short-period waves common in the English Channel and the North Sea.

Interior Comfort & Variations

The Seal 28 was a "big boat" for its length in the late 70s, benefiting from the era's transition toward maximizing internal volume. The layout typically features a functional V-berth forward, a heads compartment that spans the width of the boat (providing a sense of separation from the main cabin), and a saloon with a central table that accommodates the keel trunk. Because the keel retracts into a housing that doubles as a table support, the interior feels surprisingly open for a lifting-keel yacht.

Materials are predominantly teak or afromosia veneers over robust GRP moldings. The galley is usually positioned to starboard, featuring a two-burner stove and a deep sink, while the port side often houses a dedicated chart table—a luxury often missing in modern 28-footers. Sibling models built on similar principles include the later Parker 27 and 285, which evolved from these lines; however, the Seal 28 remains distinct for its rugged, "over-built" feel. Some variants were produced with a fixed fin keel, though these are rare, as the primary selling point was the 2' 6" draft with the keel raised.

Known Issues & Buyer’s Checklist

Prospective buyers should focus their survey on the lifting keel mechanism, which is the mechanical heart of the vessel. The pivot pin and the lifting wire/winch assembly require regular inspection; stainless steel cables can fray inside the trunking, and the pivot hole in the cast iron keel can become elongated over decades of use, leading to an audible "clunk" when at anchor.

Another area for scrutiny is the deck-to-hull joint and the chainplate attachments. On older John Baker builds, the sealant can degrade, leading to minor leaks that can saturate the interior woodwork if left unchecked. Furthermore, as many of these boats were powered by original Yanmar or Volvo Penta diesel engines (often the 10-15hp range), the service history of the raw-water cooling systems and the condition of the sail-drive seal (if equipped) or P-bracket are critical. Finally, check the rudder pintles for play, as the lifting rudder system—designed for beaching—can develop wear in the bushings.

Community & Resources

The primary hub for technical data and owner support is the Parker & Seal Sailing Association. This group maintains a deep archive of original John Baker Ltd. brochures, technical drawings, and a "Keel Guide" that is essential for any owner performing maintenance on the lifting mechanism. The association also organizes rallies in the UK, where the Seal 28 remains a common sight in the Solent and the East Coast.

The Verdict

The Seal 28 is a robust, thoughtfully designed cruiser that offers a rare combination of "big boat" interior volume and "small boat" tidal accessibility. It is an ideal choice for sailors who want to explore drying creeks without sacrificing the ability to cross the Channel in comfort.

Pros:

• Shallow Draft: The lifting keel allows for exploration of areas inaccessible to most 28-footers.
• Solid Construction: Built during an era of heavy GRP layups, the hull is generally very durable.
• Intelligent Layout: Excellent use of space, including a proper nav station and separate heads.

Cons:

• Keel Maintenance: The lifting mechanism requires more oversight and periodic replacement of wear parts than a fixed keel.
• Performance Trade-off: While capable, it will not point as high as a modern deep-fin cruiser.
• Age-Related Wear: Most examples will require updates to electronics and standing rigging if they haven't been refitted recently.