Seal Sinbad Information, Review, Specs

Sailing Performance & Handling

The Seal Sinbad is characterized by the pragmatic hull lines favored by Angus Primrose, featuring a relatively wide beam for its length and a moderate displacement that provides a sense of security in choppy coastal waters. The lifting keel is the centerpiece of its handling characteristics; when fully lowered, the boat exhibits a stiff, upright posture that allows it to point reasonably well for a boat of its vintage and class. When the keel is raised, the draft is reduced to approximately 2 feet, making it an exceptional vessel for exploring "thin water" areas where fixed-keel yachts cannot venture.

In terms of sea-kindliness, owners often report that the Sinbad tracks well due to its balanced sail plan and the weight of the cast-iron keel. While it is not a racing machine, the hull's flat sections aft allow it to achieve respectable speeds on a reach. However, like many 1970s cruisers with transom-hung rudders, the helm can become heavy if the boat is over-canvased, necessitating early reefing to maintain control and comfort. The boat's ability to "take the ground" and sit upright on its internal ballast and keel stub makes it a favorite for tidal moorings, a design philosophy deeply embedded in the Parker & Seal Sailing Association archives regarding the model's versatility.

Interior Comfort & Variations

For a 22-foot vessel, the Sinbad offers a remarkably functional, if snug, interior layout. It typically features a four-berth configuration: a double V-berth in the forepeak and two single settee berths in the main cabin. The lack of standing headroom—common in boats of this size—is offset by a pop-top or a well-designed companionway that allows for ventilation and a sense of space when at anchor. The galley is rudimentary, usually consisting of a small two-burner stove and a sink, which is sufficient for weekend coastal hops.

The Sinbad underwent several subtle evolutions during its production run. While the hull remained largely consistent, early versions featured a different coachroof profile compared to the later models that were eventually rebranded as the Seal 22. The Sinbad is frequently discussed alongside its siblings, most notably the Seal 22 Mk I and Mk II. While the Seal 22 became the more "refined" production version with modernized interior moldings, the Sinbad is often praised for its "workboat" honesty and slightly more rugged interior woodwork. Other siblings in this design lineage include the larger Seal 28 and the high-performance Super Seal 26, the latter of which took the lifting-keel concept into the realm of offshore racing.

Popular Mentions & Media

The Seal Sinbad and its successor, the Seal 22, are frequently cited in British maritime literature as the quintessential entry-level cruisers of the 1970s. While it has not been the subject of a major motion picture, the model is a fixture in "Small Boat Cruising" guides and has been featured in numerous retrospective reviews by British nautical journals. The Parker & Seal Sailing Association maintains a comprehensive record of the boat's cultural impact, including its role in pioneering the concept of "trailing and sailing" which allowed owners to explore distant cruising grounds without the expense of permanent marina berths.

Known Issues & Buyer’s Checklist

Prospective buyers of a Seal Sinbad should focus their inspections on the unique mechanical aspects of a vintage lifting-keel boat.

• Keel Pivot and Lifting Mechanism: The most critical area for inspection is the keel pivot bolt and the lifting wire. Over decades, the pivot hole in the cast iron keel can become elongated, leading to a "clunking" sound when at anchor. The lifting winch and wire must be checked for corrosion and fraying, as a failure here can result in the keel dropping uncontrollably.
• Deck Core and Mast Step: Like many GRP boats of this era, the Sinbad may suffer from moisture ingress in the deck core, particularly around the mast step and chainplates. Soft spots in the deck are a common sign of delamination that requires structural repair.
• Window Leaks: The original plexiglass windows are often prone to leaking due to the degradation of the sealant and the flexing of the cabin trunk. Many owners choose to replace these with modern bolted-through frames.
• Rudder Bushings: The transom-hung rudder is subject to significant stress. Buyers should check the pintles and gudgeons for excessive play, which can lead to vibration and poor steering response.

Community & Resources

The primary authority for the Seal Sinbad is the Parker & Seal Sailing Association. This organization provides an invaluable repository of technical manuals, rigging diagrams, and historical data. They also host regional rallies and offer a forum where owners share specific advice on keel maintenance and restoration projects.

The Verdict

The Seal Sinbad is a charming and capable classic that offers a low-cost entry point into the world of coastal cruising. While its accommodations are modest, its ability to explore shallow waters and be stored on a trailer makes it a practical choice for the adventurous sailor on a budget.

Pros:

• Versatility: The lifting keel allows for beaching and easy trailering.
• Pedigree: Designed by Angus Primrose, ensuring solid sailing characteristics for its size.
• Build Quality: Substantial GRP layups characteristic of John Baker’s 1970s production.

Cons:

• Headroom: Limited interior height may be restrictive for taller sailors.
• Maintenance: The lifting keel mechanism requires regular, specialized attention.
• Age: Most examples will require updates to standing rigging and electronics.