Design and Construction
Gillmer gave the Seawind a long keel and transom-hung rudder, trading tight-quarters agility for directional stability. The solid, hand-laid fiberglass hull has extra-thick laminates in the bilge.
Lead ballast is encapsulated within the keel layup and glassed over, eliminating external keel bolts. The hull-to-deck joint consists of outward-turned flanges, through-bolted on five-inch centers with sealant, glassed inside, and capped by an aluminum rubrail. Bulkheads are tabbed directly to the hull, while the decks have a balsa core.
Rig and Handling
The original Seawind was primarily a ketch. Its foretriangle measures 217.93 sq ft, based on a 35'7" hoist and 12'3" base. The mainsail is 206.90 sq ft, and the mizzen is 85.76 sq ft.
The sail-area/displacement ratio is 15.38, displacement/length 387.52, ballast/displacement 34.0%, capsize screening 1.62, and comfort 36.91. These figures describe a heavy, stiff cruiser that wasn’t built for speed.
Accommodations and Model Years
Pre-1979 boats have woodgrain Formica veneer, while later boats carry natural wood finishes. Build year therefore predicts the interior trim. Apart from this change, the later boats retained the same structure and lines; across the twenty-year production span, the main difference was the trim era.
Known Issues and Repair Considerations
The balsa-cored deck is the principal vulnerability. Leaks around through-deck fittings can rot the core from within, with little sign at the surface.
Encapsulated ballast avoids external keel bolts, but it also complicates keel-impact repairs. Reaching the ballast requires cutting into the laminate rather than withdrawing bolts.
The Verdict
The Allied Seawind 30 is a conservative ketch that prioritizes ballast security and directional stability over pace. Its principal caveat is the balsa-cored deck.
Pros
- Encapsulated lead ballast with no external keel bolts
- Robust hull laminate in the bilge
- Long-keel directional stability
- Clear distinction between early and late interior trim
Cons
- Balsa-core rot if deck fittings leak
- Keel repairs require cutting into the laminate
