Design Brief & Intent
Bruce King designed this yacht for serious, long-distance blue-water passagemaking, specifically targeting sailors who prioritized structural integrity, comfort in heavy seas, and the ability to carry heavy cruising payloads over short-term racing performance. In an era when production boatbuilders were increasingly turning toward lighter laminate schedules and flatter hull forms to save costs and boost speed, the Tradewind 55 stood as a defiant, traditional alternative. It was conceived as a true luxury cruiser capable of navigating high-latitude routes or circumnavigating the globe via the trade winds.
The interior of the Tradewind 55 speaks to this blue-water intent, emphasizing security at sea and high-end joinery. While many hulls were completed as semi-custom projects or high-end kits under the Yachtcraft banner, the fit-out typically features heavy, hand-finished hardwoods like teak or cherry. Rather than the wide-open, loft-like cabins of modern charter vessels, the interior layout is divided into functional, secure spaces with deep handholds, heavily consolidated companionways, and secure galleys that remain usable even when the vessel is heavily heeled. Visibility and natural light are prioritized through a raised-deck configuration, while the expansive cabin trunk provides generous headroom throughout. The accommodation plan generally centers around a massive master stateroom, often situated aft with private access, complemented by forward guest quarters and dedicated passage berths to ensure comfortable sleeping arrangements for off-watch crew during long oceanic legs.
Variations & Configurations
Due to its semi-custom nature and history of limited production runs, the Tradewind 55 can be found in several distinct configurations. While the original Islander 55 was heavily associated with a powerful ketch rig to break down the massive sail area into manageable portions for short-handed couples, the Tradewind 55 models built from 1980 onward were frequently configured as cutter-rigged masthead sloops. This cutter configuration allows for a highly versatile sail plan, enabling owners to easily adapt to rising winds by dropping a genoa and running with a staysail and reefed main.
Under the waterline, variations also exist regarding draft and keel design. The standard Tradewind 55 is built with a deep, high-ballast fin keel and a substantial skeg-hung rudder, drawing five feet nine inches. This configuration maximizes directional tracking and structural simplicity. However, some hulls built from these molds retained the centerboard configuration of the original Bruce King design, which utilized a heavy bronze centerboard housed within a shallow-draft ballast keel. This centerboard variant allowed for an exceptional draft range—extending from less than six feet for coastal exploring and entering shallow marinas, to over eleven feet when fully lowered to optimize upwind tracking and reduce leeway during ocean crossings.
Sailing Performance & Handling
The sailing characteristics of the Tradewind 55 are defined by its significant displacement and Bruce King's signature approach to hull form. With a heavy displacement of thirty-eight thousand pounds, the vessel possesses a very high displacement-to-length ratio of 363.6, placing it squarely in the traditional, heavy-displacement category. On the water, this translates to a remarkable amount of physical momentum. The hull slices through choppy head seas with a steady, sea-kindly motion, entirely avoiding the violent pounding and hobby-horsing that plague modern, flat-bottomed cruising designs.
The vessel's stability is further enhanced by a ballast-to-displacement ratio of 42.11 percent. With more than sixteen thousand pounds of lead ballast secured low in the keel, the boat exhibits impressive stiffness, easily resisting initial heel and standing up to its canvas in a stiff breeze. This robust stability is reflected in its high comfort ratio of 41.99, which physically manifests as a slow, predictable roll period that minimizes crew fatigue over long stretches at sea. This sea-kindliness is paired with a highly reassuring capsize screening ratio of 1.67, indicating that the hull form has exceptionally high natural resistance to roll-overs and a strong self-righting capability.
While the sail area-to-displacement ratio of 16.02 indicates a conservative, moderate sail plan, the Tradewind 55 is far from sluggish. In moderate-to-heavy trade winds, the long waterline length of thirty-six feet allows the vessel to easily reach and maintain its theoretical hull speed of eight knots. At the helm, the tracking is exceptionally directional, feeling as though the boat is sailing on rails, which places very little strain on steering gear or autopilots. The primary trade-off for this tracking ability is a wide turning radius, making tight maneuvering under power in crowded marinas a deliberate exercise that requires careful planning.
Known Issues & Triage
For prospective buyers and current owners, the age and limited production of the Tradewind 55 demand specific maintenance triage. One of the most significant mechanical hurdles lies in the original engine installations. Many early units were powered by Chrysler marinized diesel engines—specifically the Chrysler Nissan SD33 or the Chrysler-Mitsubishi six-cylinder diesels. While these engines are historically reliable and durable, sourcing marinized replacement parts such as heat exchangers, exhaust elbows, water pumps, and gasket sets has become increasingly difficult. Sourcing parts often requires deep dives into vintage industrial and agricultural machinery networks, making a complete engine repower a common and logical upgrade for vessels undergoing preparation for serious blue-water voyaging.
Structurally, the deck and hull-to-deck joints require careful inspection. Like most vessels of this era, the decks are balsa-cored, and over forty years of exposure can lead to water intrusion. Wet or rotting core material is commonly found around highly loaded deck fittings, including chainplates, stanchion bases, and the tracks for the jib sheets. Triage involves local recoring with epoxy and high-density foam, followed by rebedding all hardware.
Additionally, because many of these boats were finished as owner-completed kits or semi-custom builds, the quality of the original electrical wiring, plumbing runs, and interior joinery can vary widely from hull to hull. While some exhibit world-class professional craftsmanship, others may suffer from substandard amateur wiring installations that require a complete, top-to-bottom marine electrical overhaul to meet modern safety standards.
Modernization & Upgrades
Veteran owners of the Tradewind 55 have focused their refit budgets on transforming these classic cruisers into self-sustaining offshore homes. Replacing the obsolete Chrysler drivetrain with a modern, high-torque diesel engine—typically a Yanmar or John Deere unit—is the cornerstone of a serious refit. Modern propulsion upgrades not only resolve the parts availability issue but also dramatically improve fuel efficiency and reliability.
On the electrical side, the massive interior volume of the Tradewind 55 makes it an ideal candidate for modern lithium iron phosphate battery conversions. Replacing the heavy, legacy lead-acid house banks with a high-capacity lithium system allows owners to run high-load appliances, such as watermakers, induction cooktops, and air conditioning units, directly off the inverter. This reduction in dependency on a diesel generator is highly valued in remote cruising grounds. To support these banks, owners frequently install high-output alternators with external smart regulators and mount expansive solar arrays on custom stern arches, seamlessly blending modern energy independence with the vessel's classic lines.
The Verdict
The Tradewind 55 is a specialized tool for the serious mariner who views a yacht as a safe, predictable protector rather than a racing machine. While its heavy displacement and traditional hull form mean it will never compete with modern light-displacement cruisers in light air or downwind surfing, its bulletproof construction, exceptional tracking, and comfortable motion in heavy weather offer a level of security that few contemporary boats can match. For a buyer willing to invest in modernizing its systems, this Bruce King classic remains a premier choice for long-distance cruising.
Pros
- Exceptional directional tracking and stability in heavy seas, minimizing helmsman and autopilot fatigue.
- Highly comfortable and sea-kindly motion with a high comfort ratio that dramatically reduces physical strain on the crew.
- Sturdy, heavily laid fiberglass hull and high ballast ratio providing superior structural safety margins in extreme weather.
- Spacious, highly customizable semi-custom interior layouts that feature rich, traditional wood joinery.
- Excellent safety and righting margins with a very low capsize screening factor.
Cons
- Obsolete original Chrysler marine engines present significant challenges for sourcing mechanical spares and often require complete repowering.
- Wide turning radius and heavy displacement make close-quarters maneuvering under power in tight marinas highly challenging.
- Variable build and system quality across hulls due to the prevalence of owner-completed kit finishes.
- Vulnerability to deck core rot around aging deck fittings, necessitating labor-intensive recoring and rebedding.
- Moderate sail-area-to-displacement ratio results in relatively sluggish performance in light air.
