The Island Trader 46 is a quintessential example of the "Taiwanese Ketch" era, a period in the late 1970s and early 1980s when yards in the Far East produced heavily built, traditional-looking cruising yachts for the American and European markets. Typically imported by Marine Trading International (MTI), the 46 is often credited to the design influence of William Garden, whose romantic, clipper-bowed aesthetics defined the brand’s identity across its range. While sometimes marketed as a motorsailer due to its high-volume hull and substantial engine plants, the Island Trader 46 remains a dedicated long-range cruiser for those who prioritize sea-kindliness and interior volume over raw speed.
Island Trader 46 Information, Review, Specs

- Make
- Island Trader
- Model
- 46
- Builder
- Marine Trading International (TAIWAN)
- Designer
- Floyd Ayers
- Number Built
- Production Year(s)
- 1981 - ??
Sailing Performance & Handling
The Island Trader 46 is a heavy-displacement vessel designed for directional stability rather than agility. With a displacement-to-length (D/L) ratio often exceeding 300 and a Sail Area-to-Displacement (SA/Disp) ratio hovering between 8 and 11, the boat is decidedly under-canvased for light-air performance. According to technical assessments found in Practical Sailor’s review of the brand's smaller models, these boats typically require a stiff breeze (15+ knots) to truly find their stride.
Under sail, the masthead ketch rig allows for a versatile sail plan, enabling the crew to "reef by the numbers"—dropping the mainsail entirely and sailing under "jib and jigger" (headsail and mizzen) during heavy weather. This configuration keeps the center of effort low and minimizes heeling. The full keel and considerable weight (approximately 48,000 lbs) contribute to a staggering Motion Comfort Ratio in the high 40s, meaning the boat possesses an incredibly "soft" motion in a seaway. While it tracks exceptionally well and can hold a course for hours with minimal helm correction, its long keel makes maneuvering in tight marinas a challenge, often requiring a skilled hand or a retrofitted bow thruster.
Interior Comfort & Variations
The interior of the Island Trader 46 is characterized by the expansive use of tropical hardwoods, typically teak and mahogany, which earned the brand a reputation for "palatial" living spaces. The 46-foot hull provides a significantly beamier platform (over 15 feet) than its smaller siblings, allowing for a voluminous main salon and multiple cabin configurations.
Standard layouts usually feature a large aft master stateroom with a centerline queen berth and a private head, often including a sit-in bathtub—a rare luxury on a sailboat of this size. Forward, the vessel typically offers a second private stateroom and a V-berth or bunk-room, depending on whether the boat was configured for private use or the charter trade. Sibling models built on similar lines include the Island Trader 41 (a William Garden-designed "Yankee Clipper" style), the slightly smaller 45, and the larger 51. The 46 is often distinguished from its siblings by its center-cockpit layout and the inclusion of a more robust engine—frequently the 120hp Ford Lehman—which facilitates comfortable motoring when the wind fails.
Known Issues & Buyer’s Checklist
Prospective buyers should approach the Island Trader 46 with the understanding that early Taiwanese fiberglass construction varied in quality. The "leaky teaky" moniker common to this era refers to the high maintenance required for extensive exterior woodwork and teak-over-fiberglass decks.
- Deck Core Integrity: The teak decks are typically fastened with hundreds of screws. Over decades, the bedding compound around these screws fails, allowing water to migrate into the plywood deck core. Any buyer should insist on a thorough moisture test and "sounding" of the decks.
- Fuel and Water Tanks: Many Island Traders were fitted with black iron fuel tanks or fiberglass-encased stainless steel water tanks. These are known to corrode or leak over time, and because they were often installed before the interior cabinetry, replacement can be an invasive and expensive project.
- Chainplates and Rigging: The internal chainplates are prone to crevice corrosion where they pass through the deck. Inspection of these and the original wooden spars (if the boat has not been converted to aluminum) is critical.
- Rudder Stock & Fittings: Reports on Practical Sailor suggest that some models from this builder suffered from inadequate support for the rudder stock and the use of gate valves instead of proper marine seacocks. Replacing these with modern bronze or composite seacocks is a standard safety upgrade.
Community & Resources
While there is no single, active manufacturer-backed association remaining, owners of the Island Trader 46 often congregate in broader "Taiwanese Boat" forums and groups dedicated to William Garden designs. The "Peterson / Formosa 46" groups occasionally overlap in technical knowledge, as these vessels share similar construction philosophies and hardware challenges common to 1980s Taiwanese yards.
The Verdict
The Island Trader 46 is a traditionalist's cruiser, offering a level of comfort and aesthetic charm that modern, lightweight production boats rarely match. It is not a boat for the impatient or the maintenance-averse, but for a liveaboard or a world-cruiser seeking a stable, secure platform, it remains a compelling value.
Pros:
- Exceptional motion comfort in heavy seas.
- Massive interior volume with high-quality traditional joinery.
- Versatile ketch rig for easy shorthanded sail management.
- Large engine and fuel capacity for long-range motoring.
Cons:
- Poor light-wind sailing performance.
- High maintenance requirements for teak decks and exterior wood.
- Difficult to maneuver in tight quarters without a thruster.
- Potential for significant "hidden" refit costs (tanks, deck cores).
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Full
- Rudder
- 1x Attached
- Ballast
- 8500 lbs
- Displacement
- 48363 lbs
- Water Capacity
- 100 gal
- Fuel Capacity
- 500 gal
Dimensions
- Length Overall (LOA)
- 45.5 ft
- Waterline Length (LWL)
- 39.75 ft
- Beam
- 15.17 ft
- Draft
- 5.5 ft
- Max Headroom
- 6.67 ft
- Air Draft
- -
Rig & Sails
- Rig Type
- Ketch
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 642 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 7.74
- Ballast / Displacement Ratio
- 17.58
- Displacement / Length Ratio (D/L) Ratio
- 343.76
- Comfort Ratio
- 48.21
- Capsize Screening Formula
- 1.67
- Hull Speed
- 8.45 kn