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Sailboat Specifications

Island Trader 41

Staysail Ketch · Long Keel

Designed by William Garden · Built by Transworld Boat Building Co. (Taiwan) · First built 1976

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LOA 40.25 ft  ·  Beam 12.00 ft  ·  Displacement 29,000.00 lb  ·  Sail Area 810.00 ft²  ·  Staysail Ketch  ·  Long Keel
About the Island Trader 41 Sailboat

William Garden's Island Trader 41 represents classic cruising yacht design from the mid-1970s era, embodying the traditional values of seaworthiness and comfort over speed. Built by Transworld Boat Building Co. in Taiwan starting in 1976, this fiberglass cruiser features a distinctive staysail ketch rig and full long keel configuration that prioritizes stability and tracking ability. The yacht's substantial 29,000-pound displacement and generous beam of 12 feet create impressive interior volume while contributing to a remarkably high comfort ratio of 47.5, making her exceptionally well-suited for extended offshore passages and liveaboard cruising. The long keel design, while sacrificing some maneuverability in tight quarters, provides excellent directional stability and the ability to take ground safely in tidal areas. Garden's design philosophy emphasized seakindliness over performance, and the Island Trader 41 delivers accordingly with moderate sail area and conservative proportions. The staysail ketch rig offers versatility in heavy weather, allowing crews to balance the boat effectively under various sail combinations. Her capsize screening formula of 1.57 falls within acceptable offshore parameters, though her design clearly favors comfort and load-carrying capacity over racing potential. This makes her an attractive choice for serious cruising couples seeking a traditional, well-mannered passage maker.

Dimensions & Specifications
LOA (Length Overall) 40.25 ft / 12.27 m
LWL (Waterline Length) 32.00 ft / 9.75 m
Beam 12.00 ft / 3.66 m
Max Draft 6.00 ft / 1.83 m
Displacement 29,000.00 lb / 13,154 kg
Ballast 9,000.00 lb / 4,082 kg
Ballast Type Iron
Sail Area (Reported) 810.00 ft² / 75.25 m²
Design & Construction
Hull Type Long Keel
Rigging Type Staysail Ketch
Construction FG
Designer William Garden
Builder Transworld Boat Building Co. (TAIWAN)
First Built 1976
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Engine & Accommodations
Engine Make Perkins
Engine Model 4-108
Engine Type Diesel
Horsepower 50
Fuel Capacity 60 gals / 227 L
Water Capacity 100 gals / 379 L
Frequently Asked Questions

What is the Island Trader 41's sail area to displacement ratio?

The Island Trader 41 has a Sail Area to Displacement ratio (SA/D) of 13.79. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Island Trader 41's comfort ratio?

The Island Trader 41 has a Ted Brewer Comfort Ratio of 47.5. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Island Trader 41 safe for offshore sailing?

The Island Trader 41 has a Capsize Screening Formula value of 1.57. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Island Trader 41?

The theoretical hull speed of the Island Trader 41 is 7.58 kn knots, calculated from its waterline length.

How much does a Island Trader 41 weigh?

The Island Trader 41 has a displacement of 29,000.00 lb and a length overall (LOA) of 40.25 ft.

Who designed the Island Trader 41?

The Island Trader 41 was designed by William Garden, first built in 1976.