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Sailboat Specifications

Ct 47

Cutter · Sheel Keel

Designed by Kauffman & Ladd · Built by Ta Chaio Shipbuilding Co. (Taiwan) · First built 1981

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LOA 46.92 ft  ·  Beam 13.16 ft  ·  Displacement 29,395.00 lb  ·  Sail Area 908.00 ft²  ·  Cutter  ·  Sheel Keel
About the Ct 47 Sailboat

Built by Taiwan's Ta Chaio Shipbuilding from 1981 onward, this 47-foot cutter represents classic offshore cruising design from the Kauffman & Ladd drawing board. With only 80 hulls completed during its production run, the Ct 47 has earned recognition among serious blue-water sailors for its robust construction and seaworthy proportions. The design emphasizes comfort and stability over pure performance, evident in its conservative 15.32 sail area to displacement ratio and excellent 36.41 comfort ratio. The generous beam of 13.16 feet provides spacious accommodations below, while the moderate 6-foot draft with shoal keel configuration opens up more cruising grounds than deeper alternatives. At nearly 30,000 pounds displacement with 12,000 pounds of ballast, this substantial cruiser offers the stability and carrying capacity serious voyagers demand. The cutter rig configuration provides excellent sail handling versatility, particularly valuable during offshore passages where sail reduction options prove crucial. Ta Chaio's reputation for solid fiberglass construction during this era adds confidence for prospective owners considering extended cruising. With a hull speed of 8.21 knots and favorable capsize screening of 1.71, the Ct 47 strikes an appealing balance between passage-making ability and safety margins for offshore adventures.

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Dimensions & Specifications
LOA (Length Overall) 46.92 ft / 14.30 m
LWL (Waterline Length) 37.50 ft / 11.43 m
Beam 13.16 ft / 4.01 m
Max Draft 6.00 ft / 1.83 m
Displacement 29,395.00 lb / 13,333 kg
Ballast 12,000.00 lb / 5,443 kg
Sail Area (Reported) 908.00 ft² / 84.36 m²
Design & Construction
Hull Type Sheel Keel
Rigging Type Cutter
Construction FG
Designer Kauffman & Ladd
Builder Ta Chaio Shipbuilding Co. (TAIWAN)
First Built 1981
Number Built 80
Related Sailboats Valiant 47 · Tayana 47 Cc · Stevens 47 · Hylas 47 · Bristol 477
Owner Reviews

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Engine & Accommodations
Engine Make Perkins
Engine Model 4154
Engine Type Diesel
Frequently Asked Questions

What is the Ct 47's sail area to displacement ratio?

The Ct 47 has a Sail Area to Displacement ratio (SA/D) of 15.32. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Ct 47's comfort ratio?

The Ct 47 has a Ted Brewer Comfort Ratio of 36.41. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Ct 47 safe for offshore sailing?

The Ct 47 has a Capsize Screening Formula value of 1.71. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Ct 47?

The theoretical hull speed of the Ct 47 is 8.21 kn knots, calculated from its waterline length.

How much does a Ct 47 weigh?

The Ct 47 has a displacement of 29,395.00 lb and a length overall (LOA) of 46.92 ft.

Who designed the Ct 47?

The Ct 47 was designed by Kauffman & Ladd, first built in 1981.