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Sailboat Specifications

Duxbury Duck

Fractional Sloop · Centerboard (Trunk)

Designed by John C. Alden · Built by George Shiverick/George Chaisson (Usa) · First built 1925

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LOA 18.00 ft  ·  Beam 6.33 ft  ·  Displacement 700.00 lb  ·  Sail Area 342.00 ft²  ·  Fractional Sloop  ·  Centerboard (Trunk)
About the Duxbury Duck Sailboat

Designed by renowned naval architect John C. Alden in 1925, this classic 18-footer represents the golden age of wooden small-boat construction. Built by skilled craftsmen George Shiverick and George Chaisson, only 60 of these charming centerboard sloops were ever constructed, making them highly sought-after classics today. The Duxbury Duck's traditional wood-planked hull and fractional sloop rig embody Alden's signature blend of seaworthiness and elegance. With her moderate beam and shallow 2.5-foot draft courtesy of the centerboard configuration, she's perfectly suited for exploring shoal waters, protected bays, and coastal cruising where deeper keelboats fear to venture. The generous sail area of 342 square feet provides spirited performance in light to moderate conditions. Her favorable comfort ratio of 5.8 indicates a boat that moves easily through the water without harsh motion, while the capsize screening formula of 2.85 suggests good stability for coastal adventures. The hull speed of 5.2 knots delivers respectable performance for leisurely day sailing and short coastal hops. This design appeals to traditionalists who appreciate fine craftsmanship, classic aesthetics, and the unique sailing characteristics that only vintage wooden boats can provide. Perfect for sailors seeking an authentic connection to sailing's rich heritage.

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Dimensions & Specifications
LOA (Length Overall) 18.00 ft / 5.49 m
LWL (Waterline Length) 15.08 ft / 4.60 m
Beam 6.33 ft / 1.93 m
Max Draft 2.50 ft / 0.76 m
Min Draft 0.58 ft / 0.18 m
Displacement 700.00 lb / 318 kg
Sail Area (Reported) 342.00 ft² / 31.77 m²
Design & Construction
Hull Type Centerboard (Trunk)
Rigging Type Fractional Sloop
Construction Wood planked
Designer John C. Alden
Builder George Shiverick/George Chaisson (USA)
First Built 1925
Number Built 60
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Frequently Asked Questions

What is the Duxbury Duck's sail area to displacement ratio?

The Duxbury Duck has a Sail Area to Displacement ratio (SA/D) of 69.52. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Duxbury Duck's comfort ratio?

The Duxbury Duck has a Ted Brewer Comfort Ratio of 5.8. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Duxbury Duck safe for offshore sailing?

The Duxbury Duck has a Capsize Screening Formula value of 2.85. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Duxbury Duck?

The theoretical hull speed of the Duxbury Duck is 5.20 kn knots, calculated from its waterline length.

How much does a Duxbury Duck weigh?

The Duxbury Duck has a displacement of 700.00 lb and a length overall (LOA) of 18.00 ft.

Who designed the Duxbury Duck?

The Duxbury Duck was designed by John C. Alden, first built in 1925.