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Sailboat Specifications

Newporter

Masthead Ketch · Long Keel

Designed by Ackerman · Built by Ackerman Boat Works/Dorchester Shipbuilding · First built 1955

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LOA 40.00 ft  ·  Beam 13.00 ft  ·  Displacement 24,000.00 lb  ·  Sail Area 683.00 ft²  ·  Masthead Ketch  ·  Long Keel
About the Newporter Sailboat

Crafted for comfortable coastal and offshore cruising, the Newporter is a classic American sailboat that earned a loyal following among liveaboards and long-distance sailors throughout the latter half of the twentieth century. Built by Newporter Marine in Costa Mesa, California, these boats developed a reputation for being sturdy, full-keel cruisers with an emphasis on seaworthiness and interior livability over racing performance. The Newporter's traditional design reflects an era when blue-water capability and honest sailing manners were prized above speed. With a full keel offering directional stability and protection for the rudder, the boat tracks well in open water and handles rough conditions with a reassuring steadiness. The interior accommodations tend to be generous for the hull size, making the Newporter a practical choice for extended passages or weekend getaways. While performance-oriented sailors may find her sailing style conservative, those seeking a dependable and character-filled cruiser will appreciate the Newporter's solid construction and timeless aesthetic. She remains a respected option on the used market for buyers prioritizing comfort and reliability.

Dimensions & Specifications
LOA (Length Overall) 40.00 ft / 12.19 m
LWL (Waterline Length) 30.42 ft / 9.27 m
Beam 13.00 ft / 3.96 m
Max Draft 5.67 ft / 1.73 m
Displacement 24,000.00 lb / 10,886 kg
Ballast 4,000.00 lb / 1,814 kg
Sail Area (Reported) 683.00 ft² / 63.45 m²
Design & Construction
Hull Type Long Keel
Rigging Type Masthead Ketch
Construction Wood
Designer Ackerman
Builder Ackerman Boat Works/Dorchester Shipbuilding
First Built 1955
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Frequently Asked Questions

What is the Newporter's sail area to displacement ratio?

The Newporter has a Sail Area to Displacement ratio (SA/D) of 13.19. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Newporter's comfort ratio?

The Newporter has a Ted Brewer Comfort Ratio of 36.59. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Newporter safe for offshore sailing?

The Newporter has a Capsize Screening Formula value of 1.81. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Newporter?

The theoretical hull speed of the Newporter is 7.39 knots, calculated from its waterline length.

How much does a Newporter weigh?

The Newporter has a displacement of 24,000.00 lb and a length overall (LOA) of 40.00 ft.

Who designed the Newporter?

The Newporter was designed by Ackerman, first built in 1955.