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Sailboat Specifications

Seguin 46

Masthead Sloop · Fin With Rudder On Skeg

Designed by Sparkman & Stephens · Built by Lyman Morse Boatbuilding · First built 1982

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LOA 45.83 ft  ·  Beam 12.83 ft  ·  Displacement 27,400.00 lb  ·  Sail Area 892.00 ft²  ·  Masthead Sloop  ·  Fin With Rudder On Skeg
About the Seguin 46 Sailboat

A capable and spacious bluewater cruiser, the Seguin 46 is designed for sailors who take long-distance passagemaking seriously. Built with offshore confidence in mind, this sloop-rigged cruiser offers the kind of volume and stability that appeals to those planning extended voyages, whether along coastal routes or across open ocean passages. While detailed specifications for the Seguin 46 are limited in wider circulation, the boat carries a reputation as a solid, well-built cruising platform suited to liveaboard life and serious bluewater adventures. Its generous beam and substantial hull suggest comfortable accommodations below deck, a priority for couples or small crews spending extended time at sea. The Seguin 46 sits in a category of cruising sailboats that prioritizes seaworthiness and practicality over racing performance, making it a thoughtful choice for sailors who value reliability and range over raw speed. Prospective buyers are encouraged to seek out existing owners and conduct thorough inspections, as individual examples may vary depending on build year and outfitting. For those drawn to purposeful bluewater cruising, the Seguin 46 is well worth a closer look.

Dimensions & Specifications
LOA (Length Overall) 45.83 ft / 13.97 m
LWL (Waterline Length) 33.54 ft / 10.22 m
Beam 12.83 ft / 3.91 m
Max Draft 6.25 ft / 1.91 m
Displacement 27,400.00 lb / 12,428 kg
Sail Area (Reported) 892.00 ft² / 82.87 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer Sparkman & Stephens
Builder Lyman Morse Boatbuilding
First Built 1982
Related Sailboats Oyster 46 · Little Harbor 46 · Morris 46 · X 452 · Cambria 44
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Frequently Asked Questions

What is the Seguin 46's sail area to displacement ratio?

The Seguin 46 has a Sail Area to Displacement ratio (SA/D) of 15.77. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Seguin 46's comfort ratio?

The Seguin 46 has a Ted Brewer Comfort Ratio of 38.02. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Seguin 46 safe for offshore sailing?

The Seguin 46 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 Seguin 46?

The theoretical hull speed of the Seguin 46 is 7.76 knots, calculated from its waterline length.

How much does a Seguin 46 weigh?

The Seguin 46 has a displacement of 27,400.00 lb and a length overall (LOA) of 45.83 ft.

Who designed the Seguin 46?

The Seguin 46 was designed by Sparkman & Stephens, first built in 1982.