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Sailboat Specifications

Thompson 590

Cat (Marconi) · Lifting Keel

Designed by Steve Thompson · First built 2000

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LOA 19.19 ft  ·  Beam 9.12 ft  ·  Displacement 794.00 lb  ·  Sail Area 273.00 ft²  ·  Cat (Marconi)  ·  Lifting Keel
About the Thompson 590 Sailboat

Produced by Thompson Boat Company, the 590 is a vintage American fiberglass sailboat that reflects the accessible, family-oriented sailing culture that flourished in the mid-twentieth century. Designed with casual cruising and relaxed daysailing in mind, this boat appeals to sailors seeking an affordable entry point into the hobby or a nostalgic project vessel worth restoring. With limited specifications publicly documented, much of the 590's character is best understood through the hands-on experience of those who have owned and sailed her. Thompson built their boats with practicality and simplicity at the forefront, making them generally approachable for beginner and intermediate sailors alike. The fiberglass construction, common across Thompson's lineup, offers reasonable durability and relatively straightforward maintenance compared to older wooden alternatives of the same era. The 590 is best suited to calm inland waters, lakes, and sheltered coastal environments rather than offshore passages. For the sailor who prioritizes leisurely weekend outings over performance racing, this boat offers an unpretentious and charming option. Prospective buyers are encouraged to seek out owner communities and surviving documentation to fill in the gaps left by limited official records.

Dimensions & Specifications
LOA (Length Overall) 19.19 ft / 5.85 m
Beam 9.12 ft / 2.78 m
Max Draft 5.25 ft / 1.60 m
Displacement 794.00 lb / 360 kg
Ballast 309.00 lb / 140 kg
Sail Area (Reported) 273.00 ft² / 25.36 m²
Design & Construction
Hull Type Lifting Keel
Rigging Type Cat (Marconi)
Construction FG
Designer Steve Thompson
First Built 2000
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Frequently Asked Questions

What is the Thompson 590's sail area to displacement ratio?

The Thompson 590 has a Sail Area to Displacement ratio (SA/D) of 51.03. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

Is the Thompson 590 safe for offshore sailing?

The Thompson 590 has a Capsize Screening Formula value of 3.94. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

How much does a Thompson 590 weigh?

The Thompson 590 has a displacement of 794.00 lb and a length overall (LOA) of 19.19 ft.

Who designed the Thompson 590?

The Thompson 590 was designed by Steve Thompson, first built in 2000.