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Sailboat Specifications

Tartan 40 Offshore

Masthead Ketch · Fin With Rudder On Skeg

Designed by Sparkman & Stephens · Built by Tartan Marine · First built 1976

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LOA 40.00 ft  ·  Beam 13.33 ft  ·  Displacement 26,000.00 lb  ·  Sail Area 788.00 ft²  ·  Masthead Ketch  ·  Fin With Rudder On Skeg
About the Tartan 40 Offshore Sailboat

Built for sailors who demand both performance and seaworthiness, this substantial cruiser from Tartan Marine represents the builder's commitment to offshore capability. The design emphasizes the robust construction and thoughtful engineering that made Tartan a respected name among serious cruising sailors. While detailed specifications remain limited, the "Offshore" designation speaks volumes about the boat's intended purpose. This vessel was conceived for extended passages and challenging conditions, featuring the kind of heavy-duty construction and conservative design philosophy that inspires confidence in open water. The hull form likely emphasizes seaworthiness over pure speed, with generous beam and displacement providing stability and comfortable motion in a seaway. Tartan's reputation for quality construction suggests this model incorporates the builder's signature attention to detail, from robust rigging systems to well-engineered deck layouts. The cockpit and interior arrangements would have been designed with extended cruising in mind, balancing comfort with functionality for serious passage-making. For sailors seeking a proven platform for coastal and offshore cruising, this represents Tartan's philosophy of building boats that prioritize safety and reliability over flashy performance numbers.

Dimensions & Specifications
LOA (Length Overall) 40.00 ft / 12.19 m
LWL (Waterline Length) 36.00 ft / 10.97 m
Beam 13.33 ft / 4.06 m
Max Draft 4.75 ft / 1.45 m
Displacement 26,000.00 lb / 11,793 kg
Ballast 10,000.00 lb / 4,536 kg
Sail Area (Reported) 788.00 ft² / 73.21 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Ketch
Construction FG
Designer Sparkman & Stephens
Builder Tartan Marine
First Built 1976
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Frequently Asked Questions

What is the Tartan 40 Offshore's sail area to displacement ratio?

The Tartan 40 Offshore has a Sail Area to Displacement ratio (SA/D) of 14.42. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Tartan 40 Offshore's comfort ratio?

The Tartan 40 Offshore has a Ted Brewer Comfort Ratio of 34.32. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Tartan 40 Offshore safe for offshore sailing?

The Tartan 40 Offshore has a Capsize Screening Formula value of 1.8. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Tartan 40 Offshore?

The theoretical hull speed of the Tartan 40 Offshore is 8.04 knots, calculated from its waterline length.

How much does a Tartan 40 Offshore weigh?

The Tartan 40 Offshore has a displacement of 26,000.00 lb and a length overall (LOA) of 40.00 ft.

Who designed the Tartan 40 Offshore?

The Tartan 40 Offshore was designed by Sparkman & Stephens, first built in 1976.