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Sailboat Specifications

Concept 40

Masthead Sloop · Wing Keel

Designed by Gary Mull · Built by Concept/Hyundai · First built 1981

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LOA 40.00 ft  ·  Beam 12.75 ft  ·  Displacement 19,000.00 lb  ·  Sail Area 769  ·  Masthead Sloop  ·  Wing Keel
About the Concept 40 Sailboat

With limited specifications available, the Concept 40 represents a somewhat elusive entry in the 40-foot sailing yacht category. This relative scarcity of detailed information suggests either a specialized or limited-production vessel that may have targeted a specific niche within the sailing community. Based on its 40-foot length, this sailboat would typically fall into the performance cruising or club racing segment, offering sufficient size for comfortable coastal cruising while maintaining the agility needed for competitive sailing. Boats in this size range generally strike an appealing balance between handling characteristics that allow for short-handed sailing and interior volume adequate for extended passages or weekend getaways. The Concept 40's obscure status in readily available documentation could indicate it was either a boutique design from a smaller builder or perhaps a model that had a brief production run. This rarity might actually appeal to sailors seeking something distinctive, though it could present challenges for parts availability and resale value. Without comprehensive specifications, potential buyers should conduct thorough research and sea trials to understand the boat's construction quality, sail handling systems, and overall condition before making purchasing decisions.

Dimensions & Specifications
LOA (Length Overall) 40.00 ft / 12.19 m
LWL (Waterline Length) 31.83 ft / 9.70 m
Beam 12.75 ft / 3.89 m
Max Draft 7.00 ft / 2.13 m
Displacement 19,000.00 lb / 8,618 kg
Ballast 9,100.00 lb / 4,128 kg
Ballast Type Iron
Sail Area (Reported) 769
Design & Construction
Hull Type Wing Keel
Rigging Type Masthead Sloop
Construction FG
Designer Gary Mull
Builder Concept/Hyundai
First Built 1981
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Engine & Accommodations
Horsepower 42
Frequently Asked Questions

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

The Concept 40 has a Sail Area to Displacement ratio (SA/D) of 17.35. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Concept 40's comfort ratio?

The Concept 40 has a Ted Brewer Comfort Ratio of 28.87. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Concept 40 safe for offshore sailing?

The Concept 40 has a Capsize Screening Formula value of 1.91. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Concept 40?

The theoretical hull speed of the Concept 40 is 7.56 knots, calculated from its waterline length.

How much does a Concept 40 weigh?

The Concept 40 has a displacement of 19,000.00 lb and a length overall (LOA) of 40.00 ft.

Who designed the Concept 40?

The Concept 40 was designed by Gary Mull, first built in 1981.