The Concept 40 is an American sailboat, that was designed by Gary Mull and first built in 1981.
[1][5] The boat was built by Concept Yachts in the United States, starting in 1981 and also by Hyundai of Seoul, South Korea.
[1][5] The Concept 40 is a small recreational keelboat, built predominantly of fiberglass.
It has a masthead sloop rig and a fixed wing keel.
It is powered by a Pathfinder diesel engine of 42 hp (31 kW).