Maule Air, Inc. is a manufacturer of light, single-engined, short take-off and landing (STOL) aircraft, based in Moultrie, Georgia, U.S.

He founded the company Mechanical Products Co. in Napoleon, Michigan to market his own starter design.

In 1953 he began design work, and started aircraft production with the "Bee-Dee" M-4 in 1957.

[3] The aircraft produced by Maule Air are tube-and-fabric designs and are popular with bush pilots[4] thanks to their very low stall speed, tundra tires and oleo strut landing gear.

Most Maules are built with tailwheel or amphibious configurations, although the newer MXT models have tricycle gear.