Detroit Aircraft Corporation

The Detroit Aircraft Corporation was incorporated in Detroit, Michigan on July 10, 1922, as the Aircraft Development Corporation. The name was changed in 1929. The Detroit corporation owned the entire capital stock of the Ryan Aircraft Corp., Aircraft Development Corp., Aviation Tool Co., Groose Airport, Inc., Marine Aircraft Corp., Park's Air College and Affiliated Companies, Detroit Aircraft Export Co., Gliders, Inc., and Eastman Aircraft Corp. It also owned a 90% interest in the Blackburn Aeroplane and Motor Company, practically all of the capital stock of the Lockheed Aircraft Company and a 40% interest in Winton Aviation Engine Co. During the Great Depression the Detroit Aircraft holding company found that rising losses from other operations were draining the company coffers. On October 27, 1931, the Detroit Aircraft Corporation went into receivership.

Ryan Aircraft Corporation: Incorporated into Detroit Aircraft on July 5, 1929., Ryan Aircraft acquired the assets and business of the Mahoney-Ryan Aircraft Corporation, the successor to Ryan Air Lines. Ryan Aircraft manufactured four and six-place cabin monoplanes at their St. Louis facility, adjacent to the municipal airport. The Detroit Aircraft Corporation owned Ryan Aircraft's entire capital stock.

Aircraft Development Corporation: Incorporated on July 12, 1929, in Michigan to take over and continue development and construction of "metal-clad" airships for commercial, military and naval uses. Company held patents covering design and construction of "Metalclad" rigid airships and airship mooring towers. The first "Metalclad" airship, the ZMC-2, was constructed for the U.S. Navy in 1929. Detroit Aircraft Corp. owned entire capital stock.Edsel Ford, William May and William Stout, invested in the venture in an effort to make Detroit the manufacturing center of the dirigible industry. The Ford name was not closely associated with the ZMC-2 at the insistence of Henry and Edsel Ford, but Ford laboratories, on the property of the newly completed Ford Airport conducted tests on the ZMC-2 and paid $500,000 for the 225-foot (69 m) dirigible mooring at Ford's airport

...
Wikipedia