The Grumman Aircraft Engineering Corporation, later Grumman Aerospace Corporation, was a leading producer of military and civilian aircraft of the 20th century. Founded in 1929 by Leroy Grumman with Jake Swirbul, its independent existence ended in a 1994 merger with the Northrop Corporation to form Northrop Grumman.

History

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Leroy Grumman and others worked for the Loening Aircraft Engineering Corporation in the 1920s, but when it was bought by Keystone Aircraft Corporation and the operations moved from New York City to Pennsylvania, Grumman and his partners (Edmund Ward Poor, William Schwendler, Jake Swirbul, and Clint Towl) started their own company in an old Cox-Klemin Aircraft Co. factory in Baldwin on Long Island, NY.

The company filed as a business on 5 December 1929, and opened its doors 2 January 1930. Keeping busy by welding aluminum tubing for truck frames, the company eagerly pursued contracts with the US Navy. Grumman designed the first practical floats with a retractable landing gear for the Navy, and this launched Grumman into the aviation market. The first Grumman aircraft was also for the Navy, the Grumman FF-1, a biplane with retractable landing gear. This was followed by a number of other successful designs. As the company grew, it moved to Valley Stream, New York, then Farmingdale, New York, finally ending up at Bethpage, New York, all located on Long Island as well. Grumman's products were considered so reliable and ruggedly built that the company was often referred to as the "Grumman Iron Works."

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