Career
Threston started his career in 1959 at Hughes Aircraft Company in the Guided Missile Laboratory, as entry-level engineer he participated in the further development and production of the Falcon Missile system, that the United States Air Force used since 1956. In the 1960s he joined Radio Corporation of America Corporation, where he made significant contributions to the development of the Aegis Combat System. After Radio Corporation of America was acquired by General Electric in 1986 Threston became General Manager of the Naval Systems Department.
His department was part of General Electric Aerospace businesses, which was sold to Martin Marietta in 1992, and became part of Lockheed Martin in 1995.
From General manager and president of manufacturing Threston became company president
