McDonnell Douglas

McDonnell Douglas was a major American aircraft manufacturing company. It was formed by the merger of McDonnell Aircraft and the Douglas Aircraft Company in 1967. In 1997 it merged with Boeing. The company designed and built a number of well-known commercial and military aircraft such as the DC-10 airliner and F-15 Eagle air-superiority fighter.
McDonnell Douglas was based at Lambert–St. Louis International Airport near St. Louis, Missouri. The McDonnell Douglas Technical Services Company (MDTSC), headquarters were in unincorporated St. Louis County, Missouri.