Boeing delivered more than 1,000 707s between 1958 and 1994, and more than 800 KC-135s between 1957 and 1965. More than 500 U.S. Air Force KC-135s remain in service.
Boeing 367-80
The Boeing 367-80, better known as the Dash 80, first flew on 15 July 1954. It entered service as the Boeing 707. The 707 flew 100 miles per hour faster than the de Havilland Comet and was significantly larger. The new Boeing had a maximum range of more than 3,500 miles.