You have, for instance, the Boeing P-8 Poseidon, a naval reconnaissance aircraft derived from the Boeing 737-800 airliner, and then the Boeing C-17, a freighter aircraft that was a clean-sheet design.

Supersonic dreams and cargo realities: the untold story of how the 747 got its signature shape, and why it wasn't meant to be a double-decker.

A Boeing 747 is one of the most popular exhibits at the Delta Flight Museum in Atlanta. This particular plane was the first Boeing 747-400 ever made and entered service in 1989. The jet flew for Delta ...