The Boeing B-17 Flying Fortress was one of the United States' standard heavy bombers until the arrival of the Boeing B-29 Superfortress in 1944. The B-17 served in almost every theater of World War II, but was used mostly by the U.S. Eighth Air Force, based in the UK, to bombard German targets.
This is the story of one such B-17 pilot and crew who terrified the Germans: