B-17 Flying Fortress – Castles in the Sky

The Norden bomb sight with which the B-17 model airplane was equipped was reputed to be able to drop a bomb into a pickle barrel from 4000-m. (13,125 ft.).

The B-17 was powered by reliable Wright Cyclone radial engines. They were turbocharged, which enabled the Fortress to operate at higher altitudes than its European contemporaries.