First Flight of the B-17

Date: July 28, 1935 • Location: Berlin, Germany

First flight of the Boeing B-17 Flying Fortress.

The Boeing B-17 Flying Fortress is an American four-engined heavy bomber aircraft that was developed in the mid-1930s for the United States Army Air Corps (USAAC). A fast and high-flying bomber used primarily in the European Theater of Operations, the B-17 dropped more bombs than any other aircraft during World War II. It is the third-most produced bomber in history, behind the American four-engined Consolidated B-24 Liberator and the German multirole, twin-engined Junkers Ju 88. The B-17 was also employed in transport, anti-submarine warfare, and search and rescue roles.