Boeing B-17 Flying Fortress
Aircraft / Project / Craft· 2 declassified document(s)
Also: B-17
The Boeing B-17 Flying Fortress was a four-engine heavy bomber developed in the 1930s for the United States Army Air Corps. Operating primarily in the European theater of World War II, B-17 crews were among the first to report encounters with 'foo fighters'—mysterious, fast-moving glowing orbs that paced their bomber formations. These wartime reports form a crucial early chapter in military UAP history.
B-17 crews were among the first to report 'foo fighters' over the European theater during World War II.