The Boeing B-17 Flying Fortress is a four-engine heavy bomber developed in the 1930s. It played a significant role during World War II, primarily in the European theater, where it was used for strategic bombing missions. Known for its durability and defensive armament, the B-17 could carry a substantial payload of bombs while withstanding considerable damage. Equipped with multiple machine gun positions, the B-17 was designed to protect itself from enemy fighters. Its distinctive boxy shape and large wings made it easily recognizable. The aircraft became an iconic symbol of American air power and contributed significantly to the Allied victory in the war.