The B-17, also known as the Flying Fortress, is a heavy bomber aircraft developed by Boeing in the 1930s. It played a crucial role during World War II, primarily in the European theater, where it was used for strategic bombing missions. The B-17 is known for its durability, ability to sustain heavy damage, and its distinctive design featuring four engines and a large wingspan. Equipped with advanced technology for its time, the B-17 could carry a significant payload of bombs and had multiple defensive machine gun positions. Its contributions to the war effort helped shape air combat strategies and solidified its place in aviation history.