Boeing B-17F Flying Fortress

The Boeing B-17F Flying Fortress was the third production variant of the B-17 bomber series developed during World War II. Boeing introduced the F model in 1942. This version included significant improvements, including a redesigned nose section, upgraded engines, and enhanced defensive armament. Over 3,400 B-17F bombers were built between 1942 and 1943. The F model was heavily used during the crucial 1943 daylight bombing campaigns over Europe.

The B-17F was powered by four Wright R-1820-97 radial engines producing 1,200 horsepower each. The B-17F's maximum speed was 299 mph and had a service ceiling of 37,500 feet. The aircraft could carry up to 9,600 pounds of bombs. Defensive armament included up to eleven .50 caliber machine guns in various positions. The F model's combat experience led to the heavily armed B-17G variant, which modified defensive armament positions and increased the number of machine guns to 13.