From July, 1935 to April of 1945 Boeing, Douglas, Lockheed-Vega built 12,731 B-17s. The bomber was dubbed the Flying Fortress because of its defensive firepower — thirteen .50 caliber machine guns and a 9,600-pound bomb load.
•Length 74 feet, 4 inches
•Wingspan: 103 feet, 10 inches
•Weight: 36,135 pounds (empty); 65,500 pounds (loaded)
•Cruise speed: 170 mph
•Maximum speed: 300 mph
To volunteer or get more information about the B-17 Project, call 937-652-4710, visit b17project.com or stop by Grimes Field, 1636 N. Main St., Urbana.