FSX Acceleration – Boeing B-17G Flying Fortress. The B-17 received the name “Flying Fortress” from a Seattle reporter who commented on its defensive firepower. The B17 underwent a number of improvements over its 10-year production span. Models ranged from the YB-17 to the B-17-G model. Throughout the war, the B-17 was refined and improved as battle experience showed the Boeing designers where improvements could be made. The final B-17 production model, the B-17G, was produced in larger quantities (8680) than any previous model and is considered the definitive “Flying Fort.” Original model by Gary Herbert, textures by John Terrell. Upgraded to FSX Acceleration (in FSX normal you lose glass textures) by A.F. Scrub.