Boeing XB-38 Flying Fortress The XB-38 was destroyed and the project was canceled, in part because the V-1710 engines were needed for other projects such as the Lockheed P-38 Lightning, Bell P-39 Airacobra, Curtiss P-40 Warhawk, North American P-51A Mustang, and Bell P-63 Kingcobra fighters. Boeing XB-38 Flying Fortress The XB-38 Flying Fortress was a single example conversion of a production B-17E Flying Fortress, testing whether the Allison V-1710 V type engine could be substituted for the standard Wright R-1820 radial engine during early World War II. The XB-38 was the result of a modification project undertaken by Boeing and Vega (a subsidiary of
Bomber Aircrew in World War II Bomber Aircrew in World War II "Bomber Aircrew of World War II: True Stories of Frontline Air Combat" () is a book by military historian and author Bruce Barrymore Halpenny. It is about the aircrew of RAF Bomber Command in World War II. This group had over 300,000 operations flying over enemy territory during the war, losing 50,000 airmen and 8,000 British aircraft. The book has first hand accounts by veteran RAF aircrew and their support staff, giving an insight into life in RAF Bomber Command as well as the creation and development of the bomber airfield for a new