B-17 Flying Fortress units of the United States Army Air Forces 2d Bombardment Group, Langley Field, Virginia on 11 January 1936; the first production B-17B was delivered on 29 March 1939 also to the 2nd Bombardment Group. A total of 12,677 production Fortresses was built before production came to an end. In August 1944, the Boeing B-17 equipped no less than 33 overseas combat groups. The last Boeing-built B-17G was delivered to the USAAF on 13 April 1945. Following the end of World War II, the Flying Fortress was rapidly withdrawn from USAAF service, being replaced by the B-29 Superfortress. Literally thousands of Fortresses used in combat in Europe by Eighth
RAF Bomber Command aircrew of World War II recognized emergency landing place. Vigilance was always maintained as Luftwaffe night fighters flying as "night intruders" sometimes followed the bombers home and attacked as aircraft came into land. If the conditions were foggy, or particularly poor on their return it was not unusual for aircraft to be diverted to more distant bases which were clear. Arriving back at base crews were promptly ferried to de-briefing where mugs of tea were distributed while each crew was interviewed and a detailed operational report, compiled before a generous bacon and egg breakfast could be claimed. From the outbreak of war RAF Bomber Command