Aircraft › B-17EB-17EB-17EB-17EModification ofB-17EProduced467ChangesOf 512 built from September 1941, 45 went to the RAF as the Fortress IIA.Crew10Engines4Service193119321933193419351936193719381939194019411942194319441945United States · Pacific14 Aug 1942 – 14 Aug 1942United States · Western Europe17 Aug 1942 – 17 Aug 1942