The First Official Mission of the 8th Air Force, Mission Number 1, using their own planes, Boeing B-17 Flying Fortresses, did not occur until August 17, 1942 when they attacked Rouen / Sotteville marshalling yard in France with 12 aircraft. All returned safely.
The 8th AF flew B-17Es until September 5, 1942. Due to combat losses, brand new B-17Fs of the 92nd BG were used as replacement aircraft for 97th BG losses. In return, the 92nd BG received the 97th's battle weary B-17Es.
Most B-17Fs in the Pacific were stationed at Pearl Harbor for "defense". The first B-17F, sn 41-24446, arrived in the South Pacific August 15, 1942 and was immediately sidelined when propeller governor failed and there were no spare parts available.
The first loss of a B-17F in the pacific, sn 41-24354, occurred on August 26, 1942 as a result of AAA while bombing shipping in Milne Bay, New Guinea from 1500 feet.
Early War Arena: 1939-early1942?
Mid War Arena: late1942-1943?
Late War Arena: All of the above + 1944-1945?
B-17s really don't make the cut for EW at all. Any B-17s. The U.S. barely makes the EW as it didn't enter the war until almost 1942.
wrongway