Electronic warfare
The 7575th Operations Group operated at Rhein-Main from 1 July 1977 to 31 March 1991. Initially, three unique units were assigned to the group: the 7405th Operations Squadron, the [[7580th Operations Squadron]], and the 7th Special Operations Squadron. The 7405th had recently moved from Wiesbaden Air Base and converted to flying heavily modified C-130E Hercules airlifters. The 7580th was staffed with [[Electronic warfare officer|electronic warfare officers]] and specialized aircraft maintenance personnel who flew in the back of or maintained the 7405th's aircraft. The mission of the 7405th and 7580th was to conduct covert reconnaissance flights through the [[West Berlin Air Corridor]], also known as the Berlin corridors and control zone.