This is a German owned and operated F-4F, piloted by a German pilot. Its wearing USAF markings because its attached to a training squadron:
Never?
Because its not in any way the same.
1) GAF TO 1F-4F-1 Flight Manual, 15 October 1975, revised 15 July 1976,
2) GAF TO 1F-4F-34-1 Weapons Delivery Manual, 15 September 1976.