;F-104F: The F-104F designation was given to a dual-control trainer based on the F-104D, but using the upgraded engine of the F-104G. It had no radar, and was not combat-capable. The F-104F was produced as an interim trainer for the German Air Force. All 30 F-104F aircraft were retired by 1972.Donald 2003, pp. 154, 155.Paloque 2012, p. 20.
