McDonnell Douglas F-4E Phantom II, American users

The McDonnell Douglas F-4E featured many improvements from the previous version, the F-4D. Among them there were upgraded leading edge slats on the wings that improved greatly the high angle of attack and maneouvrability in expense of a lower top speed.
It was powered by a pair of General Electrics J79-GE-17A axial compressor turbojets that could deliver 11905lbf (52.9Kn) of thrust on dry and 17845lbf (79.4Kn) in afterburner. Those engines, however, produced a noticeable black smoke which made the aircraft really easy to spot being this way a sever disadvantage when hiding from the enemy. It wasn't solved until the F-4S was produced which introduced smokeless combustor.
It served as the main United States Air Force fighter from its introduction in 1967 until late 1970s when the F-16 was introduced as the replacement. Many of the F-4Es were upgraded to the F-4G and continued serving in the SEAD role during the 1980s.

Sources:
1. https://en.wikipedia.org/wiki/McDonnell_Douglas_F-4_Phantom_II#United_States_Air_Force
2. Salamander Books - The Complete Book of Fighters