*** Posted by Anonymous*** [Is the F16 the fastest Air Force warplane? ] No, only the last answer is correct, the f-16s top speed depends on the air temperature and on the aircrafts altitude. (When the temperature varies, so does the speed of sound) According to the F-16 A/Bs manufacturer ,General Dynamics, he can go up to 2173 km/h --> Mach 2.05. The heavier F-16 C/D however, can 'only' go up to 2020 km/h --> Mach 1.91 according to 'his' manufacturer, Lockheed Martin, because of the increase of electronics and the heavier engine.