F100 o F101 o F102 o F104 o F105 o F106. This is the history of fighter aircraft that transitioned the United States Air Force into the supersonic era. By 1952, fighter designations that started with the Curtiss P-1 in 1923, reached the century mark with the North American F-100 - thus the term Century Series. This occurred at the very point where operational fighters could exceed the speed of sound. The useful lives of the six century series aircraft...