The Century Series project is a way of thinking about research, development, manufacturing, and airplanes in service. The shapes of these planes are also instantly recognizable.ย
Learn more about the final entries of the Century Series: the F-105, F-106, and the elusive F-107.
The Republic F-105 Thunderchief
This plane was an internal Republic Aviation project that set out to replace their outdated RF-84F Thunderflash.ย

The F-105B entered service in the summer of 1958. It was nicknamed the โThudโ after the character Chief Thunderthud from the โHowdy Doodyโ TV series.ย
It carried a 20mm M61 Gatling-type cannon. The plane operated extensively in Operation Rolling Thunder in the air campaign against North Vietnam.ย
Convair F-106 Delta Dart
Another plane in the Century Series is the Convair F-106 Delta Dart, the final development of the USAFโs interceptor program in the early 1950s.ย
The F-106 was designed without a gun or even a way to carry bombs. Its main armament was missiles that were carried in an internal weapons bay for clean supersonic flight.ย

It was also equipped with four AIM-4 Falcon air-to-air missiles and a single 1.5 kiloton MB-2 Gene unguided air-to-air rocket to be fired in Soviet bomber formations. Many pilots simply refer to it as โThe Six.โย
North American F-107ย
Finally, the last jet is the North American F-107. The plane was North American Aviationโs entry to an Air Force tactical fighter-bomber design competition in the 1950s.ย

The F-107 made its first flight on September 10, 1956, hitting Mach 1.3 and Mach 2 later in November.ย