~ On February 28, 1946 the first flight of the F-84 jet occurred.
• The F-84 Thunderjet entered service in 1947. The jet was plagued by so many structural and engine problems that a 1948 U.S. Air Force Review declared it unable to execute any aspect of its intended mission and considered canceling the program. The aircraft was not considered fully operational until the 1949 F-84D model and the design matured only with the definitive F-84G introduced in 1951.
In 1954, the straight-wing Thunderjet was joined by the swept-wing F-84F Thunderstreak fighter and RF-84F Thunderflash photo reconnaissance aircraft.