The Republic XF-91 Thunderceptor is a mixed-propulsion prototype interceptor aircraft, developed by Republic Aviation. The aircraft would use a jet engine for most flight, and a cluster of four small
XF-91 in 1951 at Edwards Air Force Base.
XF-91 Thunderceptor during testing
On the left is Republic XF-91 (serial number 46-680) after the nose radome installation and on the right is XF-91 (serial 46-681) after the V-tail modification.
The Republic F-84 Thunderjet is an American turbojet fighter-bomber aircraft. Originating as a 1944 United States Army Air Forces proposal for a "day fighter", the F-84 first flew in 1946. Although it
USAF F-84E Thunderjet
An F-84G at Chaumont-Semoutiers Air Base, France, in 1953
P-84Bs of the 48th Fighter Squadron, 14th Fighter Group, 1948
A Portuguese F-84 being loaded with ordnance in the 1960s at Luanda Air Base during the Portuguese Colonial War.