North American B-45 Tornado

The North American B-45 Tornado is an early American jet bomber designed and manufactured by aircraft company North American Aviation. It has the distinction of being the first operational jet bomber to enter service with the United States Air Force (USAF), as well as the first multiengine jet bomber to be refueled in midair. It was the second American jet bomber, after the Douglas XB-43 Jetmaster.
The B-45 originated from a wartime initiative launched by the U.S. War Department, which sought a company to develop a jet-propelled bomber to equal those being fielded by Nazi Germany, such as the Arado Ar 234. Following a competitive review of the submissions, the War Department issued a contract to North American to develop its NA-130 proposal; on 8 September 1944, work commenced on the assembly of three prototypes. Progress on the program was stalled by post-war cutbacks in defense expenditure but regained importance due to growing tensions between America and the Soviet Union. On 2 January 1947, North American received a production contract for the bomber, designated B-45A, from the USAF. On 24 February 1947, the prototype performed its maiden flight.
Soon after its entry to service...