The Convair XB-46 was a single example of an experimental medium jet bomber which was developed in the mid-1940s but which never saw production or active duty. It competed with similar designs, the North American XB-45 and Martin XB-48, all of which saw little use after the successful development of the Boeing XB-47.
Convair XB-46
XB-46 aileron and spoiler detail
North American B-45 Tornado
The North American B-45 Tornado was 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.
North American B-45 Tornado
A preserved USAF B-45C Tornado at the National Museum of the U.S. Air Force, Dayton, Ohio
A USAF B-45C Tornado in flight
Flightline photo of B-45A-5-NA Tornadoes of the 47th Light Bomb Wing, Langley Air Force Base, Va., before transatlantic flight to Sculthorpe, England, in July 1952.