Despite its technical triumphs and support from aviators, the XB-70’s operational future unraveled almost as quickly as it ...

contributing to the development of future supersonic aircraft like the Concorde SST. -One prototype now resides at the National Museum of the U.S. Air Force in Dayton, Ohio. XB-70 Valkyrie ...

In 1961, President John F. Kennedy scratched the XB-70 as an actual bomber program - but the aircraft continued to fly for research purposes until February 1969.