Our contributor and two-time Mr. Top Gun Bret Becker showing off his model of the XB-70 Valkyrie. The XB-70 was the prototype of the B-70 supersonic strategic bomber. Only two were built; one crashed during a test flight in Barstow, CA. The B-70 was designed for Mach-3 flight and the prototypes were used for testing related to a U.S. version of the SST. The remaining XB-70 can be seen in person at the Museum of the U.S. Air Force in Dayton, Ohio.
