Our contributing editor and 2-time Mr. Top Gun Bret Becker exhibiting off his mannequin of the XB-70 Valkyrie. The XB-70 was the prototype of the B-70 supersonic strategic bomber. Only two have been constructed, one crashed throughout a take a look at flight in Barstow, CA. The B-70 was designed for Mach-3 flight the prototypes have been used for testing associated to a US model of the SST. The remaining XB-70 might be seen in individual on the Museum of the US Air Force in Dayton OH.