The XB-70 Valkyrie was America's Mach 3 strategic bomber, made obsolete by ICBMs before it flew its mission - its sole survivor stands today at the NMUSAF in Dayton, Ohio.
The North American XB-70 Valkyrie - America's only Mach 3 nuclear bomber - never flew its intended mission, but its sole surviving airframe at Wright-Patterson remains one of aviation's most arresting artifacts.
The XB-70 Valkyrie was America's Mach 3 nuclear bomber - a Cold War engineering triumph made strategically obsolete before its first prototype ever flew.