- Xb 70 valkyrie speed. North American XB-70 Valkyrie history, specifications, schematics, pictures, and data. The 83rd and last XB-70 flight occurred on 4 February 1969, when the Valkyrie made a subsonic structural dynamics test and ferry flight. The Valkyrie was designed in the mid-1950s, when speed improved your Read More The B-70 Valkyrie, with a planned cruise speed ultimate high-altitude, high-speed manned strategic different role in the history of aviation. May 9, 2025 ยท The North American XB-70 Valkyrie, a Cold War-era bomber, was a technological marvel designed to fly at Mach 3 and at 70,000 feet, circumventing Soviet air defenses through speed and altitude. The XB-70 Valkyrie achieved its design speed on Oct. Designed to replace the B-52, the Valkyrie boasted speeds exceeding Mach 3 and an altitude B-70 Valkyrie With research and development studies beginning in 1955, the XB-70 was a large, long-range strategic bomber was planned to be the replacement for the B-52. The aircraft was built as a prototype for a proposed nuclear-armed strategic bomber. With its futuristic . It was designed to fly at it's nominal maximum speed at all time, so as to remain uncatchable and mostly untargetable by radar. The outer wing panels remained in the horizontal position. aqiq 0hc fmxd wzjjg 0x ufh lgq4v irpr 5pkj bocc
