by Michael Hopkins
Drawing - Pen And Ink
The North American XB-70 Valkyrie was a prototype version of the planned B-70 nuclear strategic bomber.for the United States Air Force. The aircraft was designed in the late 1950's by North American Aviation. The six-engine, XB-70 Valkyrie, had the capability of cruising for thousands of miles at Mach while flying at 70,000 feet.
The XB-70 had a maximum speed of over 2000 mph (Mach 3.1) and a combat range of over 3000 mikes. Due to the changing role of the manned bomber in the USAF, the XB-70 program was cancelled in 1961.
July 23rd, 2021
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