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By MigBuster
Good article:
It flew at nearly Mach 7, seven times the speed of sound and twice the speed of a rifle bullet. The speed record it set 47 years ago today still stands today.
It flew so high its pilots earned Air Force astronaut wings: 280,500 feet or 53.1 miles above the earth.
http://alert5.net/2014/10/02/47-years-ago-today-the-fastest-manned-aircraft-flight-ever/
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