North American Aviation XB-70A-2-NA Valkyrie 62-0707 first flight, AF Plant 42, 17 July 1965 Published on August 3, 2012 in 17 July 1965Full resolution (1195 × 816) North American Aviation XB-70A-2-NA 62-0207 takes off for the first time at AF Plant 42, 17 July 1965. (U.S. Air Force)