https://peertube.dngr.us/videos/watch/f52cdd1b-bbed-49d9-8a69-6d72dd691433 This 27-second video taken in the 1970's shows the YF-12C during mid-air refueling. The YF-12 "Blackbird" was an experimental fighter-interceptor version of the Lockheed A-12 aircraft. In Air Force flight tests on May 1, 1965, the YF-12 set a speed record of 2,070.101 miles per hour and an altitude record of 80,258 feet. First publicly displayed at Edwards Air Force Base, CA, in 1964, the YF-12 was never adopted by the military as an operational aircraft. It was, however, a precursor to the SR-71 Blackbird reconnaissance plane. Two YF-12 aircraft were flown in a joint Air Force-NASA research program at the NASA Flight Research Center (now the NASA Armstrong Flight Research Center) between 1969 and 1979, although the second plane, piloted primarily by the Air Force, was lost to an in-flight fire in 1971. The two YF-12 aircraft bore the serial numbers 60-6935 and 60-6936. For more information on the YF-12C Blackbird visit: https://www.nasa.gov/centers/armstrong/news/FactSheets/FS-047-DFRC.html Mirrored from YouTube: https://youtu.be/Ol7Tcza6wi0 Original channel: NASA Armstrong Flight Research Center Wed, 15 Jul 2026 08:53:30 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/ec5edb1e-3795-4978-be4f-c67e98fbc992.png https://peertube.dngr.us/videos/watch/f52cdd1b-bbed-49d9-8a69-6d72dd691433 All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.