https://peertube.dngr.us/videos/watch/690f8c34-0710-403a-80e1-ef864b7719b2 This 20-second video from the 1970's shows an YF-12C takeoff from Edwards Air Force Base. 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. More information on the YF-12 aircraft is available here: https://www.nasa.gov/centers/armstrong/news/FactSheets/FS-047-DFRC.html Mirrored from YouTube: https://youtu.be/5SwyJTJagq8 Original channel: NASA Armstrong Flight Research Center Wed, 15 Jul 2026 10:01:14 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/690f8c34-0710-403a-80e1-ef864b7719b2 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.