https://peertube.dngr.us/videos/watch/0638f18d-5795-4c3e-8ead-1d35e9fb5ce4 This 1-minute, 41-second movie shows NASA's X-43A demonstrating supersonic-combustion ramjet (scramjet) propulsion during two of its record-setting flights in 2004. Both flights, the first on Mar. 27 and the second on Nov. 16, 2004, demonstrated sustained thrust from the X-43A's air-breathing scramjet engine, the first at nearly 5,000 mph, the second at nearly 7,000 mph, or almost 10 times the speed of sound. To learn more about the X-43A / Hyper-X visit: https://www.nasa.gov/centers/armstrong/news/FactSheets/FS-040-DFRC.html Mirrored from YouTube: https://youtu.be/gzadlK1-3Is Original channel: NASA Armstrong Flight Research Center Wed, 15 Jul 2026 12:45:40 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/0638f18d-5795-4c3e-8ead-1d35e9fb5ce4 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.