This 1-minute 41-second movie shows NASA's X-43A demonstrated 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/armstron
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