A rocket powered sled runs along the ground on the rails in Muroc
Muroc California Date:1948, January 22 Duration:1 min 3 sec Sound:Yes
The sled runs along the ground on the rails during tests carried out by Northrop engineers in Muroc. The rocket powered sled breaks the speed-of-sound barrier. The unmanned sled hits a speed of 1019 miles per hour. Smoke trails. Mountains in the background.
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