-NASA’s X-43A was a black, wedge-shaped test vehicle that did something once thought impossible: it proved an air-breathing scramjet could fly at hypersonic speeds, reaching Mach 7 and then Mach 9.6 ...
Key Points and Summary - NASA's X-43A, an unmanned scramjet testbed, set the world record for an air-breathing aircraft by hitting Mach 9.6 in 2004. -Launched from a B-52 and boosted by a Pegasus ...