Space History Photo: Hyper-X Wind Tunnel Tests
An unmanned hypersonic research aircraft, the Hyper X, being tested in the wind tunnels.
Credit: NASA | Fred Jones.

In this historical photo from the U.S. space agency, the Hyper X is mounted on a Pegasus booster rocket in the 20 Inch Mach 6 Wind Tunnel on Nov. 10, 1996. The Hyper X is an unmanned hypersonic research aircraft launched atop an air launched Pegasus rocket and capable of reaching speeds of Mach 10.

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