Mach number

(AP Photo)

Experimental Air Force aircraft goes hypersonic

LOS ANGELES (AP) — An experimental unmanned aircraft developed for the U.S. Air Force went hypersonic during a recent test off the Southern California coast, flying at more than five times the speed of sound. […]

05/03/2013

Pilot Felix Baumgartner on a screen at mission control center in Roswell, New Mexico.

Skydiver fell faster than thought

CAPE CANAVERAL, Fla. (AP) — Supersonic skydiver Felix Baumgartner was faster than he or anyone else thought when he jumped from 24 miles up.

02/04/2013

Unmanned US military hypersonic craft failed

(AP) – An unmanned experimental aircraft failed during an attempt to fly at six times the speed of sound in the latest setback for hypersonic flight. The X-51A Waverider was designed to reach Mach 6, […]

08/15/2012

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