The U.S. Air Force flew a reconnaissance jet from the mid-'60s through 1990 that set a few long-standing speed and altitude records early in its service life.
Lockheed Martin and NASA's X-59 is a new supersonic aircraft designed to reduce the sonic pollution that comes with ...
National Security Journal on MSN
Mach 6 ‘Miracle’ SR-72 Darkstar Has a Message for Russia or China
The SR-71 retired in 1999, but its rumored successor—the SR-72 “Darkstar”—keeps resurfacing. -Lockheed’s Skunk Works has ...
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