Born from the need to replace the vulnerable U-2 spy plane, the SR-71 Blackbird was an engineering marvel of the Cold War. We ...

At Mach 3, friction with the atmosphere raised the SR-71’s skin temperatures to a searing 500 degrees Fahrenheit—hot enough to make the fuselage glow red.

Hypersonic flight (speeds faster than Mach 5) is the perceived future of human aviation. In order to achieve that vision, engineers need to develop hybrid engines capable of handling subsonic, ...

Lockheed Martin's Skunk Works has confirmed that it is developing the SR-72 spy plane. The successor to the SR-71 Blackbird, which was capable of Mach 3.5, the SR-72 will be a hypersonic unmanned ...