A batwing-style fighter concept promising blistering Mach 4 performance has muscled into the US Navy’s next-generation ...

Stavatti's Mach 4 SM-39 Razor fighter jet challenges Boeing and Northrop Grumman in Navy's F/A-XX competition with radical ...

The race to field reusable hypersonic aircraft got a whole lot hotter last month, with GE Aerospace announcing a breakthrough in high-speed jet engine design that could potentially allow conventional ...

Colorado aerospace company Boom Supersonic flew its XB-1 demonstrator for the first time on Friday. Nicknamed the "baby boom," the jet tests technologies for Boom's future Mach 1.7 Overture airliner.

A Chinese start-up is aiming to develop a supersonic drone capable of reaching speeds four times the speed of sound. Lingkong Tianxing Technology, the company behind the project, unveiled the unmanned ...

Summary and Key Points: The Douglas X-3 “Stiletto,” designed to research sustained supersonic speeds and achieve a maximum speed of 2,000 mph, ultimately fell short due to being severely underpowered.