There's a new X-plane in town. Bell Textron's tilt-rotor aircraft being built for DARPA's Speed and Runway Independent Technologies (SPRINT) program, which aims to combine the features of a helicopter ...
The next phase of Bell’s X-planes is on the horizon. The aviation company has just completed the Critical Design Review for the U.S.’s Defense Advanced Research Projects Agency (DARPA), underneath its ...
At the end of October 2025, American space agency NASA finally flew, for the first time, its brand-new X-59 quiet supersonic research aircraft. It was a rather short, unspectacular flight, but it ...
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Watch NASA’s X-plane reach 300,000 feet - "Space starts here"
The NASA X-15 rocket plane reached speeds of Mach 6.7 and altitudes of 300,000 feet, flying to the edge of space and back.
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The F-47 NGAD fighter is already being built: Inside the "X-plane" tests that fooled America's rivals
Summary and Key Points: Boeing has shocked the defense world by moving the F-47 sixth-generation fighter into production just months after its 2025 contract award. -This unprecedented turnaround, ...
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