These are an ongoing series of extraordinary aircraft existing at the extreme cutting edge of technology. The “X-planes” are radical, often bizarre, machines that push the boundaries of what is ...

DARPA's X-65, that replaces conventional aircraft flight controls with puffs of air, is coming together at Boeing subsidiary Aurora’s Bridgeport, West Virginia facility. The fuselage is taking shape ...

X-59’s engine started for testing for the first time. NASA’s Quesst (“Quiet SuperSonic Technology”) mission recently achieved a key milestone as it began testing the engine that will power the X-59, ...

Some aspects of the X-56A drone’s design, such as the landing gear systems and cameras, will be modified to demonstrate that a digital model can be reliably certified for flight before the physical ...

The X-13 was developed in the 1950s, at a time when aerospace research was perhaps at its most fervent. The Ryan X-13 Vertijet was an experimental aircraft built to test vertical takeoffs and landings ...

What You Need to Know: NASA’s supersonic X-59 aircraft has taken another critical step toward flight, as its engine was powered up successfully on October 30. Developed by Lockheed Martin’s Skunk ...