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 ...

Aircraft are fundamentally a weird thing, and only a commonplace sight to (some of) those born in the last hundred years. But overexposure to the Boeing and Airbus aircraft we see flying over every ...

DARPA has assigned the designation X-76 to the Speed and Runway Independent Technologies (SPRINT) project, a Bell proof-of-concept technology demonstrator for a high-speed tiltrotor. DARPA (Defense ...