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 ...
Bell will get a chance to build an X-plane demonstrator for high-speed vertical-takeoff-and-landing technology based on a stop/fold tiltrotor. DARPA selected Bell over a rival bid from Boeing-owned ...
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