Is it a helicopter? Is it a plane? NASA has developed a 10-engine electric vehicle that can take off like a helicopter but fly a plane. The prototype, dubbed ‘Greased Lightning,’ or ‘GL-10’ is ...
With 10 propellers and a 10-foot wingspan, NASA's unmanned aerial vehicle can take off like a helicopter, then fly like a plane. Michael Franco Freelancer Michael Franco writes about the serious and ...
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