LANGLEY, Va. — In a cavernous wind tunnel at NASA's Langley Research Center hangs the putty-colored right half of a giant model aircraft, mounted on a big black board like a trophy fish. Engineers ...
Overair is emphasizing low noise and robust performance margins as it unveils the production configuration for its Butterfly quad-tiltrotor electric vertical-takeoff-and-landing (eVTOL) air taxi. Spun ...
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