Tennessee-based startup Whisper Aero last week performed the first crewed flights with its ultra-quiet electric ducted fans, demonstrating that an Aeriane Swift 3 glider powered by its eQ250 propulsors is no louder than the same aircraft in unpowered flight. “The eQ250s themselves are far quieter than the airframe,” Whisper Aero co-founder and chief operating officer Ian Villa told The Air Current in an interview, explaining the single-seat Swif…
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