EVTOL Noise: What’s Possible? What’s Hype?

Leading eVTOL companies claim that their aircraft can be 10 to 1000 times quieter than conventional helicopters. Is this possible in theory? And what progress has been made so far?

To answer these questions, this video reviews the science of sound waves and aircraft noise. It discusses various noise reduction strategies by eVTOL companies, including patents by Joby Aviation.