it is indeed a problem. however, Sling (who we are working with on our first model) is also developing a "Whisper" version of their airplane to make it dramatically quieter (https://www.slingpilotacademy.com/airport-noise-reduction/#1...). We hope to adopt the tech into the Airhart Sling as well

And unlike other aircraft, the small fixed-wing ones spew lead into the atmosphere as if this were still the 1970s or something.