Heres a weird situation for you all to consider. I build/fly giant scale R/C aircraft and many events have dozens of 100cc plus gas engines running sun-up to sun-down. Some are nitro, some are jets and some are REALLY LOUD!!! We love the hobby, and the noise is part of it just like jet ski's, ski doo's etc I suppose. At the end of the day when flying is done and all is shut down the worst thing anybody can do is fire up a loud contractor generator and let it bang away for hours. That will really tick off folks like no other. Its kinda funny, but sorta shows how there are acceptable noise levels even at specialty events and many tolerate noise better than others. I love the noise of our planes and props...but love my Honda 2000 because its quiet enough to not cheese off my flying buddy neighbors.
Daryll