I have some mildly related personal experience as well. The glider club I belong to started getting noise complaints from people living near the airport. On a busy day, our tow plane might make 25 takeoffs. We often took the same path every time, repeatedly annoying the same people. We started varying our routes and also replaced the propellor with a quieter one and everybody was happy.
I have some mildly related personal experience as well. The glider club I belong to started getting noise complaints from people living near the airport. On a busy day, our tow plane might make 25 takeoffs. We often took the same path every time, repeatedly annoying the same people. We started varying our routes and also replaced the propellor with a quieter one and everybody was happy.