09-12-2017, 03:17 PM
The routes are changed on a daily basis, so it's virtually impossible to give a true daily rate for one particular area, but when it's over your area, the noise can be fairly constant.
The Hilo -> volcano flights last 50 minutes. Let's say take offs are every two hours (leaving time for refueling and change of passengers). Just a few weeks ago I was waiting at the cell phone lot at the airport and there were six tour helicopters there, all of which took off on tours while I was there (I don't know what the total number is).
So, assuming they all follow the same route, which is generally true, that's 12 flights every two hours. For 12 hours, that's 72 overflights. My experience that instead of two hours, it's more like 1.5 hours, which means it could be nearer 100 flights a day.
The Hilo -> volcano flights last 50 minutes. Let's say take offs are every two hours (leaving time for refueling and change of passengers). Just a few weeks ago I was waiting at the cell phone lot at the airport and there were six tour helicopters there, all of which took off on tours while I was there (I don't know what the total number is).
So, assuming they all follow the same route, which is generally true, that's 12 flights every two hours. For 12 hours, that's 72 overflights. My experience that instead of two hours, it's more like 1.5 hours, which means it could be nearer 100 flights a day.