I find it fascinating. Jet engine combustion isn’t what you’re mostly hearing near an airport, when it’s really annoying. It’s mostly the aerodynamic pressures

I find it fascinating. Jet engine combustion isn’t what you’re mostly hearing near an airport, when it’s really annoying. It’s mostly the aerodynamic pressures coming from the flaps, the landing gear, and the angle into the airflow of the craft. Most planes are pretty quiet in cruise, in relative terms. (Except for high-performance military-power engines that just don’t care. They have to defy gravity with much less stable glide lift. They also get to.)