Low Rumbling Noise

ucsd_ucla_dad
Fri, 04 Feb 2011 14:55:45 +0000

I used to live on Air Force Bases. It’s not unusual for them to spin up a jet engine and then have it stop abruptly when they’re working on the planes and testing the engines. They’re working on these planes, swapping engines, testing engines, etc. all the time.

When I lived on a base in the desert a long time ago I got used to hearing sonic booms all the time since they frequently (multiple times per day) broke the sound barrier there. Now that gets your attention.