Used to hear them alot out where I grew up in remote SW KS. McConnell AFB used to run training missions out there all the time and although they weren't supposed to do it, it happened all the time. More impressive was when the B1's used to run about 200 feet off the deck at about 700mph with the afterburners blazing. They are the loudest damn plane I have ever heard. They used to get in trouble even flying at altitude for scaring the livestock where I grew up.