I remember at Farnborough in the 70's, my father and I were in one of the hangars when it all went quiet? People started to make their way hurriedly to the doors to look outside to identify the low rumble ... we followed. The rumble deepened as a Vulcan bomber swept past doing a low run and then pulled up to what looked like verticle. As it did, the pilot pulled out all the stops and I think I learned that day a little of what it must be like to feel an earthquake!!!
The noise, the compression on the lungs and the tremour felt, was nothing short of AWESOME!
SS