It might be a good idea to check up on others in the neighbourhood and ask if they heard anything unusual, if it bothers you that much that is. The chances are other people around might have got a better look at it.
I once heard an F16 and a Eurofighter typhoon in flight, they were miles away but it sounded like they were right ontop of me. You definitely hear these jet beasts moving. I think they were practising manoeuvres or possibly responding to a control tower call.
Possibly the loudest I've heard was a chinook twin rotor helicopter, it was probably about 120 feet above me and boy they make a racket! Even at a distance there's just a gentle rumble in your stomach that graduates to a roar as it gets nearer. In the areas around Hampshire there seems to be a lot of helicopter training.
Michael W
Edited By Michael Walters on 19/12/2016 14:51:31