So i've being trying to get my head around something I saw 2 weeks ago in southern england(east sussex to be exact).
What my brother saw and then pointed out to me was very high in the sky a contrail that had lots of donut shapes about 4 fingers apart stretching as far as the eye can see (imagine your arm stretched out with your fingers together, roughly i'll hasten to add, cant remember exactly though there were an aweful lot, wish I had taken a picture now!). They dissipated pretty quickly within a few minutes to just resemble a usual looking contrail, only it appeared to be higher than what you usually see.
So , given that it was multiple donut shapes (a bit like the donut on a rope analogy) would something that was traveling faster than the speed of sound create one sonic boom, or multiple booms over and over again and would they be visible to the eye if you couldn't hear them?
I was reading on the Aurora wikipedia page and noticed people have heard strange sonic booms in the late 90's over California coupled with sightings of the donut on a rope contrail, now run with me a little, is there a feasible chance that what ever this was is flying high enough that no sound would be audible, lets say because whatever plane it might be, has become more advanced , hence the ability to fly so much higher out of audible range?
Am I going mad? Was it a missile perhaps? Or even just a very fast fighter plan creating multiple sonic booms all the way across the sky?
