We need more clarification on information here,
You say you think it was a plane but you presumably saw nothing and you state the sound was unlike any plane you have heard, so why do you still think
it was a plane?
What did it sound like? Was it a rumble, a roar, a buzz, a booming sound, metallic, what?
Could it have been blasting for some construction project or a sonic boom well off in the distance, or perhaps some other industrial process like
heavy industry? I used to live near a steel works when I was young and sometimes we would hear rumbling blasting sounds. Turns out it was hot slag
from coking ovens being dumped from rail cars that hit puddles of water lying on the ground causing it to instantly boil and explode. The explanation
could be as simple as that.
LEE.
edit on 17-7-2011 by thebozeian because: (no reason given)