Hi Stampe
yes it was a really cool noise . If you are in Detling and I am about 8 miles south east of woodley that puts it on a direct west to east track . It sounded too loud for real high level over flight so perhaps it was heavy out of Brize or Lyneham -I thought I saw an A net pic of a big Antonov visiting one of those place recently so perhaps that was what it was - I am sure someone will have all the details before long
PB