Interesting story on teletext tonight.
It says a Eurofighter Typhoon went supersonic and broke the sound barrier while on a test flight over North Wales, it also said people were phoning the emergency services saying there was an earthquake when they heard the boom !!!!!!!
So it seems that we have not finished breaking the sound barrier over the UK yet, even if it was not offical, or maybe it was !!!.
Well done that pilot.
Peter.