An instrument calibration specialist based in Brighton seems to be making the most of the clear skies in the UK today. It's flown a small aircraft up to Glasgow, which has been wheeling around the approach and departure zones around Glasgow Int'l for the last hour or so. It's also landed three times, two of them touch and go. They seem to have some work to do on their altimeter, because the last time it came down it was on the runway at about -250ft.