Spectators Balcony (Spotters Corner)If you're not a professional pilot but want to discuss issues about the job, this is the best place to loiter. You won't be moved on by 'security' and there'll be plenty of experts to answer any questions.
May have been, but I'm about five miles NW of Gatwick and didn't hear it overhead as I do with normal Gatwick departures. It was a few miles NE from me.