Thanks for the replies everyone...that has been cleared up nicely. I am LGW based and did visit Swanwick a coupe of years ago (invited by one of the respondents to this thread). May well come over again as I got a lot out of that visit. PS if ever you are on a flight please do let the front end know...the least you will get is a tour of the front office....probably of more interest is a seat upgrade. Having flow into some seriously dodgy ATC environments long haul drivers really do appreciate the great work you guys do.