Dear Groundloop, Heathrow Director and Flightmech,
I think you will find that abrupt and condescending posts, however accurate in their bluntness, can be considered rude, particularly as I asked a perfectly valid question, which was patently not answered. However, the other posters on the thread have come up with a really interesting discussion which I was interested to read. Oh, and as far as making assumptions yourselves, how do you know that English is not my native language?
I just wanted a simple explanation to something I had seen, and not a row about people being rude or not.
Best wishes,
Breakscrew