Ok i was there too. It was amazing. I was talking to this guy in the visitors centre. He told me a lot of info i.e. Clearance frequency and a lot of helpful stuff. After the arrival og G-BOAE at around 17:55 on 9L
everybody went round to Hatton Cross. We followed as it was almost safe assured that it was departing there, however we had seen an Emirates B777, an Air Canada B747-400 and a Virgin Atlantic A340-600 depart from 09L.
We went round there and parked in the car park of a pub about half a mile away from Hatton Cross. We walked down there to find many people. Then after standing there for 5mins I looked up and saw a cross of contrails forming a perfect X. I thought maybe this meant i was at the wrong place
. Then that man appeared again, and told us it had just got clearance for a 9L
departure. We rushed back to the car and went across, radio in hand. I knew this was the last time i was going to see it in operation and i did not want to screw this one up. Then the guy on Tower Control said "For those spotters looking for Concorde, it will be departing on the northern runway today." At this point we had beaten the rush and were back at the visitors centre.
I took up my position by the road and started to listen to my ATC. I think it must have changed to something else because i heard no take off clearance for Alpha Charlie and i suddenly heard a roar and a set of lights. There she was. The afterburners looked amazing in the darkness and when they were turned off, i could only think to myself that i'd never see that again. It flew round to the south and round to the west. Farewell!
The reason for the random departures on 9L
was due to some problem, which meant that the departures could not use the full length of 9R