Picture this: beautiful clear skies. Me, enroute to Cardiff, flying at FL080 in Green 1 over Kent. Suddenly, a quintessential British voice on the frequency, announcing that he needed to put the gear down early because of some problem. He was given a lower level. I knew he was going to overtake me. Hell, EVERYTHING in that airway was overtaking my little Arrow. The weather being what it was I got a good sight of them pretty close up. I was having a great time. I thought nothing could top that.
And then Concorde passed underneath my little Arrow.... aaaahhhhhh.....
Must have been awesome. I remember returning from BKK/BAH, having decended from supercruise and flying subsonic over the Adriatic. The ideal subsonic cruise on Concorde being 0.95 Mach @ FL 280 meant that we were UNDERTAKING stacks of traffic above us at a great rate of knots. As it was getting quite dark we had this amazing spectacle of red and green lights going backwards above us. It looked absolutely amazing.