Mid 70s, Concorde westbound from Bahrain crossing overhead Lebanon around FL600, U2 northbound along coast about FL580. At the time we weren't allowed to call the U2, only monitor for their calls (that changed). Concorde passed Within a couple of miles*. With very small stall margin the U2 departed and severely over stressed recovering. Airframe had to be flown home in a C5 for repair and a replacement flown in.
Comment from the pilot in discussion. "Didn't mind the b*****d was bigger than me, didn't mind he was faster than me - but what pissed me off was the b*****d was above me!"... - but he thought it was a real cool white bird in the black sky.
* Memory going, 40 years ago. Can't now remember if it was the shock wave ahead or wake behind.
Last edited by ORAC; 6th Mar 2015 at 13:52.