I understand that the main purpose of the TSR2 was to deliver nuclear weapons to the heart of the Soviet Union. It was designed to do this supersonic at low level. Unfortunately it could not carry sufficient fuel to do this. Neither could the F111 which was initially ordered instead. This was cancelled too, and for the same reason.
It was then realised that supersonic intrusion into the SU at low level was impossible, if you wanted the aircraft and crew back. The Buccaneer was the best airframe in the world to do the same job at subsonic speeds. This was why it was transferred from the RN to the RAF.
Anyway, that's what I overheard a group of Boscombe Down test pilots saying in 1968.
So, if it wouldn't achieve it's primary role, what else was it so good at?
A marvellous bit of aeronautical engineering it probably was. But what use was it?