There was a discussion on another forum and the engine was discussed. The name Olympus, and I thought it was a Bristol engine that was fitted to the Concord airliner.
After a quick google, it was in fact a Bristol Siddley engine and presumably Rolls Royce took them over? But the same power plant basically on both aircraft, with afterburners in both case, rare for a commercial aeroplane.
I saw the Vulcan flying at RAF Valley when I was in school and I must say very impressive it was.