@JG54
'Twas the Avon which stuttered when the Hunter fired its guns ... There was scurrilous rumour that RR used a version of the Sapphire's compressor in later Avons. I think Dr Hooker confirmed that in his book "Not Much of an Engineer" and from experience I remember that later Canberras didn't suffer from the low-speed hang-up problem when spooling up for take-off in a cross-wind. I think it was because the 2-position inlet guide vanes changed their setting at a certain rpm on the early Marks and you "lined up" roughly into wind till those rpm were reached, after which you swung the aircraft onto the runway heading and headed for the Wild Blue Yonder. OK(ish) for singletons, but not very practical fo formation take-offs ...