Dick - you may be able to confirm/deny a tale I heard about the early T5?
It seems that 2 prototypes were delivered to A&AEE, one of which had a much more powerful engine than the later production standard T5. Described to me as a 'Dominie engine' and it certainly pre-dated the later Strikemaster. Allegedly it went like stink - but did it really exist and, if so, what happened to it?