No qualifications needed to be an AAC pilot as an NCO, just pass the selection - is a gamble though, if unsuccessful then you would have spent 6 years or so as a Private soldier/Junior NCO to ultimately not get what you wanted. If you do go for it, join a Regiment/Corps that gives a trade that you can fall back on and one that gets you promotion fairly quickly. RE, REME, RMP and RA are a good start, avoid Infantry/RAC, promotion is slow and they can be a little tribal when it comes to releasing their sharp soldiers.