My first post so looking for some advice from the more experienced on the board

Im wanting to join the RAF as pilot but have got to be realistic and think about the competition. So my main question is if you go to the OASC, pass all the aptitude tests and do alright in the interview but they decide you're not suitbale for the role of pilot, is there any chance they will offer you a different job in the RAF or are you totally disregarded and told your unsuitable and to apply again at a later date?
Reason i ask is if im not accepted as pilot i would be willing to accept Weapons Systems Officer/operator. But i dont want to say that before i go incase they construe it as a lack of ambition!
Thanks for any help and advice
