I am sorry, ricky-wannabe that the hay fever apparently ruled you out. From previous experience I might feel that there also may have been other reasons, just read through your forum entry as though you were on the selection board and compare it with the replies you have received, punctuation and spelling OK?, thought gone into layout?. Oh and a little research would tell you there have not been aircrew gunners for many a year.
I may have been a little harsh but the competition is fierce so these things matter. Concentrate on the detail and you will best promote your obvious enthusiasm.