Sean H - I think many of us would like to help, but we've no knowledge of the Irish system. That said, they will be looking for much the same attributes as any other air force, so read through the advice given to Royal Navy and RAF wannabes on PPrune, as 99% will apply. You need to be looking at your leadership skills, communication skills, problem solving skills (including mental maths) and your knowledge of world affairs and defence matters. Most armed services rate sporting ability/effort highly, and you will be expected to be fit.