I helped someone going for the flying scholarship with HCAP last year. I think a good starter for 10 is finding out about HCAP in detail. You need to try to contact past winners (see HCAP website). they'll be glad to help (and you can mention you spoke to them in the interview). Then you need your motivations down pat and how you plan to move forward in your aviation career. They are looking for someone who is going to give back more than they put in. Good luck, don't be late