jetset pete the Navy want Officers that can Fly. Now a keen interest in aviation is of course beneficial but it is essential that you provide them with the evidence that you have sat down and thought about joining up for a considerably long time.
A Naval pilot or RAF pilot is potentially a pilot that can be sent to war at anytime. I had to think long and hard before sending in that OEQ, over that one. In the RN you will have other Officer duties as well as flying. Now I know that I am in the beginning of the process and time will tell if I get selected, but I got the distinct impression from Advisory interview that they want those in for the long haul, Prior to the interview I decided that I wanted a long term career not just a flying job or a job, which appeared to be a key buzz sentence. The Services provide great opportunities, but they are not for everyone. Take it as a highly professionally management position (as an Officer) with the added bonus of flying!.
Not sure if this helps, I don't think it will hinder any applications, although there is considerably more to the process than just wanting to fly.
Sagey