You need to use the pprune search facility.
After that, if you still have unanswered questions feel free to ask them here.
Alternate answer.
To join the Fleet Air Arm you need to be dashing, handsome, gifted, charming (and probably debonair) and hung like a grand national winner (not necessary for the girls.)
To join the RAF you need a fondness for shiny suits and to be hung like a hamsters tongue.
Hope that helps.