I would be quite surprised if Harry checks out on the Apache. Current Apache pilots have already done at least one tour, (3 years), on either the Lynx or Gazelle and are selected for the Apache at the rate of about 24 per year, all very valuable training slots for career pilots. It has already been announced that Harry won't be transferring to the AAC but remaining with his regiment so the usual career progression for a young officer would be a three year detachment to the AAC, the Gurkhas, foreign armies etc.etc. as a subaltern or captain before continuing his career in his own regiment. My guess is that, provided he passes out, he will get a three year tour on a Lynx, initially as a co-pilot and subsequently as an aircraft commander.