<p>JackTraveler it is never over. You will just find yourself having to memorize different things. As a SWO or submariner it will run the entire range from shipboard piping systems to engineering casuslaty response from navigational aides to man overboard drills from weapons systems to (here you go again) platforms, I will let USNA69 talk about the aviators, but I am sure they memorize alot more.</p>