Orca, not a problem. No need to apologise.
I understand that some questions may seem obvious to those who are serving or have served, but for those not in the loop, it can be pretty damned complicated. I'm trying to learn as much about aircraft as I possibly can from the professionals who operate the machines and the experts who maintain them, trying to mentally prepare myself for the dreaded selection process at OASC, assuming I meet the health requirements at that time.
Thank you to everyone for your very helpful input, as always.
T.