There will be no need to study anything as the RAF will teach you all you need to know. As an AMM (aircraft maintenance mechanic) you will in essence be filling in the duties of an old style flight line mechanic and working along side technicians. I have been assured that you can only sign and partake in employment up to the old style mechanic (before they got their fitters course) which is simple and meanial tasks (which requires 100% supervision?).