Hi, I can never seem to work the A/P so that it carries out basic commands such as altitude hold, Heading hold and ILS approach. I press the relevent buttons but it just won't work. Do I need to have the FMC programmed with a flightplan for the autopilot to even basically work?ThanksIan Clarke.

I presume you are engaging CMD A, FD, and AT first? It should work fine and you do not have to have a flight-plan entered into the FMC for the AP to function.

I tried that but it still didn't work?!?Thanks for the replyIan Clarke

Hey Ian,If you haven't already, you should work through Timothy Metzinger's tutorial which is available through the PMDG website (goto Downloads|Documentation|737TNG Advanced Operations Tutorial v2).The very first flight in the tutorial deals with using the autopilot without the FMC including an ILS approach.If you work through the whole tutorial (it's quite big, over 100 pages, but well worth it) you should be ready to fly the aircraft using all its functions.CheersDavid