To fly another aircraft, the aircraft must be in the
misson you choose. This is critical because if you
don't you will end up in the middle of nowhere without
any controls at all. The codes are entered in the
callsign area of the pilot fillout. All the codes are
case sensitive, which means that they have to be exact.
You must type it in the following form:
fly:(put the code here!)-##
The ## means the aircraft's misson id.
Aircraft codes and mission data can be found at Graphic
Simulation Corporation's homepage in their FAQ database.