Genghis a fair point, a lot of people who can land the real thing make a complete lash of it on a sim.
Theoretically with something like FS 2004 you can do a cross-country with realistic scenery and operating procedures.
Now that the old grid I laughingly called a PC has bitten the dust I might get one that can do all of the above. I'll do a test with carefully measured quantities and let you know what happens