Hi, I know this is OT, but as there are real pilots here, i have a ? about the ATC and how to obey.. Say you are on a heading of 220 deg and on FL190 ATC then demand you to turn to 180 and descend to FL120 but the ATC is really busy - so you can not respond immediately, but do you start the turn and descend asap or do you wait until you have OKed the demands? /Stig stig.joergensen@clearsky.dk