"Am I right in assuming that only the Flightplan data goes to ATC, with no information as to whether we've downloaded the IVAO aircraft?" Yes "If I pick the code for the APM20, for the flightplan, and that code is APM2, does the controller receive just the APM2 code and does he have any data on what it implies in terms of performance?" Controllers should know their codes - they are just part of the huge volume of useless data one accrues in practise. Everyone picks up the common stuff quickly - a B738, A343, AT72 and C421 are absorbed quickly, but we also get to know most of the others from experience so if a L188, GL5T, ULAC or PAY3 call us we mostly know what they are. In IVAO the codes can be found in IVAO Eye. Even if we don't know the code the height and speed of an aircraft are enough to give a rough idea of its performance band. If we are curious we can always ask the aircraft. bones -----Original Message----- From: jhb-bounce@xxxxxxxxxxxxx [mailto:jhb-bounce@xxxxxxxxxxxxx] On Behalf Of Gerry Winskill Sent: 29 July 2007 08:35 To: jhb@xxxxxxxxxxxxx Subject: [jhb] IVAO Flightplan Aircraft A few questions for Bones. Since he has previous IVAO form and has probably read more, he may know the answers, where the rest of us may be guessing. I mentioned, yesterday, that only a small proportion of Flightplan form aircraft codes are actually supported by downloadable IVAO aircraft, which prompts me to look further into the situation. Am I right in assuming that only the Flightplan data goes to ATC, with no information as to whether we've downloaded the IVAO aircraft? If I pick the code for the APM20, for the flightplan, and that code is APM2, does the controller receive just the APM2 code and does he have any data on what it implies in terms of performance? Other questions follow, depending on the answers. Gerry Winskill