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Brief description of the issue:
I am an experienced custom developer of AI flightplans since FS2002. Whilst using offline AI traffic.bgl files I identified an issue whereby if I change the simulator date and time this has no effect on the AI traffic spawned. I would expect the offline AI spawned to be based upon the simulator UTC time rather than fixed to windows system time which then would enable flights at a user selected time with the offline traffic corresponding to the time of day. I have found a further problem spawning AI aircraft where there is a mismatch between days/dates and those in the Traffic AI Flightplan.bgl
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I have found a workaround - (1) If I change the windows system clock to match the offline flightplan file the aircraft appears as per the traffic AI flightplan which works for plans for all “24HR” coded traffic AI flightplans. (2) Another issue is traffic AI flightplans coded to operate over a “WEEK” - the day of the week coded doesn’t correspond with the AI traffic for that day. A workaround is to change the system date minus 3 days i.e. if the system date is set to a Friday the day/date needs to be changed to a Tuesday to spawn the flights programmed for Fridays -full list below to help recreate.
AI Day Change System day to a
1/ Monday Thursday
2/ Tuesday Friday
3/ Wednesday Saturday
4/ Thursday Sunday
5/ Friday Monday
6/ Saturday Tuesday
0/ Sunday Wednesday
It is only after these workarounds that I can see the correct aircraft starting the correct flight as per the traffic AI flightplan. In search of a solution I have changed the traffic AI flightplan days in the hope of AI traffic to spawn on the correct days to check if this is a flightplan day i.e. 0/ coding issue, however this again didn’t match the AI day programmed as per the realigned days to system date. Changing all programmed 0/ flightplans to a 3/ didn’t work. Example Traffic AI Flightplan used to identify issue;
In the default Traffic.bgl file I noted that all flightplans are 24HR or less and therefore may not have been an obvious issue previously. Any help would be appreciated to correct the root cause of either offline AI traffic file coding or confirm if this is a simulator issue. I note many users adopt live traffic injection solutions although this doesn’t enable users like myself to pick a flight to fly offline when unable to fly “Live”.
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