Hi Folks,after designing and installing an addon scenery with an according afcad layout, I happen to have a strange phenomena.On FS startup, all traffic is properly placed at gates/parking etc. All behaves well (within fs and flightplan limits) until I do a trip myself. On arriving at this specific airport, the aircraft hang in midair, about 110 ft over their parking positions. Departing traffic "beams down" to the apron before taxiing out normally. Arriving traffic behaves normal, too.I had to use a flatten area to have the area useable for this (new, no MS-default) airport. May this affect the AI positions when the airport area is out of visual range?Any help is welcome...Thanks,Torsten

Maybe you need to change the elevation in the airports.txt file.Matt

Dear Matt,thanks for Your reply, I tried that already. Altitude in the airports.txt is the same as the scenery altitude defined in airport as is the flatten altitude...TM

How about the reference point and also the tower locations in AFCAD. Those both have elevations also.Matt

Thanks I'll check that!

Dear Matt,a VERY BIG THANK YOU again... My AFCAD ref point was more than 100ft over the scenery and I guess that caused the unusual looks. I changed it to scenery alt, started a short flight and voil

Glad it worked, I was just guessing, so I learned something new as well.Matt