HiI made a runway for Tern Island in the Pacific. The problem is this. When you start from the island buy selecting a flight, the runway is at the same height as the fictional tarmac I designed. Whne you fly out and return to the island, 100 miles + , the runway sinks into the ground and it looks as if the aircraft in in quick sand on the default FS2002 scenery for the island. Help please. How do I get the runway and tarmac to stay ontop of the default land?http://www.czeg.org/terntarmack.jpg

I think this is your problem:Read this post from me.http://forums.avsim.com/dcboard.php?az=sho...ing_type=searchI think you have a switching effect between LWM Flatten and Area16N Flatten on the fly when the LOD Level change.Change all, the Runway, Area16N Flatten and original LWM Flatten to the same height. Then you have no problems.Check the heights (integer/fractional) with TDFCALC3B from Richard Ludowise.Info: Runway fractional =1/256 LWM fractional=1/128