For the life of me I cannot figure out why some of my addon a/c bounce while sitting idle at some airports.The bouncing last for a few seconds when I look at the plane from the an external perspective.Most of the airports that this happens too are also addons thta are GPU intensive.I feel my sytem specs are pretty good and I am using ATI 3.9 eventhough I have tried the latest drivers but saw no improvement or even less over the old and true 3.9.Any suggestions would be appreciated ....ThanksAndy

I have no clue why some a/c bounce at some airports and others don't, etc. I have this too, and I've read about it before. Contact points maybe? I don't know. I sypmpathize though. If there's a fix, I've missed it too. :)http://home.earthlink.net/~dawgfighter/sit...es/swvasig1.gif-Jeremy BurchSWVA4806 http://www.virtualswa.com/home.phpThe Ozark Dogfighter http://forums.avsim.net/images/wedge.gifHappy Flying!

It happens to me also. For me the plane that bounces is the IFDG MD-11. I've gotten so annoyed with it I hardly fly it anymore.

I wonder why more attention is not given to this issue in the community or are we the only 3 that have this issue ....ThanksAndy

>For the life of me I cannot figure out why some of my addon>a/c bounce while sitting idle at some airports.The bouncing>last for a few seconds when I look at the plane from the an>external perspective.Most of the airports that this happens>too are also addons thta are GPU intensive.Mine is pure speculation, but one of the hypotheses could be some sort of instability arising in the modeling of the ground/aircraft interaction, caused in turn by a momentary overload of CPU and extremely low FPS. A proof of this, could be the bouncing not appearing when all graphic sliders and/or screen resolution are lowered or set to min.

The model is set up too high so when you display it, it drops on the ground and bounces. You need to change the contact points or the aircraft reference point height.The change in FS versions somethims means this needs fixed for specific MSFS releases so go back to the maker and complain.Ian

Do a search for "Bouncing Aircraft" here in the forum. The last entry in the list contains a lot of info. I remember having the same problem with one A/C and these suggestions fixed it.