The results vary from plane to plane, but when I make a plane larger, say, by 500%, so it's around a 35' span (just graphically, physics- wise, it's still "stock"), the plane jumps around on the ground like it's, for lack of a better term, on hydros. It'll jump and bounce and then break and fly off into the distance. I have a 3.4Ghz P4 processor and 3GB of RAM. I forget what video card I have, but it does the same thing on a friends laptop with a completely different hardware setup.

Another issue is on the turbine jets, if I give them upwards of 80 lbs. of thrust, they go VERY fast for about half a second, and then the model just shuts off- the turbine quits, and I have no flight controls. It's not out of range, because I have that feature turned off, and it's only 1000' or so away from me when this happens. If I'm very careful with the throttle, it'll fly fine, but once I advance it past a certain point, the model will rapidly accellerate, and then everything on the plane- flight controls and engine- go dead, and the model just slowly floats to the ground as if in a flat spin, acting like the aero surfaces aren't affected by wind at all.

These are two minor annoyances in what is otherwise a fantastic flight sim. The last RC simulator I had was the OLD Dave Brown simulator from the early '90's that ran in DOS on my 286 Kaypro.