Keep ground in view mode will keep the horizon in the view even if the aircraft is going off the screen. Try using a different zoom mode and using the black switch on the controller to get a glimpse of the ground.
Realflight is only made for Air vehicles. You are better off getting a driving sim.
If you would rather use Realflight I will try making one, but I am not too good at modeling.;)
P.S. is it okay if I post it for version 6.5? I don't have G5 or G4.
There is a sound emitter positioned where the radio is.
You could edit the airport and delete the emitter, but you will need to save it as a different airport.
The edges of the texture that a projected object use MUST be transparent. In 3ds Max the material must also be named ~ALPHA or ~CANOPY
KE really needs to work on this.
My brother enabled water at that map for his AP and raised the water a bit. It creates a strip of land in the center.
Edit: The flatlands and photofield maps are 100% flat.