Check this animation out!
I made the 3D terrain and planes in Maya using the mesh tools.
I imported the Meshes into Virtools and programmed some simple interactions to give the viewer different views of the terrain and airplanes. Press the buttons 1 through 5 for different camera angles. You may need to download the 3D plug in to view the animation. But its so worth it!
Link:
http://blubee.com/itp/oscarPlane/