I just bought the Challenger but fail to get it loaded properly. When X-Plane is done loading, the Plane seems to sink into the ground and the camera starts rotating like crazy. After some seconds X-Plane shows the 'Your plane crashed...' dialog. Resetting the plane doesn't help. It is independent from the airport I choose.
I already deactivated all plugins, custom scenery, meshes and tiles in xOrganizer - no success.