Here's a pic of Stuart Green's beautiful Mitsubishi G4M "Type-1 Lighter" in FSX. I've tried swapping out the prop texture with several that I know fixed this problem with other FS9 ports, but none have any effect here. And this one looks different that others I've seen. Usually it's just the prop blades that disappear behind clouds. In this case it's the entire prop disk that occludes clouds and trees. This is probably a feature of the model and can't be fixed, I'm guessing...