Max Format:
The flaps, rudders and the landing gear are animated. Meshsmooth is applied so you can set the object resolution as you like. Just use the Named Selection Set meshsmooth to select the SubD objects.

Obj Format:
In 3 different resolutions ranging from 154898 to 876677 Polygons. The movable parts are saved separately in an initial state and in an animated state. The lowest poly-version is the SubD. hull. So you can use it easily as SubD in Maya/XSI or any Programms supporting SubD.

3ds Format:
In 3 different resolutions ranging from 293093 to 1738610 Polygons. The movable parts are saved separately in an initial state and in an animated state.