A wind turbine.... It's not based on any real world model.
You might want to add white and grey textures to it!
It also contains an animated version and three example scenes.
Created and rendered in Cheetah 3D.

Please note, that the backgrounds from the last two preview images are NOT included!

File Formats:
3ds (3D Studio)
obj (generic format supported by most 3D programs)
fbx (Autodesk)
I'm sure that at least one of these file formats will work on other 3D applications too!

The animated wind turbine is in .jas (Cheetah3D) format, but it could easily be animated in other file formats as well!

Here is a video I made using this model:
/watch?v=ENjTTFZmzos&feature=plcp