Here is an animated fan for Unity 5 , Unreal 4 and the Blenders Game Engine.
Animated Fan Unitypackage : https://www.youtube.com/watch?v=o-8T--tYWLM Animated
Fan Unreal 4 Zip: https://www.youtube.com/watch?v=RATPrcEJeA0
Blendfile Layers:
Layer 1- Grouped objects
Layer 10- The fan components
Layer 20- Bake-settup for baking some seamless textures for the grid. Thought this could be interesting so i don't delete this layer.
Demo Video: https://www.youtube.com/watch?v=5-ADSn4AmHw
![Fan Animation](https://3dartdh.files.wordpress.com/2018/12/Animated-Fan-Game-Ready0012.jpg)
![Fan Animation](https://3dartdh.files.wordpress.com/2018/12/Animated-Fan-Game-Ready1172.jpg)
![Fan Animation](https://3dartdh.files.wordpress.com/2018/12/Animated-Fan-Game-Ready1372.jpg)
![Fan Animation](https://3dartdh.files.wordpress.com/2018/12/Animated-Fan-Game-Ready2172.jpg)