Propeller Explained Video

Hi All. Been a long time since I do not post here 
I just wanted to share this video which I thought was really really good.
http://www.youtube.com/watch?v=0bP2MH3LqvI
I think I finally understood why we have constant RPM systems
[]s

I just wanted to share this video which I thought was really really good.
http://www.youtube.com/watch?v=0bP2MH3LqvI
I think I finally understood why we have constant RPM systems

[]s