Not sure if its a re-post but anyway, here you go

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Seen this one before; it is by far the best illustration out thus far.

 

Really amazing. I find myself zoning as i watch the rotor spin.

 

good post!

 

I have seen others but i was trying to explain to my 14yo son how a rotary works as opposed to a piston engine and this did the trick. He watched a video on each type of engine ad he was amazed how simple the rotary is.