I have been contracted the build a wind tunnel for my old high school and I don't know where to begin. I was thinking about using an electric motor from a model airplane but I am new to them so I don't know how to go about picking one out. In a perfect world I would need the air to go around 200mph through the tunnel, but to be honest I think I can get away with 50mph. In addition I was thinking about using a 12 inch prop due to the fact that the inside of the wind tunnel is 12", is this the right thinking or should I use a smaller prop and allow the air to move out to fill the volume? Any help would be much appreciated.
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