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Old Mar 13, 2012, 01:47 PM
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The reason it is so small is that I need the proper Reynolds number to test the airfoils. I should have said 7"x7"x36". The fan I have is a 20in. diameter and has a max windspeed of 6.2mph. I need the wind in the tunnel to be about 50mph to simulate the windspeed of RC aircraft when using equation of continuity and Reynolds Number equation. The problem with the wind is that is has updrafts and downdrafts and not very consistent. Can you give me a link on what you did for the lift calculations?
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