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Old 12-05-2016, 03:21 PM   #60 (permalink)
aerohead
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tabletop testing

I began with my grandfather's old 3-speed fan and a cigarette.Later I made a cardboard tunnel for 24th-scale models, which had a thread leading over a pulley, down below the floor of the tunnel to a pan which you could balance the drag force by adding B-Bs as weight to the pan until the model stopped being blown back in the test section.
Being a 24th-scale model,they never generated a proper drag coefficient,so none of the drag measurements had any real meaning,but you could do what Alex Tremulis called 'pick-and shovel' aerodynamics with it.
I say,go ahead and play with it,but understand that, as others have mentioned already (and they are correct) whatever you come up with would NOT be recognized as real science.
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