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1. 03:51 PM - Re: Airfoil Drag Video (Speedy11@aol.com)
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Subject: | Re: Airfoil Drag Video |
I am far from an aero expert, but I found the video interesting. I did
not grasp the inference that a round shape has more drag than a rectangular
one. Rather I understood that a streamlined shape has less drag than a
round one. I guess it was made for laymen like me.
Stan Sutterfield
Not repeatable therefore not real useful for comparison. The guy should
rotate the airfoils to minimum drag each time, otherwise, he doesn't know
if
they are in comparable positions. It's also a shame he didn't replace the
airfoil with an equal-flow-area rectangular shape. As a result he produces
confusing and misleading results, inferring that a round shape has more
drag
than a rectangular shape!
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