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                           RV8-List Digest Archive
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                     Total Messages Posted Tue 01/11/11: 1
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Today's Message Index:
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     1. 03:51 PM - Re: Airfoil Drag Video  (Speedy11@aol.com)
 
 
 
________________________________  Message 1  _____________________________________


Time: 03:51:25 PM PST US
From: Speedy11@aol.com
Subject: RV8-List: 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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