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Old Nov 16, 2011, 09:04 PM
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Build straight - Fly twisty
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Australia, QLD, Little Mountain
Joined Feb 2010
4,814 Posts
Hmmm...
The following quote from the paper would not seem to be what KF fans want to hear:
The drag coefficient values for all cases with steps were higher than for the airfoil without steps. As step depth increased, drag increased with it. No drag reduction was achieved using any combination of steps.
I think I also detected some woolly thinking regarding L/D, but I'll leave that to others for now.
Also to be noted is that the test sections bear little resemblance to those 'we' use.
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