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David Leonard wrote:
I call them the "Oh Cowl" and the "Smiley Cowl..."
Go with the smile, but put a raised ledge on the cowl side just behind the spinner to accelerate the air and thin the boundary layer. Reduces the ingestion of turbulent air. Check the CAFE Foundation's drag reduction report. They have a picture of what it looks like on a production aircraft. I have a link to it at home, but not here.
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,|"|"|, Ernest Christley |
----===<{{(oQo)}}>===---- Dyke Delta Builder |
o| d |o http://ernest.isa-geek.org |
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