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Old January 16th, 2008, 18:21   #4
tgrayson
Old Skool
 
Join Date: Sep 2006
Location: Memphis, TN
Posts: 2,259
Default Re: Ground Effect and Wingspan

Quote:
Originally Posted by B767Driver View Post
Of course, the CsubL across various airfoils really doesn't change all that much. .20 on the low side to .70 on the high.
For landing? A Cessna 172 has a landing CL of 2.0 with full flaps, 1.6 clean. Your airplane probably hits at least 3. I haven't seen anything in the 4's; maybe with some active boundary layer control.
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