Quote:
Originally Posted by theycallmeebryan
He says the plane has a Cd of 0.016 and a frontal area of 0.88 ft^2, giving a CdA of only 0.01408!!!
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The 0.88 is equivalent flat plate area, which has a Cd of 1.0 or 1.1 depending on who you ask. So the CdA is 0.88 or 0.968. The convention with aircraft is to compute the Cd based on planform area, so 0.88/.016 = 55 sq ft of planform area (silhouette viewed from the top).