The Superbird Wing Was Not "Idiotically-Ineffective" or "Dumb"

greymouser7 said

I read some where that the race teams switched the horizontal stabilizer to upside down for it to be effective.

Is that where this is coming from?

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According to the article the wing airfoil was already upside down. BTW, the rear stabilizer on helicopters is also an "upside down" airfoil.

From the article: "The cross-sectional shape is an inverted Clark Y airfoil which is a highly efficient negative force generator within the 12 deg adjustment range provided.”