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08-31-2008 | 06:48 AM

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HO-229

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From: California, MD

NACA numbering scheme

Hello all,
Looking to understand the NACA numbering scheme used to define the Messerschmitt Bf 109K airfoil
NACA 2R1 14.2 NACA 2R1 11.35

How can these NACA numbers be plotted
The last 3 digits are % thick but the 2R1 is a mystery?

Thanks in advance,
Dave

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