NACA airfoils are not used anymore except on some aircraft. So which type of airfoil does the 737 use? Which company designs it and builds it?
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1$\begingroup$ I think Boeing still designs the airfoil. $\endgroup$– SMS von der TannMar 27, 2016 at 23:14
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$\begingroup$ Boeing designs and builds them. Why would a large aircraft company not design and build something so fundamental to its planes? $\endgroup$– David RicherbyAug 14, 2019 at 9:55
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2 Answers
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Boeing designs its own airfoils for its aricraft. According to this site, the following airfoils are used in 737:
Boeing 737-100: Wing root- BAC 449/450/451; Wing tip- BAC 442
Boeing 737-200: Wing root- BAC 449/450/451; Wing tip- BAC 442
Boeing 737-300: Wing root- BAC 449/450/451; Wing tip- BAC 442 mod
Boeing 737-400: Wing root- BAC 449/450/451; Wing tip- BAC 442 mod
Boeing 737-500: Wing root- BAC 449/450/451; Wing tip- BAC 442 mod
The 737 wings are manufactured at the Boeing plant in Renton, Washington.
answered Mar 27, 2016 at 23:31
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$\begingroup$ How about the tails? Horizontal and vertical. $\endgroup$ Apr 2, 2016 at 5:15
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$\begingroup$ Tail sections usually use symmetrical profiles such as the NACA0009 and (slightly thicker) NACA0012. Although the exact airfoil is not specified, this answer confirms those thickness ratios for the Boeing 737-100 as well. $\endgroup$– BramAug 14, 2019 at 8:19
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From this site, contains links to the profiles which can be used for Xfoil.
