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(Solved): Consider several NACA 4-series and NACA 5-series airfoils of your choice operating at similar Reyn ...
Consider several NACA 4-series and NACA 5-series airfoils of your choice operating at similar Reynolds numbers. Estimate the maximum L/D ratio for each airfoil. Also estimate the \( \left(L^{1 / 2} / D\right)_{\max } \) and \( \left(L^{3 / 2} / D\right)_{\max } \) ratio for each airfoil.
Expert Answer
The early NACA airfoil series, the 4-digit, 5-digit, and modified 4-/5-digit, were generated using analytical equations that describe the camber (curv