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I'm quite a newbie of these systems and I am designing the wing box of a drone. I know where I want my shear centre. However, I have been trying to determine the shear centre of my idealized airfoil. My airfoil is the NACA6412 and it's highly unsymmetrical.

I know this subject have been touched in this forum before and I have read T.H.G Megson a lot, but I think I am missing something. I have been stuck in this problem for 3 months now and if someone can provide some light on it, it would be great. My goal is to implement this determination in a script or in excel for future situations.

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  • $\begingroup$ The shear center depends on the structural construction, e.g. where the spar, shear box, etc. are located. $\endgroup$
    – JZYL
    8 hours ago
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The best way is to assume the airfoil symmetric (since the location of the shear center in the chord is more important) for a preliminary phase; It will help a lot. Also, don't forget that idealization is a very rough estimate of the stress analysis of a wing structure or fuselage. It helps, however, with initial pre-sizing.

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