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Input for Reference value

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Old   March 1, 2025, 13:16
Default Input for Reference value
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Ramida
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I have a problem with the input for the reference value. I know the area will be the planform area and the length will be the chord length for the wing, but I am not sure what the area should be if I do the analysis for the fuselage and the whole aircraft. It should be the frontal area (projected to yz plane) or planform area (projected to xz plane).

If I have to analyze the aircraft's lift-to-drag ratio, I should do the analysis for the whole model, am I correct? So, what should also be the area for the reference value?
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