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Old May 22, 2012, 05:29 PM
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United States, CA, Roseville
Joined Feb 2012
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Question
Are flaps and ailerons included in wing loading calcs?

Hi guys,
This may be a silly question but are the ailerons and flaps included when talking about wing loading? And lastly, what about the nacelles? Do I need to subtract the nacelles out since they are rounded and don't appear to help flight characteristics?

Thanks!
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Old May 22, 2012, 05:34 PM
To Slip is Divine
Joined Sep 2011
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Yes, control surfaces are calculated and nacelles all depend on the nacelle. Some nacelles are lifting surfaces and are calculated.
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Old May 22, 2012, 05:46 PM
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United States, CA, Roseville
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How about these nacelles? Should I subtract for those? (B-25)
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Old May 22, 2012, 06:40 PM
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Moab, Utah, USA
Joined Apr 2003
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Generally wing area used for calculating wing loading is simply the wingspan times the mean aerodynamic chord (MAC). The areas of the wing covered by the fuselage and any nacelles are ignored (not subtracted out), as are any fuselage or nacelle areas that extend beyond the wing boundaries. Those ignored areas will have some effect, but it will be minimal.

Larry
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Old May 22, 2012, 06:51 PM
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United States, CA, Roseville
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Cool thanks!
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