Enno Eyb

Hi, How can I find out the coordinates of the neutral point/ aerodynamic center of wing and tail? The information of "elev. lever arm" - which I assumed to be defined as the distance between the two centers - is only correct if the offset of the wing and tail is 0 at the root and is not taking into account the geometry of wing and tail (e.g. sweep). Thanks for clarification and help!

sorry, I meant "or" not "of" in the header...

Hi, How can I find out the coordinates of the neutral point/ aerodynamic center of wing and tail? The information of "elev. lever arm seems" - which I assumed to be defined as the distance between the two centers - is only correct if the offset of the wing and tail is 0 at the root and is not taking into account the geometry of wing and tail (e.g. sweep). Thanks for clarification and help!

Hi, sorry to bother you but I could not find any information and my "try and error" did also not succeed. Is there a way to change the "alfa" for "Mixed inverse" (QDES) design within XFLR? In Xfoil the last value of Oper ist beeinf used. Whatever I do I end up with alfa = 0. Only for "Full invers" (MDES) i'm able to change the cl or alfa. On the other hand the "mark" option is not available for the "Full inverse" design. So I'm stuck somewhere inbetween. Any help would be highly apprechiated.

Feature Request