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Old 8th Jan 2011, 13:19
  #19 (permalink)  
CliveL
 
Join Date: Dec 2010
Location: Europe
Age: 84
Posts: 286
Originally Posted by henra
The point at which the pitching moment is measured would be the aerodynamic center
Not true I'm afraid. The wind tunnel guys can choose any reference point they like. For convenience they usually use 25% mean aerodynamic chord, but that is not the aerodynamic centre for a complete aircraft or a wing/fuselage combination and may not be the aerodynamic centre for an airfoil or wing if they are testing at moderately high Mach Numbers

Regards

CliveL

Last edited by CliveL; 8th Jan 2011 at 13:19. Reason: addition
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