PPRuNe Forums - View Single Post - CofG and induced drag
View Single Post
Old 17th Jan 2009, 15:08
  #21 (permalink)  
Mark1234
 
Join Date: May 2006
Location: Londonish
Posts: 779
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by airfoilmod
Do I miss your point
Somewhat - you seem to be the only person posting from the point of an extremely aft COG

I can't argue with what you say - all perfectly correct as far as I understand, but also perfectly irrelevant to a legally loaded civil aircraft of 'conventional' disposition.. where there's going to be a nose down couple, opposed by the tail feathers.

As to the original question, why a fwd COG increases induced drag, I think it's been answered many times over. So long as you start with the reasonable assumption that the COG is ahead of the neutral point.
Mark1234 is offline