PPRuNe Forums - View Single Post - Principles of Flight
View Single Post
Old 15th Sep 2009, 15:34
  #1 (permalink)  
nigelisom
 
Join Date: Aug 2004
Location: Whitstable, Kent, U.K.
Posts: 80
Likes: 0
Received 0 Likes on 0 Posts
Principles of Flight

Hi to you all, I am hoping someone out there can put me out of my misery on this question which came up on yesterday's CPL PoF exam. I have spent considerable time trying to fathom it out and even spoken to a PoF ground training instructor and other than the general thought that it is to do with the lift equation Lift = Cl1/2rho(Vsquared)S and the answer must be a reduction I have got nowhere.

The wording may not be exact but the gist of the question is:

An aircraft is traveling at 2xVs and encounters a gust which causes a load factor of 2. If that aircraft had only been traveling at 1.3xVs when it encountered that gust, what would the load factor have been?

answers given were:
(a) 2
(b) 2. (something I don't remember the figure precisely say 2.3)
(c) 2. (something more as above say 2.6)
(d) 1.69

I gave the answer 1.69 on the basis of the logic above but can someone please help with a clear explanation of how to solve it.

Thanks

Nigel
nigelisom is offline