PPRuNe Forums - View Single Post - Val d'Anniviers Airplane Crash
View Single Post
Old 17th Feb 2011, 13:33
  #99 (permalink)  
vanHorck
 
Join Date: Jan 2008
Location: London
Age: 68
Posts: 1,269
Likes: 0
Received 0 Likes on 0 Posts
opinions please:

Is it possible in a sudden downdraft when reacting by pulling hard on the control column with a view to clearing the ridge to "overstall" the plane in the sense of pulling so hard to climb that the nose drop below the horizontal occurs at a much lower speed than stall speed due to the momentum of the movement?

I am thinking of a more than 45 degree cross over a ridge (assume 60 degrees for the argument), a serious downdraft at a moment when it s too late to veer away from the ridge, pulling very hard on the control column whilst trying to also slightly turn away from the ridge.

The reason for my question is that it is not only peculiar that the plane apparently crashed without forward motion but also apparently alongside the ridge as opposed to the 45 degree angle we would expect of a failed ridge crossing
vanHorck is offline