PPRuNe Forums - View Single Post - Ethiopian airliner down in Africa
View Single Post
Old 18th Mar 2019, 13:59
  #1906 (permalink)  
Chesty Morgan
Gender Faculty Specialist
 
Join Date: Mar 2002
Location: Stop being so stupid, it's Sean's turn
Posts: 1,888
Received 6 Likes on 5 Posts
Originally Posted by Ian W
But more speed when your stab trim is too nose down is your enemy. Reduction in speed would reduce the force to counter the nose down trim so 'piloting' would dictate reducing speed.
Yes but reducing thrust on the 737 creates a large nose down moment (pitch/power couple) so as Vessbott stated they would have just hit the ground sooner.

My experience of this is unusual attitude recovery during manual reversing air tests. Reducing thrust, if you're already using everything you have to keep the nose up, WILL result in a further nose down moment and no reduction in speed. They'd have been better off sticking the speed brakes up.

And in fact Boeing DO publish this in the QRH.
Chesty Morgan is offline