PPRuNe Forums - View Single Post - Air Asia Indonesia Lost Contact from Surabaya to Singapore
Old 11th Feb 2015, 01:25
  #3176 (permalink)  
Vilters
 
Join Date: Sep 2011
Location: Belgium
Age: 64
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
@skyhighfallguy

Your comments are correct. And an unstallable aircraft should not stall. But.

But see?
You are already thinking about the recovery part, before you got unstalled.

FIRST get the nose down. FIRST break the stall.

In a fully developped deep stall, you are dropping like a stone in this thin air, there is little time.

FULL nose down on the stick, wait, then nose down on the trim, wait, but not too long, then chop power, then drop gear, there is little time left by now, and you still have to start the recovery part....and you need altitude for that too.

If nothing helps? Asymetrical power and prepare for (perhaps) a flip/cartwheel, when one wing stalls unstalls before the other wing, perhaps even passing inverted.

The wing drop/flip part is clearly visible in the other video about the ATR. The assymetrical stall roll rate is "fast", and you have NO airspeed over your control surfaces yet to counter it. You have to wait for the speed to come back before you can start regaining control of the roll rate and the nose.

Last edited by Vilters; 11th Feb 2015 at 01:36.
Vilters is offline