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Old 14th Sep 2007, 21:08
  #2256 (permalink)  
PBL
 
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Originally Posted by Dani
we know for sure that engine 2 was still at forward trust. Even with full brakes you will not manage to get any usefull deceleration.
Here we go again.

For the information of others, the most optimistic estimate of the stopping distance at the recorded deceleration is that of bsieker on 10.08@10:21, who notes an acceleration of 1.5 m/s/s after brake application and calculates a stopping distance of 1728m.

The most pessimistic estimate is that of TripleBravo on 17.08@21:47, who estimates -1.08 m/s/s acceleration over the entire episode for a stopping distance of 2.4 km.

There are lots of airports with runways with LDAs of well over 2.4 km. The airplane would have stopped on the runway on all of those.

Some people such as bsieker and TripleBravo have done some considerable work calculating such figures and redacting them for the rest of us. It is only fair to them to remember what they have done and use their work. And it is sensible to do so, otherwise we do not progress with understanding this accident and its consequences.

PBL

Last edited by PBL; 14th Sep 2007 at 21:40.
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