PPRuNe Forums - View Single Post - Are Flex / De Rated take offs safe?
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Old 21st May 2008, 10:26
  #97 (permalink)  
mutt
 
Join Date: Sep 1999
Location: ME
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--Now Mutt..you picked a 11500 ft field..you and I know that this plane is probably overgross, and the pilot is trying to squeeze that assumed 10000 ft accel/stop into a more realistic 9000 ft field with a 1000 ft stopway..
I picked 11500 ft coz its almost the length of the shortest runway at my local airport, the actual length is 11800 ft. So nothing devious in its selection. If the runway was shorter, the weights would be lower, and most certainly the takeoff weight would be lower. This would also probably mean that flex value would be much lower or zero.

The numbers are from the B777 Electronic Flight Manual, they are certified by the FAA and hence do not lie! So please get away from statements like these...So yeah..he went right over the fence...and they do it in front of me every day.... as you have no justification to back it up.....

Mutt
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