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Old 10th Jul 2013, 06:14
  #1336 (permalink)  
ve7pnl
 
Join Date: Feb 2010
Location: Johnstone Strait, BC
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The Sounds and Feel of 777 at 105 knots

I'd like to ask some triple 7 drivers about the cockpit airflow acoustic sound difference between 140 and 105 knots. But the only triple 7 cockpit crew who have the experience to comment on the sounds heard at near sea level at 105 knots will likely be interviewed soon.

I would think that the noise difference would be obvious. However the very high AOA near "touchdown" may have resulted in the same sounds at 105 as at 140 knots. My impression was that the AF cockpit sounds might have added to the confusion by giving an impression of adequate speed when in fact the acoustic signature was due to mushing through the air instead of going where the nose was pointing.

I am wondering if the NTSB will tease some acoustic clues out of the voice recorder by comparison with other landing at normal approach speeds.
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