PPRuNe Forums - View Single Post - 737 airspeed unreliable QRH
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Old 20th Mar 2015, 21:54
  #33 (permalink)  
galdian
 
Join Date: Dec 2006
Location: australia
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Some are misunderstanding that the NNC change is ESSENTIALLY, 99.9999% about hot and high situations where you have f**k all airspeed to play with before a stall - whether high speed or low speed.

At FL280/300 or so you can literally set whatever power/pitch you want and you will NEVER STALL.
The AirFrance incident did NOT occur at FL280 - it occurred when hot and high.

CK: apologies but did not see the margin to low speed stall, end of SIM session and the others wanted to call it quits, all I wanted to see was what would happen when (IMHO) setting a high pitch/low power when hot and high should get extremely ugly.
Having tried the scoreline is: Boeing 1, Galdian 0.

Regards your concerns about low speed stall - why can't it be high speed stall if you're in turbulence with strong vertical windshear??
Personally if I was in or approaching ANY stall I'd be calling it quits - drag off the power, setting around 0 degrees pitch, making a "mayday" and getting down to FL280 and luxuriate in all that margin between high/slow stalls whilst trying to sort out what's going on.

Live to fight (flight) another day!
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