PPRuNe Forums - View Single Post - Using GPS ground speed to resolve Unreliable Airspeed
Old 4th Jun 2019, 12:22
  #106 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
Location: Commuting not home
Age: 46
Posts: 4,319
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Dear John.

You keep missing the point where AF447 crew failed to maintain the normal pitch of 1-2.5, deg and a hefty dose of thrust (makes no difference if 80 or 95 N1), failed to do nothing just keep the ESSENTIAL two parameters the same. Giving them an Excel graph, forcing to memorize it, would greatly help them - I think not. Quite on par with the act where you could not add up HW and TW correctly, and thus the precision GS method to reach IAS = Vref = 100 at touchdown would put your followers into a stall with IAS of 60 kts at 2500 ft.

If the traits you claim to have are true, surely you see that a method which has its proponent fail to calculate correctly, (let alone explain it over a few days), from the comfy space in front of a computer screen, is of absolutely no use to a crew in distress.

Leading Airman worth their salt understand that if a crew fails to execute a procedure the solutions are: (any combination of)
- focus the syllabus, enabling a better understanding of priorities
- raise the fail/pass standard, enforcing a better drill
- simplify the underlying procedure

Adding overlay mumbo-jumbo procedures only makes things worse for the next unfortunate lot. Severely worse as a matter of fact.
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