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Old 8th Jun 2012, 21:45
  #6 (permalink)  
flyburg
 
Join Date: Nov 2000
Location: Netherlands
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Check airman,

Dude, thumbs up to you!!!

That was precisely what happened, during the climb, the pitot tubes iced over! Giving an erroneous speed increase (Alt increases, speed increases!!). For some reason accompanied by an increase in HW due to that same fault in the FMS, leading us to believe that the airspeed increase was accurate.

We reduced power for an erroneous airspeed increase leading us into an actual stall. As we recovered the alt went down and so the airspeed indication as well but this was not unnatural as the TW increased as well (due to the faulty IRS computation). Even though the low speed stall was recovered we still had the buffet ( which seamlessly went from low speed buffet to high speed buffet) together with an extremely low airspeed indication.

Short story short, when we finally interpreted the FPV and the airplane symbol, we realized there was no way we were in a stall and recovered using pitch and power settings with an unreliable airspeed situation

In the mean time, I'm ashamed to admit we had gone Mach 1.1, went from 35.000 to 15.000 in under a minute!

The entire sim session was about unusual attitude recovery, nose high speed low, nose low speed high etc, this scenario came at the end. Flying close to TS we fully expected another turbulence upset. This scenario came completely unexpected( guess some thought went into it!)

Maybe put AF in a different light.

Maybe people on here would have known better, so be it, but for me it was a humbling experience!!!!

Last edited by flyburg; 8th Jun 2012 at 22:02.
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