Originally Posted by mm43
If the SS was left to center, what would the THS eventually do?
After 02:12:30 the SS went through center a number of times, the elevator responded by coming down from -30 to -15 degrees, but the THS did not budge (see IR#3 p.41 for better resolution). FWIW, my educated guess would be that the THS would start to move when the elevator goes past the neutral position (as in Perpignan).
Originally Posted by DozyW
From that point the speed is reliable until the stall is so heavily established that stalled air begins to foul the pitot tubes, static ports and AoA vanes - which coincidentally is when the Stall Warning stops after sounding for almost a minute.
The pitots, static ports and AoA are all on the forward fuselage, not really in 'stalled air'. Some time ago I posted a comparison between the IAS recorded from the ADR's and the CAS calculated from ground speed. The two speeds started to diverge at around 02:11:30. For example at 02:11:43 the values were 100 kIAS vs 133 kCAS.