Confiture said:
(quoting theShadow)
The THS is trimmed for a lower speed and so the baro-hold is causing the autopilot (at the higher actual airspeed) to hold stick forward/elevator down pressures.
I don't think it is the way it works. The THS is not set in function of the indicated airspeed.
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Confiture,
1. Are you able to expand upon this and supply/propose what the alternative input factors might be that normally cause the Trimmable Horizontal Stabilizer (THS) to auto-trim?
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2. Are you placing a different interpretation upon the BEA statement (which is admittedly a mite obscure)?
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3. Do you not subscribe to the theory that the autopilot could have kicked out due to holding a limiting force gradient in the pitching plane? (
and therefore that the surprise factor that may have made all the difference to any subsequent loss of control could have been a sudden high-rate pitch-up)
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