Originally Posted by Gums
So if the stab is fully trimmed and the crew tuens off the trim, then all they have is basic elevator, right?
You can trim it by manually turning the trim wheel.
Originally Posted by George
Having personally experienced an Airspeed Unreliable event in-flight I can only say that the startle factor is massive.Simultaneous stall and overspeed warnings is a challenge to say the least.
And then you're supposed to notice the trim quietly winding itself full nose down...
It should be one or the other. As mentioned previously, if there is a chance that the trim will runaway during a Unreliable Airspeed scenario, then "Stab Trim OFF" must be one of the memory items.