Originally Posted by
rudderrudderrat
Having the stall warning alert only via the auditory channel is not a good design during high work load situations.
Which is why they've recommended bumping up the visual component, at a guess...
If you were busy arguing with Lyman in a noisy party and I wanted to get your attention, the most effective way would be by touch (on your arm or shoulder say). It's a completely separate channel with no competition from any other warning - as is the stick shaker.
Heh.
I'm well aware of the theory that the tactile channel - as separate and distinct from audio-visual - can get attention when audio-visual can't, and it makes sense in terms of pure logic and psychology. This doesn't alter the fact that in times of high stress workload in the flight deck, shakers have been ignored multiple times. The only way to know for certain would be to blind-test the two methods, but I don't see that happening any time soon.