Originally Posted by
vilas
autoflight, Reverb_SR71
The target attitude is not two degrees from the present attitude but minus 2degrees below the horizon, that means if you are at +4 degrees as you cross 50 ft. then from 30 ft. it will start pitching down to achieve -2 degrees in next 8 seconds. So in effect it will try to pitch down 6 degrees. This is clearly explained in a Airbus presentation exactly as what jon_smith has stated.
Thanks,
If this is true that the target a pitch attitude of -2 degrees(nose below the horizon), then it would mean that the amount of nosedown pitch input(and rate of input) by the automatics varies based on whatever the actual pitch is at the start of the nose-down trimming. Obviously, that can vary depending on flap setting, approach speed, weight, etc.
Is this correct?