I've been wondering what the Flight Director would command in pitch if (for whatever reason) it ignores the fact that airspeed is below VLS. I would think the FD would then command the change in pitch attitude that changes the current vertical speed to the selected value, i.e.:
ΔPitch=ΔFPA=ΔVS/TAS (1° =~ 700 fpm @ 400kTAS)
That ΔPitch, i.e. the angle between the aircraft symbol at the center of the attitude display and the FD pitch bar, was within ±1.5° in the 23 seconds after the FD became available. Would that explain the PF's sidestick inputs?
Last edited by HazelNuts39; 20th May 2012 at 14:29.