Originally Posted by
mbcxharm
But it is basically for a similar reason, although the technicalities behind the 340,000 lb (154,221 kg) weight I’m not sure about. I have been trying to look for the old bulletin which explained it all in greater detail than before it was incorporated into the FCOM/FCTM. My only justification for saying this now is this note from the FCTM which is appended to the chart for touchdown pitch attitude vs weight, which reads:-
“Note: When airplane gross weight decreases below 154,221 kilograms, the VREF and flap maneuver speeds increase by up to 11 knots. The increased speeds at lighter weights will protect directional control of the airplane and result in a lower pitch attitude.”
My search for the old bulletin continues…
Thank you! Curious as to why that would improve directional control, hoping someone can find that old bulletin!