Originally Posted by
PEI_3721
maui, severe turbulence only.
Maybe, but how will you know if the turbulence yet to be encountered is severe, or for that already encountered, then it's probably too late to change speed.
The AFM turbulence speed is just that; and why all this concern about low speed margin?
Severe turbulence encounter is very, very, rare. I can recall on in over 20,000 hrs.
We've prepared for severe turbulence more often but actual encounters is very rare.