Originally Posted by
Jester64
That is what is commonly said on the line, but it is not entirely correct…
as per FCOM:
”All actions performed on the FCU and MCDU must be checked on the PFD and ND (eg.: “FL350 blue”, “FL 200 magenta”).
Why limit ‘blue’ or ‘magenta’ to just altitude? Because the FCOM only gave altitude as the example? The blue / magenta philosophy extends to speed / Mach also. The key words in the above FCOM extract are ‘all’ and ‘eg.’ That is why you call ’blue’ or ‘magenta’ after your speed ie ‘speed 250 blue’.
Not quite.
You will not find anywhere in Airbus documentation "speed 250 blue" or so, because the speed simply does not change color, the speed target does. Same concept for the heading or track.
When You select an altitude or a FL, the selected value itself will be either blue or magenta.