A320...DES mode Vs Selected Speed
hello...
if you are descending on managed speed and DES (managed) mode ...let's assume that the managed speed is 280kts...
the ATC ask you to increase the speed to 320kts...
i would go in this case to pull the speed knob and rotate to 320 kts..
in this case...are the altitude constraintes are still respected by the DES mode.
i.e is the profile on the DES mode will be adjusted for the new selected speed 320kts...or will it be based on the old managed speed 280kts...
or do i need to go open descent to go lower than the profile ...to cater for the speed reduction distance..
thanks..
and appreciate if some one give the reference in the FCOM.