Originally Posted by bomarc
on the airbus:
can you reverse with nosewheel off the ground?
can you deploy ground spoilers with nosewheel off the ground?
Again: you cannot deploy ground spoilers. The aircraft does that.
Originally Posted by hetfield
@bomarc
Yes you can, but it's not recommended.
You can and you should deploy R/T, it is standard procedure.
FCOM 3.03.22: SOP
LANDING
Select MAX REV immediately after main landing gear touches down
So, reverse thrust will reach MAX within a few seconds, possibly co-inciding with NW touchdown, but quite possibly earlier, depending on the derotation. The FCOM warns about a slight pitch-up moment when R/T is deployed.
Wheel braking is another matter. To quote said FCOM again:
Braking may be commenced before nosewheel is down, if required for performance reasons; but when comfort is the priority, it should be delayed until the nosewheel has touched down.
This is the same page that includes the requirement to make a full stop landing after R/T has been initiated.
However it should be noted, that the PIC (pilot in command)
always has full authority to do what he deems necessary for the safety of the passengers, crew, people on the ground and aircraft.