Hi all there,
Reading the thread about "PACK ON / OFF take off" made me think about one thing of the bus.
On the A320 the pressurization system, during the take off roll, in AUTO mode pressurizes the cabin at a rate of 400feet/minute until 0.1PSI is reached to avoid a pressure surge at rotation.
At the same time, the RAM air inlet and outlet falp close during the take off roll (as well during landing) to avoid ingestion of FOD.
So, if we take off with PACKS OFF, how can this "prepressurization mode" work?
Thanks you all,
bio161