big cat,
I'm curious to know the specifics of your statement -
Setting the pressurization switch to manual has little or no effect on cabin pressure.
Since in reality it makes a very large difference to the cabin pressure, I'm wondering just what was the position of the outflow valve at the point the switch was set to manual?
I'm totally avoiding the question of that big indicator light above the switch that shows MANUAL, when it's set.
On landing, the outflow valve autos to fully open slowly, so it's always fully open unless the switch is set to manual and the valve intentionally toggled towards closed.
I can't understand how, if the valve is fully open (and who knows if it was) it doesn't make any difference to the cabin pressure - of course it will!
Cheers, FD
