Originally Posted by
squawkident.
Hi,
Just a quick one.
I remember some time ago during my initial line training that in the Landing Perf. page, the only calculation the QNH and Temp is used for is to set a pressure altitude.
This is so that the airplane can work out its descent rate and cabin recompression from cabin alt. to pressure altitude on ground.
I've been trying to find a reference to this but to no avail. Does anybody have any input on this?
In summary, my question is simply: What calculations are the QNH and temp. variables used for in LDG page.
Thank you