low temperature correction (or not?)
Hello all,
At the moment I'm in the middle of a discussion on a Dutch Forum for pilots about low temperature corrections for a baro altimeter reading.
I am used to make a correction for a low temerature to my baro altimeter reading for a DA or a MDA if the temperature is ISA-something.
In our company is a discussion whether you should do the same on all altitudes as depicted on your approach chart. Say MSA, initial altitudes, intermediate altitudes, etc.
We also make corrections for the above when flying over high terrain, especially when using a driftdown graph in order to cross the Alps. (my n-1 net level of is tyoically something like 10000 PA)
Now the problem is some guys who I discuss with disagree about the need to do so. They claim that my baroaltimeter already has some errors, so why bother and further they claim that if you have to calculate the correction due to low temperature in order to miss the mountain peaks when n-1, you should not be out there at all.
Has anyone some thoughts about this one?
Regards, skate