Originally Posted by Farmer 1
However, nothing compels you to use QFE. But to use QFE you need a low-lying area, like the UK. Trying to use it at places like Nairobi is a waste of time.
Quite right, but two points...
I was under the impression that various military units actually imposed QFE reference on civil transits of their MATZ or CTR.
If you are going to mix and match depending on the aerodrome elevation, therein lies a potential problem in itself - getting away from a
standard operating procedure - hence the "use QNH as a norm" argument.