Is there such a thing as "Regional QNH"?
Instructor chappies - and chappesses....I got into a conversation recently with a guy who tells me that there is no such thing as a "Regional QNH".
I was convinced that when I used to operate in the UK there was a deal where the UK was split into numerous "regions" for altimeter setting....and it was called a regional QNH.
Any comments - is there a "Regional QNH" in the UK?