Airfield QNH - what's the point?
Why do Airfields not use the QNH of the surrounding Region?
If I'm inbound, the airfield's QFE is useful. If we didn't use QFE as per the US, then airfield QNH would be useful as an alternative. But I can't see any reason to have both.
If I'm flying past and getting a basic service, I have to conform to the airfield QNH for a few miles and then change back to the Region.
Obviously all aircraft in the area need to be using the same QNH, but why have a different one to the surrounding area?
I'm sure there must be a good reason, but I'm blowed if I know what it is.