Originally Posted by
Fl1ingfrog
ATZs in the UK are normally Class 'G'
This is probably true overall, but ATZs take on the classification of their surrounding airspace so although not always marked on the map the larger airports in class D airspace also have an ATZ with subtly different rules (eg application of Met. criteria). Pilots should all know what VMC they can fly to in which airspace but the rules change so often that it’s hardly surprising there is confusion. ATC are not the police, but can only issue clearances down to their differing minima. If you asked me for a VFR clearance at a class G aerodrome in crappy weather I would feel duty-bound to point out the crappiness of the weather, but wouldn’t be likely to have to power to prohibit flight. I could feel the need to report the matter though and you might find yourself being unwelcome at that airfield.