Originally Posted by FlyingForFun
So, in conclusion, I'm not really sure, but I think DFC is probably right. But, as IO540 says, it's completely academic in any case.
FFF
----------
I don't believe it is academic:
Class D airport, say Bournemouth for example.
IR pilot cleared on an approach passes through height 1000' descending, ATC may pass further viz/RVR and even if they do and it has dropped below 800m the pilot may continue the approach.
IMC rated pilot cleared on the approach passes through height 1000' descending, ATC may pass further viz/RVR and if it drops below 1800m the pilot
must go around.