What a masterful exposition, forget, thank you!
I would only add that the UK CAA, presumably taking its cue from legal documentation, uses 'aerodrome' (not airfield), but 'aircraft' (not aeroplane).
Sorry about the thread drift - but I've always been mildly fascinated by the fact that Americans wear flight suits and talk about flying safety, while Brits wear flying suits and talk about flight safety.
And don't get me started again on 'base' versus 'station'.....
airsound