Bookworm
Thank you that is interesting. I was told quite specifically that the UK derogation was airspace related and not aircraft/operator related. This seemed quite sensible to me. It does seem that the transition arrangements have been fluid so it could have changed. I would still like to know the wording of the actual derogation as notified to EASA if anyone has seen it.
However, I still do not see how the UK derogation can extend outside of the UK given that these aircraft are not registered in the UK and their pilots are not within the UK licensing system. It seems to me that if another Member State has not issued a derogation then the requirement applies in their airspace and flights by UK based aircraft will be illegal unless the pilot has an EASA licence.