UK overflight of non ICAO compliant permit to fly aircraft

[Donald Walker]

That is perfectly clear, and makes it easy for the French. Not so easy for owners of factory built permit aircraft registered in other countries, except Ireland, who have to comply with this

For Article 33 and Article 24 & 33 exemptions/permissions £64

The exemption can be valid for up to 28 days in any 12 month period.