The UK’s Civil Aviation Authority has confirmed that advisory routes (ADRs) used to manage Class F airspace are to be replaced by Class E “airways”, designated as transponder mandatory zones, or downgraded to uncontrolled Class G airspace.
The alterations are being made following changes to European airspace rules and follow recommendations from ICAO.
The dimensions of the new Class E airways will not mirror the exact dimensions of the ADRs they replace. Some base and upper levels are to be revised and extra airspace will be included in the vicinity of the Aberdeen CTR/CTA.
The changes will come into force on November 13 and details are available from the UK Aeronautical Information Service.