NorthSouth
29th Jan 2018, 16:56
I see some airfields (e.g. Barrow, Coventry) declaring that they have RFFS Category A1 but I can't find any reference to a category A1 in CAP 168, Part-ADR, ICAO Annex 14 etc.
What is it and where is it defined?
What is it and where is it defined?