Thanks again NorthSouth.
Originally Posted by
NorthSouth
It doesn't! Active TRAs remain Class C, but they have different rules in order to allow autonomous VFR flight by (mainly) military aircraft.
Brilliant! So it is Class C, but effectively becomes Class E/G during notified times, and "reverts" to Class C when not active, but is, at all times, officially Class C controlled airspace............
Originally Posted by
NorthSouth
Here's how the AIP describes it, at ENR 1.1 para 5.1.5.1.2:
In complying with the EC Regulation lowering Class C Airspace to FL 195, Temporary Reserved Areas (TRA) between FL 195 and FL 245 have been established to accommodate the various VFR UK airspace users including military autonomous operational requirements above FL 195. TRAs may be used simultaneously by both civil and military aircraft, including aircraft in en-route transit through a TRA. Operations will be conducted in accordance with the Rules of the Air, or as agreed via the Unusual Aerial Activities regulations, and required equipment carriage and operation. Although the background classification between FL 195 and FL 245 within UK airspace is Class C, to avoid operational restrictions, military aircraft may operate autonomously or be in receipt of an ATS from approved ATS units within a TRA. ATS in TRAs will be provided in accordance with the UK Flight Information Services (UK FIS).
That, coupled with about 4 or 5 other sections that describe UK airspace structure and use, TRA's and UK ATS/FIS, gives a whole range of information that is contradictory and confusing to the end user. Sounds like a consolidation exercise is required to tie up the disjointed information that is promulgated about such airspace (Including in route planning documents) to ensure that users are being given the full picture rather than leaving front line ATCOs to field the queries on a day to day basis!
I'm sure that the CAA/NATS are all over it though.......
