My update: called the ECA phone number in the NOTAM. Answred by someone at DEFRA who "just picked up someone else's phone." Explained reason for call. Told that they didn't undersgtand what I was talking about - she would get another bod to call me.
30 mins later DEFRA man called. Explained again. He said he knew nothing - but would get someone to call me.
60 mins later DEFRA press officer called to say that we should speak to the CAA.
There are only 2 lawful reasons a RA(T) can be established: (1) in the public interest or (2) in the interests of national security. With traffic at ground level permitted inside these Restricteds, there is no reason why either of these reasons can be used. The M25 isn't shut.
As for noise - that's b*ll*cks. For lawd's sake - these animals live next to 2 motorways.
No - this is DEFRA taking authority over our airspace to keep the media out. And thereby mucking up everyone else.