Bring back "Tunnels In The Sky" anyone?
AKA Combined Control Function.
There was a model of the airspace at Farnborough back in the 1990s. Lots of little plastic tubes looking like a Gordian Knot.I was stood looking at it with an American friend, when the NATS person we had been talking to rushed off to greet some visiting Arab.
i"We used that acronym in "Nam" my American friend said. "Stood for Collosal Cluster F***k"
Not a lot had changed I think.