No problem Numpty.
RVSM is scheduled for the rest of the UK for April 17th I believe. Our experience is that it will be a big help.
Going back to Spodman's original question I believe your system would not pass any safety case in the UK if it is not reliable. At the moment as AYR says we indicate all compliant aircraft. The proposal is that we change to indicating non compliant aircraft as they should eventually be the minority.
Spod - do you mix compliant and non compliant in all airspace ?
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Go with the flow ... or you'll miss your slot.