Originally Posted by
chevvron
Simple. If your unknown confliction is showing a '7000' squawk (indicating a/c not receiving radar service) and no altitude readout you vector your own traffic at least 5nm away from it to allow for an unpredictable turn by the unknown.
If it's showing an altitude readout then irrespective of what is set on the aircraft's altimeter which will always transmit an altitude based on 1013.2 hPa, if the altitude indicated on the radar display (which will have the current QNH dialled in to enable it to convert from 1013.2) is showing 3,000ft above or below your traffic then traffic information is sufficient; if it's less than 3,000ft then the above applies.
I've never worked in Class E airspace, only Class G but I would imagine you would take the above action in airspace of either classification.
Chevvy,
Precisely! So there is not a gnats privates difference between class E - as proposed by EASA - and what actually and currently happens under a Deconfliction Service at the moment in UK class G!! On reflection therefore, one could argue that a potential widespread adoption of E by airports currently operating under G will change little for the end user.