Originally Posted by
zerograv
How does this work in terms of ATC, namely, separating other traffic from this flight ? Does ATC receive their Flight Plan and more or less know what's going on, or that's not the case ?
In areas with radar coverage it will be visible to ATC and therefore ATC can deviate other traffic from him, but once it gets in the Atlantic there are large areas where it will be out of radar coverage.
When flying at non-standard FL outside the normal IFR corridors, reduce crossing corridor sections where regular level changes may happen and don't cross the IFR corridors at/near intersections, the chance to hit "something" is pretty small. Much smaller than getting hit by something "war" related in Ukraine.
And for ETOPS, the same applies, even without being ETOPS certified, the chances are pretty low you'll need the ETOPS items.
Everything around ETOPS & IFR rulings allowed to be sacrificed to get war stuff from all over the world to win the war with Ukraine. Not sure, IF this is applicable to the named flight.......