Originally Posted by
tmmorris
This may sound like a dumb question, but what happens to semicircular/quadrantal rules under these circumstances? I do a lot of flying IFR OCAS and while I know it's not quite separation, I get a small amount of comfort from the quadrantal rule.
Tim
Use altitude instead of flight level. This is perfectly normal already in the USA where the transition level is up in "mandatory oxygen" territory, and on occasion in the UK.
Would be a good opportunity at the same time to get rid of the UK-only quadrantal rule and implement the ICAO standard semicircular rule. But I don't suppose that will happen.
G