Birsspeed
we talking about offsetting on busy airways once in the cruise, not in terminal areas
I know, and it makes a lot of sense to everyone, but for the mathematicians the formula does not differentiate where you are , therefore no, and there were other issues, too long to elaborate here .
I do not think we will ever get a regulation mandating it , but if you fly offset yourself 0.1 or 0.2 of a NM to the right nobody will see it, especially not in oceanic airspace
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In the good old days of the CL44, we always flew 100 ft below westbound and 100ft above eastbound. the captains called it " life insurance" , but that was at a time where there was lot of traffic at FL240 and with old mode C transponders and where the ATC tolerance was 300ft...Unfortunately today mode S will spot you deviating 25 ft and with RVSM that is no longer an option either !