Almost always to the right!
The avoidance rules for air traffic are clearly described in the Standardized Rules of the Air, or SERA for short. Nevertheless, there are always ambiguities as to who has to avoid whom in which situation. Frank Peter Dörner, a lawyer specializing in aviation law and a passionate pilot and flight instructor, has taken another look at the subject. …
The article appeared in aerokurier “Flight Safety” 2020 (https://aerokurier.de) and is available here as a pdf: