Originally Posted by
tossbag
Agreed, but if it's consistent around the world (and I don't know that it is?) then there's no ambiguity with foreign crew operating into Australia. Or Australian crews operating overseas. I personally think that the use of the word 'mayday' in this instance is over the top, but it's the only word that will grant the crew the priority it requires.
No, OS ATC will try its' best to avoid an emergency rather than allow one to happen.