LB
So why do you think that the airspace system in Australia requires you to do that?
Errr? Because it takes two to Tango and experience has taught me not to trust amateurs. Not bagging all amateur pilots of course but I don't know which ones I can trust and which ones I can't, so I don't trust any of them
unless I can see them.
I want what Dick said in post#25
I suggest if you can’t see out properly from your aircraft you should be only flying in a minimum of class D airspace.
Class D minimum for High Capacity Jet Ops.
I'm not interested in the cost. That's somebody else's affordable safety crusade.