Am currently looking after the neighbour's cat. He's a helicopter pilot (been gone since Thursday) and she's an HR type who does some volunteer trauma counselling, who left yesterday.
I doubt all the aircraft ever made would have helped much on Saturday, simply brutal conditions. Melbourne's temperature peaked at 46.4C (115.5f), an all time record. Add winds over 50Kt at times and the fact that the place has been baked dry for over a month and it's amazing in some respects that it didn't reach the sea.
It's not over yet, but the worst should have passed. To top it off, in the north, 64% of Queensland is flood affected.