BEWARE confusion here!! MD11 - that is NOT a minimum! That figure is for GROUND USE only of ELEC hydraulic pumps. There is no associated airborne minimum and you can taxy below that with the ELEC pumps OFF.
At last we seem to be getting some sense (but not from Gunger!).
SO:-
1) Its an Aussie thing
2) It is an
absolute MINIMUM overhead at 1500' and not a PLANNED fuel.
I've never come across it, but it makes sense to me if that is your comfort zone. Problem solved? Just a pity we didn't get that information at the beginning.