The idea of a National Aviation Museum was floated 30 ? years ago. Out of Cantberra, talkfests, promises?? and never any funding or a result either. .Someone else may know more about these past machinations that had no positive outcome.
Now with smaller Museums all over the country..its of benefit to communities there other than the fairyland of Canberra where big bucks can be splashed about...depending on the political idea of the time eg 1/2 billion for War Museum, "Saving" the Barrier Reef etc. Aviation ?? Que ?
The winning flight in the Vimy landed in Oz in Darwin, but their journey terminated in Adelaide.
It used to be readily visible before the Big Dollars from Car parking, and new terminal caused a shift.
Inside the Adelaide Airport terminal, many more people would get to see it, I'd reckon than housed in a CB facility..as yet un-built.
The 'Southern Cross ' at BNE terminal is a bit out of the way..you have to be interested enough to pull off the road and go for a look. Not so many do that.