SmokingHole:
Hmmm, still air on the Nullarbor/transline/Eyre Highway this time of year.
Not quite so!
I just completed a flight from MEL to JT in a C172 and it took close to 20 hours with groundspeeds in the range from 23 to 117 knots with a typical GS sitting around 72 to 88 knots. Had to stop at YMIA, YPAG, YCDU, YFRT, YCAG and YPKG for fuel.
PlankBlender:
Check latest fuel status at YFRT before you set off. As of yesterday, I heard that they were running out of AVGAS and were limiting fuel uplodad to only 100 litres per aircraft; just enough to see aircraft on their way to Nullabor Roadhouse or YCAG which had unlimited fuel. Apparently, the refuelling truck from KG is not expected at YFRT for some weeks yet.
Also as SmokinHole has indicated, new AD operators take over from Monday.