Quote:
Originally Posted by Grahame Hutchison
I thought it was interesting that the aircraft was still only at FL280 after 2hrs 41min of fuel burn - I guess they have a heavy fuel load for the 16 hours 22 minutes flight time.
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Grahame, no doubt they are step climbing due to the load but I also suspect FL280 is optimal cruise over Australia, as the jet stream is quite significant at FL300 and above. Have a look at the Sydney aerological chart, I suspect it's been a similar story for a few days.
http://www.bom.gov.au/aviation/obser...ical-diagrams/