The Qantas Flight#107 - is that one contiguous flight ? I know it stops in Los Angeles both ways, to depart passengers and to refuel. But I guess my question is this, when I review and analyze the flight leaving from JFK to Los Angeles I notice the chosen flight level is much higher than the flight which leaves from LAX.
The flight leaving from JFK traverses across the US at FL40 where as the flight leaving from LAX has a much lower and longer duration at FL28. I know that there are specific ‘step climb’ procedures, but is it a fair statement that leaving from JFK they leave many of the tanks ‘dry’ allowing for a much higher, and therefore more efficient altitude and cruising speed ?