|Quoting Kiwinlondon (Reply 1):|
The answer to your question is in some circumstances, sometimes the 742 could fly at least the same distance. For example NZ on occasion did fly their 742's AKL-LAX and LAX-AKL non stop. That said not sure if there were weight restrictions, I also know that it was not unusual for them to have to make a diversion sometimes for more fuel, particularly east bound. Whereas PA used to fly the SP nonstop AKL - LAX and SYD - LAX nonstop. The difference being there were no ifs, no buts, the SP did not need to make a fuel diversion with a full load. I am 99.9999% certain that a 742 could not do SYD - LAX non stop with a full load.
I used to love watching these NZ 742s, take off on those LAX-AKL trips. They used almost all of runway 25R, ( LAX's longest runway at the time) and they lift off, behind the AA hangers. Their engines, would be close to full power. Their rumble, would be almost as loud as a DC-8-63's.
QF used 743's, on the LAX-AKL route, in the late 2000's. I was living in VA at the time, but I did see one take off in the summer of 2008, while I was visiting my family in Los Angeles.