RoseFlyer From United States of America, joined Feb 2004, 8746 posts, RR: 52 Reply 3, posted (1 year 8 months 3 weeks 1 day 4 hours ago) and read 4296 times:
They are usually confined to SYD-DFW, SYD-LAX, MEL-LAX, SYD-EZE and SYD-HKG. They can end up other places, but rarely LHR unless that has changed since A380s have taken over some LAX flying.
If you have never designed an airplane part before, let the real designers do the work!
thegeek From Australia, joined Nov 2007, 2611 posts, RR: 0 Reply 4, posted (1 year 8 months 3 weeks 1 day 3 hours ago) and read 4288 times:
Quoting RoseFlyer (Reply 3): They can end up other places, but rarely LHR
That's mostly to do with the premium heavy cabin config. Apparently there's lower demand for F/J on the LHR flights than the LAX flights. But with the A380 they've gotten rid of that distinction. Go figure.
wn700driver From , joined Dec 1969, posts, RR: Reply 9, posted (1 year 8 months 2 weeks 6 days 17 hours ago) and read 3881 times:
Quoting rmm (Reply 8):
The GE has a better fuel burn than the Roller with or without the extra tank. The GE is also somewhat lighter as well.
That. And it may also be that GE has an exclusive (had I guess since you can't buy a new 744ER anymore) on that subtype the way they do on the 77W & 77L/F. Otherwise, fuel burn aside, QF may very well have stuck with RR, being that there are only 6 ERs in the fleet (and world for that matter). It can't be a very good economy of scale, I would think...
wn700driver From , joined Dec 1969, posts, RR: Reply 13, posted (1 year 8 months 2 weeks 6 days ago) and read 3731 times:
Yes, that's what I meant. The RR was never available on the 744ER, or else they probably would have boguht them that way. I didn't know P&W was a choice though; I thoguht it was only GE...
gigneil From United States of America, joined Nov 2002, 16215 posts, RR: 88 Reply 14, posted (1 year 8 months 2 weeks 5 days 23 hours ago) and read 3721 times:
Is there a 63,000 pound RR engine that would have even worked?
Edit: there isn't. The -524G/H-T is only good for 60,600 pounds. Not enough for the increased weight of the 747-400ER.