These things are able to do the longer range flights, ANA has a daily Frankfurt-Tokyo service, but to do it you need decent engines and a sensible seat plan. Jetstar is woefully inadequate when it comes to operational planning, probably had some MBA business graduate work it out. The way Jetstars 787's are setup they are pretty much a domestic or near regional aircraft. And that is a fact...Which is pretty much useless as they wanted a longer range for the 330 replacement. I have heard rumours number 6 or 8 will have upgraded engines but not sure. Deers with no eyes, Deers with no eyes....