Why are airline companies not introducing a non-stop flight from western europe to western Australia?

I mean, I just checked, the length of i.e. Frankfurt-Sydney is around 9050 n.m. (not just from A to B, but with airways and SID/STAR) . The max. range of the B777-200LR is about 9380 n.m. So, this would work (also with enough fuel for alternates etc.) If you have now a constant tailwind of around 20 knots during... show more I mean, I just checked, the length of i.e. Frankfurt-Sydney is around 9050 n.m. (not just from A to B, but with airways and SID/STAR) . The max. range of the B777-200LR is about 9380 n.m. So, this would work (also with enough fuel for alternates etc.) If you have now a constant tailwind of around 20 knots during the whole trip, the length wouldn't even be 9050 n.m. (so more like 8500 n.m.). So, this would perfectly work, right? Why doesn't Lufthansa or Qantas not introduce this? (OK, I know that for the way back (Sydney-Europe) you would have to make probably a stop-over, if you consider that now you have a constant headwind of around 20 kts)!
But at least, you can fly to Australia non-stop, in about 17,5 hrs.....
Update: I'm sorry, I meant of course flights to eastern australia (Sydney, Melbourne etc...)
Update 2: to 1.: well I know, but I have calculated on weather charts at FL350, and the average wind would be a tailwind of around 20 kts for this day.. 2.: hm, I didn't know that china doesn't want that you fly over their western parts...why? 3.: B777-200LR has 9380 n.m. max. range.. so I think this should work,... show more to 1.: well I know, but I have calculated on weather charts at FL350, and the average wind would be a tailwind of around 20 kts for this day..
2.: hm, I didn't know that china doesn't want that you fly over their western parts...why?
3.: B777-200LR has 9380 n.m. max. range.. so I think this should work, even with alternates (besides, when you fly with a constant TAS and an average tailwind of 20 kts, your "distance isn't that long"...
4.: yeah, there you re right. In this case you'd make a refueling stop, as is even the case for some flights (i.e. frankfurt-tenerife has to stop sometimes in sevilla (B757-300), due to strong headwinds...
5.: good point, but well, singapore flies 19:10 hrs flights (ok, all business class), but Delta flies Johannesburg-Atlanta in 16:40 hrs, and they are always full)... so, 3-4 hrs more, i I guess this would be possible...
6.: yeah sure, the distance remains the same^^
3 answers 3