BH- For a given number of pax an ULR A/C is the way to go, but that's not how QF operates. Take the 200LR SYD-LHR the figures being quoted were about 180-200 pax and using 150+ tonnes of fuel. Now, fly the same A/C to LHR but stop in HKG. On that flight you can carry 300 pax + freight and your fuel burn only increases marginally. That's what I meant. Obviously I'm rounding and estimating but the exact figures work out the same. That's the 2 year old martian view anyway.