juliet - with wing fuel it's an awesome trans Atlantic bird (8-9 hr). With center tank fuel it's an awesome 15 hr(+/-) bird.
Didn't realise it came without a centre tank! Non ER models?
200ER has a max of 137,500kg. Haven't seen it filled past about 105,000kg and thats doing 15hr flights. To be honest I wonder why they bothered making the tank so bloody big.