I can't realistically see a 739ER operating a 2500nm leg with 200 pax. And I have been working the 757 replacement case for the last two years.
If you put 200 people into the B739ER you are right up against the MZFW, and leave probably about 1000 kgs of bags behind.
Then you can add about 18.400 kgs of fuel which might take you at best about 2500nm assuming 3000 kg fuel remaining on landing.
Last edited by oceancrosser; 27th Feb 2013 at 11:04.
Reason: B739 further info