EdwardS wrote on Feb 24^th, 2012 at 2:45pm:

Ah, thank you very much. I wasn't sure that FSX was handling that aspect at all. So it is but from our limited resources plotting the affects of it is not really practical.

yep, BUT!!! There is another side.
Planning the flight, calculating EFU, required runway for TO, checklists, tables etc, - that is not required in FSX, youll can fun without it.
But if you want - you can fun with it. So thats for me most of the time :)

Thanks to this forum members we have precisely flying b727,  and tons of info how to fly it :) so digging all that kitchen gives more satisfaction after landing ;)

btw, CoolP said that  B707 fuel tables good for cs707. EPRs -not, but fuel can be planned by Boeing manual. Havent check it yet, but i got 707 waiting for right time ;)