You can backup the original b737.tmd file and then modify the text file and increase the mass of the rigidbodies. That increases the mass and inertia and the takeoff distances automatically get longer.
I recommend not using 100% throttle input because you then produce more than the rated thrust on that engine. Move the throttle levers up to about 95% or so to set a takeoff EPR value of 1.5 (yellow bug). Then the engine produces the correct rated takeoff thrust. This way the N1 is also not in the yellow or red line area. If you arm the auto throttle, set on the FDs for takeoff and then push the TOGA buttons it will automatically set this thrust for you.
Once we implement load and fuel masses you can obviously play around with this much easier and set a more realistic fully loaded mass for takeoff.
Will we be seeing fuel any time within the next 8-9 months or in the far future?
