Is there something like this for the 737NG.http://www.mbev.net/lds767/tocrduse.pdfThanks,Bob

That's nifty.I haven't seen one around.. maybe a search in the avsim library will turn something up. I'm a little sloppy with the 737, as long as the runway is long enough for air carriers that fly the bird I just load her up and go. She is such a spirited bird, loves to fly. Her only problem has been when pilots are too sloppy on approach and come in either too fast or overshoot and don't get on the reverse thrust in time (Burbank and Midway come to mind).

I use a freeware program called UTOPIA for calculating derated takeoffs. It works for the LDS 767, PMDG 747 and 737, PSS 757 and 777. Seems to work very well. Takes into account the runway length, weather, and take-off weight. Do a search on Avsim for UTOPIA, that's where I found it.

Thanks,will give it a try.Bob