Does any know this? Like 737NG has fmc to calculate torque(with temp) for takeoff,but PMDG not provide this kind of document.

Hi Jia-Hsing Fu. Did you have a look at the "PMDG J41 Pilot Tutorial" on Page 73 : Advanced Takeoff Operations?The Captain talks about it there. Is that what you are looking for?Cheers -- Pete.

Hi PeterYes,this is i talk about,"Reduced Torque settings for takeoff" or cruise ,in addition i found this was discuss before..but seem pretty complex.>http://forums1.avsim.net/topic/286655-fo-power-setting-and-torque-limits/