Ok, I'm still in a Boeing state of mind. Even after reviewing the FMC manual I am still not performing the required steps correctly. I'm at .820/FL350 and I would like to burn a little fuel off. So I want to slightly modify my active flight plan to reflect a .80/FL310 configuration. With a Boeing I could just go into the Legs Page and modify the auguments that I find there and press EXEC to imput the changes. Is there a method of doing the same thing using the MD-11 F-PLN Key.Please point me to the correct page in the manual. I have attempted to make the change using INIT Key for the speed (and it worked), but on the altitude side I have made numerous errors. Using other keys found on the FMC I keep seeing the "Not Allowed" statement. I select 31000 ft on the FCP and pushed/pulled and adjusted yhe V/S to a -500 ft/min and the aircraft descended to 31000 ft from 35000 ft. I then reset PROF by pushing the key. Later I wanted to set up my approach I went back and selected 3000 ft on the FCP prior to passing TC. Although I was expecting it to fly the fly plan, it began to drop like a rock to 3000 ft. I'm doing something wrong, I just need a push in the right direction. Again please point me to the correct page in the manual.ThanksTom

Ok, I'm still in a Boeing state of mind. Even after reviewing the FMC manual I am still not performing the required steps correctly. I'm at .820/FL350 and I would like to burn a little fuel off. So I want to slightly modify my active flight plan to reflect a .80/FL310 configuration. With a Boeing I could just go into the Legs Page and modify the auguments that I find there and press EXEC to imput the changes. Is there a method of doing the same thing using the MD-11 F-PLN Key.Please point me to the correct page in the manual. I have attempted to make the change using INIT Key for the speed (and it worked), but on the altitude side I have made numerous errors. Using other keys found on the FMC I keep seeing the "Not Allowed" statement. I select 31000 ft on the FCP and pushed/pulled and adjusted yhe V/S to a -500 ft/min and the aircraft descended to 31000 ft from 35000 ft. I then reset PROF by pushing the key. Later I wanted to set up my approach I went back and selected 3000 ft on the FCP prior to passing TC. Although I was expecting it to fly the fly plan, it began to drop like a rock to 3000 ft. I'm doing something wrong, I just need a push in the right direction. Again please point me to the correct page in the manual.ThanksTom

You're right, MD11 is not Boeing...FMS Manual...Cruise FMS.40.27 and following...there are procedures to change the cruise speed and to FL change in climb or descent...Cheers,

Thank you. My focus was that the INIT Key was used for step climb. I now understand that it is used for both climbing and descending.Tom

Thank you. My focus was that the INIT Key was used for step climb. I now understand that it is used for both climbing and descending.Tom

No problem at all...I enjoy eating the manuals, i have the printed ones...i love the technical part behind an airplane (as an engineer student)...Hope you will enjoy them too...Cheers,

To alter your speed inflight go to the Perf page and use edit. To alter your FL go to init and change it to the new level at crz.Before the flight check at Prog page how much fuel there is left at your altern. Should be Ok around 9 or 10 tonnes or about 20 in lbs. Otherwise adjust your payload when over MLW at destination (not altern).Rg,John