>I don't think it's a company option, it is probably already >programmed into the TMC by Boeing.That doesn't exclude the possibility that it's a "company option", or a feature of a different software version, and so on. What matter is that not all 767s are the same - on some the derates "wash out", so you don't have to select full climb thrust, but on some the derates don't wash out, so you have to select a higher thrust limit when climb performance gets bad.Martin767 fetishistIt's a lot like life and that's what's appealing

Oh, I didn't know that. What airlines don't have this 'wash-out' derate? I don't see why some airlines would choose not to have this option when Boeing deems it suitable for the B767...Regards

This is my opine too GE. We know what is taught being that we have documents showing that this is the case. If Martin has some proof that there is another "option" then he should at least provide to evidence to support this idea. Now this is in regards to the 767 series ONLY, not the 757 which we know is differn't. I like to add that there ARE customer specific ordered climb 1 and 2 thrust setting limits, what effect this has on the 12'500 auto change to full climb thrust I don't know.Best Wishes, Randy J. Smith [h3]" A little learning is a dangerous thing"[/h3]AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ][i] K7S5A MB[/i] |GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

American Airlines doen't have it in their 767s. That is why it doesn't exist in PIC. You shouldn't assume that because some feature is present in one 767 that it is the same in all. There are many differences in configuration for the same airplane type.Wade

Hello again everyoneThank you for clearing this up for us Wade. You are right, we shouldn't be so quick to assume. I just thought that this was quite a good option/feature on the 767 so I was puzzled why any airline would not want to have this derate 'wash-out'. My guess is that perhaps AA places a lot of importance on engine cost/maintenance so they prefer so have a derated climb all the way.No doubt a lot of money can be saved in the long-run, but then I'm curious to know why most other airlines choose to have the derate 'wash-out' if that was the case. I'm sorry for the misunderstanding Martin and Mark and thanks for the discussion. :)Guess we learn something new everyday. ;)Cheers

>a derated climb all the way. I don't think they leave the derate selected all the way up. If the climb rate gets too low, they most likely switch to CLB 1 if using CLB 2 at first, and eventually switching to full CLB thrust (if needed - I guess that with a light aircraft the derate can be left on all the way).Also:I have a 767 AOM from an airline that has five 767-300ER aircraft. Even a short glance at the manual will reveal that there are a lot of differences between the five planes. For example they don't have the same weight limits (MTW, MTOW, MLW, MZFW), they don't have the same landing and takeoff crosswind limits, they have several different FMC models/software versions, and they have different audio panels. And there are countless of almost microscopic differences; On two of the aircraft the seatbelt/no smoke signs illuminate whenever passenger oxygen is on, on the other three this doesn't happen. One of the aircraft has two fixed takeoff derate settings (TO 1 and 2), so the 1 and 2 buttons on the TMSP work a bit differently on that aircraft.Not to mention they have different door configurations. :-)Martin767 fetishistIt's a lot like life and that's what's appealing

Hi Martin:Wow that's really interesting. Guess no two planes can be exactly the same, though I didn't expect such major differences. May I know what airline that is?Having TO1 and TO2 is pretty convenient too, do you know if most other airlines have that? Thanks again...Cheers

>May I know what airline that is?Let's just say it's a major racing driver owned airline. ;-)>Having TO1 and TO2 is pretty convenient too, do you know if >most other airlines have that? No idea. Generally I guess that the newer the individual aircraft, the more advanced FMC package and other little goodies. :-)Another perhaps interesting difference is that in some FMCs V speeds are calculated automatically like in PIC, if the relevant numbers have been entered, but in other FMCs the V speeds have to be input manually, or uploaded by ACARS. (Good to know if someone comes up and thinks PIC is unrealistic just because "his" 767 behaves differently.)Martin767 fetishistIt's a lot like life and that's what's appealing