I'm becoming very frustrated now after about 4 weeks of owning this aircraft, that i cannot get it to climb to the designated flight level. No matter how i program the FMC, what happens is as the aircraft is climbing, the CLB LIM gets lower and lower, and eventually, it just stops climbing. PLEASE someone help me figure out why this is not working. I would very much appreciate it.THank you,Rob Jaworski

Hi Rob, The problem in this case is normally always because your too heavy to hit the intended cruise alt. If I depart for a 10 hour flight say, and I want to hit FL390, I may only be able to hit FL280 for a couple hours and once my weight is down due to fuel burn (or passengers flushing their lunch over the ocean) I can start my step climbs to my target alt. I normaly do 2000' step climbs and keep an eye on the "Optimal Altitutde".The only other time I see it a problem is if using the default weather and I get bizzarre Baro shifts and high TAT. In that case I'll either not be able to ascend or start falling from the sky even. To fly through cases like that, I just change my thrust mode.If you don't normally use the load manager, I would recommend running it and reset and distribute your weights (send to FS). It may be possible that your flight is heavier than you think? Or maybe the saved file is corrupt?Hope this helps,

Hi Rob, The problem in this case is normally always because your too heavy to hit the intended cruise alt. If I depart for a 10 hour flight say, and I want to hit FL390, I may only be able to hit FL280 for a couple hours and once my weight is down due to fuel burn (or passengers flushing their lunch over the ocean) I can start my step climbs to my target alt. I normaly do 2000' step climbs and keep an eye on the "Optimal Altitutde".The only other time I see it a problem is if using the default weather and I get bizzarre Baro shifts and high TAT. In that case I'll either not be able to ascend or start falling from the sky even. To fly through cases like that, I just change my thrust mode.If you don't normally use the load manager, I would recommend running it and reset and distribute your weights (send to FS). It may be possible that your flight is heavier than you think? Or maybe the saved file is corrupt?Hope this helps,

This may very well be the problem. How do i go about using the load manager with the MD-11. I know how to do it with the 747, but i dont see anything in there for the MD-11NVm i've figured it out, ok i guess i'll try to play around with the payload and see what i get. Thank you Dan, i'll keep you informed with how it goes

I had the problem just yesterday, opt FL was FL365 so I attempted cruise ar 360 at it started having trouble getting above FL340, the reason was the very high cross winds (112knots) that were slowly swinging into tail winds, I switched to Maximum Climb Thrust (MCT) until it leveled off at FL360 and it was fine after that, step climbs were fine also as the winds have were better by then.Remember even if the FMS calculates the opt or maximum flight level winds can effect the climb.

winds can effect the climb.

Only in MSFS with it's horrible wx engine. The airplane never senses a wind shift that occurs naturally (except for low level shears or micro bursts or inside convective storms) because the change happens gradually. That is why you can use 1 deg/kt per 8 or 10 seconds in the registered FSUIPC, too bad it doesn't totally tame MSFS but it helps.

Ok guys still no luck.... As i draw nearer to 20,000 ft my CLB LIM goes down to about 1.18, thus not letting me climb any higher. I have a very light load, and i am using the optimal settings for a registered version of FSUIPC. Shouldnt the CLB LIM be going up? I just cant understand why my aircraft wont climb.

To be honest, I have no idea what you are focused on: CLB LIM? What is that?A screen shot might help explain things.

By the throttle display, right above the sliders, there is a readout that says CLB LIM, i'll try to get a screenshot soon

The CLB LIM thrust goes down because the air is thining, if the engine attempted to keep the same limit as it has near the ground they would be severly stressed and couldn't do it anyway. Even the MCT reduces as you gain altitude.

By the throttle display, right above the sliders, there is a readout that says CLB LIM, i'll try to get a screenshot soon

Rob you still haven't mentioned what your TAT is?

Rob you still haven't mentioned what your TAT is?

My TAT is +55 degress Celsius....and i'll be posting screenshots shortly

My TAT is +55 degress Celsius....

LOL! There's your problem...that is astronomically high. If you're using an addon like REX or ASA, then that's likely the culprit.

LOL! There's your problem...that is astronomically high. If you're using an addon like REX or ASA, then that's likely the culprit.

What is REX or ASA?... All i'm using is FSINN to run Vatsim. How do i lower the TAT?

They're weather addons, but apparently thats not it.I know there are quite a few people around here knowledgeable about online flying and FSInn, whereas I'm not. But if I'm not mistaken, doesn't FSInn have some sort of functionality to keep your FS weather in sync with the vatsim weather servers? Assuming that it does, then thats probably the source of your problem.How to fix it? I'm not familiar enough with FSInn to say. But for troubleshooting purposes, why not turn it off and see if the problem goes away. Then we'll know for sure, and one of the other guys can help you with specific fixes.

They're weather addons, but apparently thats not it.I know there are quite a few people around here knowledgeable about online flying and FSInn, whereas I'm not. But if I'm not mistaken, doesn't FSInn have some sort of functionality to keep your FS weather in sync with the vatsim weather servers? Assuming that it does, then thats probably the source of your problem.How to fix it? I'm not familiar enough with FSInn to say. But for troubleshooting purposes, why not turn it off and see if the problem goes away. Then we'll know for sure, and one of the other guys can help you with specific fixes.

Yes FSinn must be the problem. WIth it turned off my TAT is way lower, and the aircraft climbs with no problem.. Can anyone help me with the FSInn weather?