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A340 Climb problems

Posted: Sat May 18, 2024 7:52 pm
by Maxpilot
Hello LVFR Team

Flying your A340 is just a dream. but i am having problems climbing after i reach the altitude of 5200ft.
What am i doing wrong?

Thanks for you help :)

Re: A340 Climb problems

Posted: Sun May 19, 2024 5:39 pm
by cmtevitor
Here i have the same problem, it just climb until the first restriction and stop the climb, If i climb manually for a while and return the auto climb it stops climb and reduce speed =/

any sollution for this?

Re: A340 Climb problems

Posted: Sun May 19, 2024 7:57 pm
by RicardoLVFR
Maxpilot wrote:
Sat May 18, 2024 7:52 pm
Hello LVFR Team

Flying your A340 is just a dream. but i am having problems climbing after i reach the altitude of 5200ft.
What am i doing wrong?

Thanks for you help :)
Don't understand, you only reach 5,200ft? and if so, can you click to change the altitude to higher on the FCU?

Re: A340 Climb problems

Posted: Sun May 19, 2024 7:58 pm
by RicardoLVFR
cmtevitor wrote:
Sun May 19, 2024 5:39 pm
Here i have the same problem, it just climb until the first restriction and stop the climb, If i climb manually for a while and return the auto climb it stops climb and reduce speed =/

any sollution for this?
you are doing managed climb or selected, and if so can you explain how you are doing it? can you do it like we state on our tutorial? http://www.latinvfr.org/forum/viewtopic.php?f=21&t=2531

Re: A340 Climb problems

Posted: Tue May 21, 2024 8:46 pm
by Harold38
Had the same problem. I noticed when im on my take off roll and set thrust to toga with managed climb, it would level off at 5,200 ft with altitude set to cruising. I'd then use open climb and it will climb normally but when i revert back to managed climb it would descend back to 5,200ft. It only happens when i use toga. On Man flex it would climb normally on managed climb

Re: A340 Climb problems

Posted: Wed May 22, 2024 5:47 pm
by RicardoLVFR
Hi, once you reach accel height, you need to change thrust levers to CLB, so it can manage the speed on climb, and then you can select OPEN CLIMB

it may not climb above certain speed if you just leave it in CLB mode (the autopilot) as there may be constraints on a departure SID.

So verify you are using OPEN CLIMB as a way to climb your plane

Re: A340 Climb problems

Posted: Thu May 23, 2024 1:16 am
by Harold38
1. Yes i put the throttle to CLB mode during climb. So you would recommend using open climb instead of managed climb?

Re: A340 Climb problems

Posted: Thu May 23, 2024 12:35 pm
by RicardoLVFR
Harold38 wrote:
Thu May 23, 2024 1:16 am
1. Yes i put the throttle to CLB mode during climb. So you would recommend using open climb instead of managed climb?
Managed climb is allowing the aircraft CDU manage the speed based on constraints and speeds etc

selected climb is you are putting the speed and selecting the climb rate manually.

Under managed climb you can allow it to ge OPEN CLB (which is climbing based on the computed speed) or CLB, which will climb based on the altitude constraints for example, with CLB, if there is a constraint that says it should be maximum 7,000ft at certain waypoint, it will stop climbing even if you have set a higher altitude in the FCU, and it will stop at 7,000ft and then later continue.

You may have encountered a constraint, that's why is best if you choose OPEN CLB