Sign in to follow this  
cathay747

PMDG MD11 autopilot problems

Recommended Posts

So I was flying the MD11 from Princess Juliana to Schipol and everything worked fine on the FMC. The plane also took off with no issues, and LNAV engaged. However, VNAV (prof) never did but the throttles are moving themselves and the PFD showed prof armed. Despite this, I can still control them manually. I would be grateful I someone could provide a solution. It seems that the queen is much more easier to fly lol.

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

You can arm the PROF on the ground or engage it once in the air above 400 feet.  If your PFD shows PROF armed, but is not engaging, try pressing the PROF button again.

 

You need to have at least the A/P or FD engaged to operate PROF. Normal procedure is to have the FD engaged at all times.

Share this post


Link to post
Share on other sites

thanks for your reply

Moreover, I would like to ask if I should insert my cruising altitude in the altitude selection bar??

Share this post


Link to post
Share on other sites

 

 


Moreover, I would like to ask if I should insert my cruising altitude in the altitude selection bar??
If by altitude selection bar you mean the altitude window, the answer is yes. But you can't  just dial in any altitude you like. Your cruise altitude or altitudes need to entered on page 1 of FL PLN-INIT and you need to refer to the ECON CRZ page to see what is the appropriate altitude to be currently be at. 

Share this post


Link to post
Share on other sites

Try the very helpful Tutorial that Tabs went to a lot of effort to produce. It will answer every question.

Share this post


Link to post
Share on other sites

If PROF ARMED is shown on PFD it should ARM at 400 ft. If this does not happen, on the real airplane, there could be some problem in the ground/flight shifting or some data is missing on the FMS.

But may be it s just a problem on this flight. try to reset the flight doing everything from the beginning

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this