View Full Version : Strange behavior with MCP

09-09-2010, 12:29 PM
Hi all,

i use the PMDG 737-800 without panels and with the latest PM-updates. The CDU-Type is the 737-800 V4.

I expierence a very bad altitude capture in all speed modes. The A/C goes up and down about 700 feets when it reach the final altitude. It seems to be a Balance problem, but the preflight is set correctly and the CDU-File i modified with the correct A/C Data. The problem also exists with the 737-700 and other models.

I tried and payload values without success. The A/C swings up/down for long time before it captures the altitude.

Any ideas where to search?


09-09-2010, 01:58 PM
Can I ask something stupid ?

Do you refresh your QNH (button B in FS9) when reaching final flight level ?

09-09-2010, 03:50 PM
Did you accidently turn on the beta-autopilot which is under development by PM?

It is known that it has some problems in this area.