VNAV descent rate calculation goes wrong when doing D-TO on descent

[Georg L]

Hi,

I don't know if this is a bug or real aircraft behaviour due to its old fashioned technology but I was approaching Stockholm ESSA today to runway 19R via XILAN arrival and the Top of Descent was calculated nicely, aircraft was descending in VNAV at about 2000 FPM. Then I decided to try a direct to STAR point which reduced some miles off the original STAR. This is regular practice in real life.

Now when the direct was entered, the aircraft leveled off and the vertical path indicator on the EFIS monitor showed as if I was about 2000 ft lower than needed. Shouldn't it actually show that I'm above and increase rate of descent?

[XPlanePort]

Hi,

There are some problems with VNAV (including this one). They are currently fixing crashes and will work to tune VNAV after addressing most of the crashes (soft / hard).