Pilatus PC-24 - FMS speed continuously changing

Bug Reporting Hub Aircraft & Systems
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ISSUE DESCRIPTION

Description of the issue:
Speed settings in the flight plan are continuously changing during the flight which results in the AT increasing/decreasing speed continuously.

Did you experience this issue before you joined the Beta?
I am not 100% sure

If applicable, which aircraft is experiencing this issue:
Pilatus PC-24

[PC Only] Did you remove all your community mods/add-ons? If yes, are you still experiencing the issue?
yes

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?
always

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. plan a flight
  2. use the pilatus pc-24
  3. ensure the flight plan is loaded including speed restrictions
  4. start flying, enable the AP and AT
  5. observe the behavior

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using, if relevant:
na

[PC Only] Are you using Developer Mode or have you made any changes to it?
no

[PC Only] What GPU (Graphics Card) do you use?
na

[PC Only] What other relevant PC specs can you share?
na

MEDIA

[END OF FIRST USER REPORT]

:loudspeaker: For anyone who wants to contribute on this issue, Click on the button below to use this template:

Do you have the same issue if you follow the OP’s steps to reproduce it?
•

Provide extra information to complete the original description of the issue:
•

If relevant, provide additional screenshots/video:
•

2

Do you have the same issue if you follow the OP’s steps to reproduce it?
•
Yes

Provide extra information to complete the original description of the issue:
• This also happens in the Pilatus PC-12. I’ve noticed that the PC-24 is more stable in descent than in climb, and PC-12 behaves the other way round: is very stable in climbs but in descent AT is completely unusable.

AT in FMS mode is not reliable in the PC-24, but using MAN mode climbs are stable and descents are stable until the aircraft is below FL120 more or less. After that is necessary to turn AT off.

In PC-12 climbs are very stable with AT in FMS mode. AT is unusable in descent either in FMS or MAN mode.

If relevant, provide additional screenshots/video:
•

3

Was just about to say that – even in SU1, PC-12 does this as well.