Styrautomat SA06 mode disengagement

[Goblin]

According to the SFI (POH), SA06 HÖJD mode is disengaged by selecting ATT and ATT is disengaged by selecting SPAK. Selecting SPAK also disengages both ATT and HÖJD, if active. SPAK is disengaged by the SNURK on the stick, or by pulling the circuit breaker. This also disengages ATT and HÖJD, since SPAK must be active for those two modes.

 

In DCS Viggen, you can disengage HÖJD by selecting HÖJD and selecting ATT disengages both ATT and HÖJD.

 

Has this been confirmed as a bug?

 

SNURK seems to work as described, though.

[Flappie]

Hi. I don't exactly get what you're saying (I'm a bit tired), but here's a post I made a while ago about issues with the autopilot modes activation: https://forums.eagle.ru/showpost.php?p=4010689&postcount=6

 

Maybe you can start from there to show how it's supposed to work in real life.

[Goblin]

SPAK, ATT and HÖJD modes are all cancelled by selecting the lower mode, according to the Pilots Operating Manual. But doing that in DCS also cancels the lower mode that you are selecting, and that can’t be right.

 

Example.

 

SPAK, ATT, HÖJD modes are engaged.

I want to cancel HÖJD mode and selects ATT.

This should just cancel HÖJD, but in DCS it also cancels ATT.

[Flappie]

Ah, now I see what you mean! Thanks. :)

[Goblin]

So, has this bug been reported?

[Flappie]

So, has this bug been reported?

No, it seems it hasn't been reported before. RagnarDa, can you please take a look?

[Goblin]

@IronMike

 

Has this been considered as a bug?

[Goblin]

This is still an issue. 
I just noticed that pressing HÖJD (when activated) also cancels ATT.

I don’t know if it has been logged as a bug or not.

[Flappie]

@Goblin We have this issue listed in our community-made bug list. We have sent it to Heatblur for review.

[Goblin]

Thanks, @Flappie
As long as HB is aware, they can fix it

[Goblin]

This is still an issue in 2.7.

[Goblin]

Fixed in todays update! 

And what an update..!! Well done Heatblur.

[Goblin]

I may have spoken too soon…

Now you can cancel the ATT and HÖJD by selecting the lower mode. I.e. if ATT and HÖJD is engaged, you can press ATT to cancel HÖJD, or you can press SPAK to cancel both ATT and HÖJD. This is correct behaviour.

However, you can also cancel SPAK, ATT and HÖJD by selecting the respective mode. I.e. you can cancel HÖJD by pressing HÖJD again. Same with ATT. And, you can also cancel SPAK by pressing SPAK. According to the SFI (The aircraft operating manual) SPAK can only be cancelled by pressing SNURK on the stick, or by pulling the circuit breaker.

But at least it is now possible to use the Styrautomat as intended, even if there are some extra features

Edited December 25, 2021 by Goblin

[TOViper]

Question 1: "SNURK" is the "Autopilot disconnect" button described in RC2 on page 22 ?
Question 2: Is - or should - this button be mapped to the action in the controls-setup "Autopilot quick disengage"? I guess so ...

As a Warthog user I found out the following a few minutes ago (how could I have overseen this for years ...
The grey-colored "Flaps" 3-position switch on the most left side of the throttle base can be used pretty fine for actions "Autopilot HÖJD/ATT" (forward) and action "Autopilot SPAK/ATT" (rearward) pretty fine. This eliminates some of the difficulties in mapping switches and buttons.
I am not a cockpit-mouse-clicker-type-pilot, I use more the controls ... just because otherwise they became unused

Edited July 5, 2022 by TOViper

[QuiGon]

On 7/6/2022 at 12:20 AM, TOViper said:

Question 1: "SNURK" is the "Autopilot disconnect" button described in RC2 on page 22 ?

That should be it, yes.
 

On 7/6/2022 at 12:20 AM, TOViper said:

Question 2: Is - or should - this button be mapped to the action in the controls-setup "Autopilot quick disengage"? I guess so ...

I'm sorry, I don't understand the question. Autopilot quick disengage is this very button (SNURK).


@Goblin SPAK/ATT/HÖJD being disengageable through it's own push-buttons is reported.

Edited July 11, 2022 by QuiGon

[TOViper]

Regarding the action "SAS mode SPAK flight stabilizer":
In the real aircraft, does this action turn OFF the SPAK or does it just cancel the ATT or HÖJD if they (or one of them) were (was) engaged?
In DCS this action at first activation disables any ATT or HÖJD, and at second activation it turns off SPAK.

According to Goblin's post I assume it is wrong behaviour in DCS.

Edited July 10, 2022 by TOViper

[QuiGon]

7 hours ago, TOViper said:

Regarding the action "SAS mode SPAK flight stabilizer":
In the real aircraft, does this action turn OFF the SPAK or does it just cancel the ATT or HÖJD if they (or one of them) were (was) engaged?
In DCS this action at first activation disables any ATT or HÖJD, and at second activation it turns off SPAK.

According to Goblin's post I assume it is wrong behaviour in DCS.

Yes, this seems to be wrong, as it should not be possible to disable SPAK through its own push button. The only possible way to disable SPAK should be through the SNURK button on the stick (AP disconnect) or by pulling the respective CB.