New behavior? Pressing fire while ACS is on

Not sure if this is new, but I haven't noticed this before:

While ACS (autopilot) is on, pressing the fire button on my stick disables the "H bap" (cyrrilic is not my strong suite) light on the ACS panel, allowing me to adjust the pitch, then letting go of the fire button re-enables this "H bap" light again.

Thought this was interesting, as I didn't find that behavior in the manual...

check your button mapping

Weapon release only.

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Not sure if this is new, but I haven't noticed this before:

 

While ACS (autopilot) is on, pressing the fire button on my stick disables the "H bap" (cyrrilic is not my strong suite) light on the ACS panel, allowing me to adjust the pitch, then letting go of the fire button re-enables this "H bap" light again.

 

Thought this was interesting, as I didn't find that behavior in the manual...

Interesting. I hadn't noticed it. The Su-25T's ACS has a temporary override button. Hadn't realized it was implemented in the Su-27's system as well. You might want to assign it to a different button.

EDIT: Ah, your answer above suggests this might not be what I thought it was.

Well, this might be it after all. Just like wheel brake button relaxes the AOA limiter while airborne, the weapons release button overrides the "H bap" setting of the ACS system.

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Nice find, rrohde! That's exactly how the Su-27 stick main trigger is supposed to behave.

(H бар stands for barometric altitude) ;)

(гашетка сау)

I assume they have included the closest thing to the real deal on most of the available HOTAS sticks (and imho, that's a clever decision).

When the pilot press and hold that trigger, it temporarily disables the engaged autopilot mode/ACS (сау) mode and the pilot can modify the parameters on the fly before releasing the trigger and then re-engaging the same autopilot mode.

It's like a quick autopilot adjustment/bypass trigger.

It should be effective in any autopilot mode (including the navigation mode).

As a VKB Black Mamba owner, I bound the general autopilot mode to the primary trigger and the weapon release on the secondary trigger.

I was dreaming of that kind of function for the Su-27 as it reflects how it's supposed to be operated.

Now, it would be amazing to have a separate "autopilot bypass function" in the controls menu items :joystick:

If there's a way to modify the configuration files to tweak that behavior, please do share any advice.

Very nice !

Nice to put that into perspective, Bourrinopathe! And here I thought I was doing something wrong! :) I guess that would be a great way to modify the attitude hold ACS, wouldn't it? Good stuff.

PS: VKB is starting pre-ordering for the Mk.III Black Mamba... what do you think - should I get it? How's the stick quality? Looks a lot like Saitek to me, but I do love the Russian-style design. Oh, and how close is the Mamba's stick to the actual Su-27's layout in terms of buttons/features? Thanks.

Great find :thumbup:

[…] PS: VKB is starting pre-ordering for the Mk.III Black Mamba... what do you think - should I get it? How's the stick quality? Looks a lot like Saitek to me, but I do love the Russian-style design. Oh, and how close is the Mamba's stick to the actual Su-27's layout in terms of buttons/features? Thanks.

I replied >>> here <<< to avoid cluttering ;)

What does this mean exactly? That the autopilot will now attempt to follow the new pitch setting instead of flying straight and level?

What does this mean exactly? That the autopilot will now attempt to follow the new pitch setting instead of flying straight and level?

No, what this does is to disable the autopilot while the trigger is held down. Imagine that you're cruising along at 7,800m altitude but you want to take it up to 8,000m altitude. Rather than turning off the autopilot, changing altitude then turning it on again you can hold down the trigger to temporarily disable it, change altitude then when you release the trigger it will automatically re-engage the autopilot and maintain the new set altitude. Very useful for making small changes without having to disengage, adjust altitude, re-trim and then re-engage the autopilot.

No, what this does is to disable the autopilot while the trigger is held down. Imagine that you're cruising along at 7,800m altitude but you want to take it up to 8,000m altitude. Rather than turning off the autopilot, changing altitude then turning it on again you can hold down the trigger to temporarily disable it, change altitude then when you release the trigger it will automatically re-engage the autopilot and maintain the new set altitude. Very useful for making small changes without having to disengage, adjust altitude, re-trim and then re-engage the autopilot.

I see, thanks for the clarification!

Hey there,

I found a pretty neat configuration to simulate that function with the VKB Black Mamba/Fat Black Mamba (like the real Su-27 ;) ).

If you want more information, please check this post in the Black Mamba thread.