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"Slight" improvements to Attitude Hold behaviour is an understatement.

mason.zh

By mason.zh
in DCS: AH-64D

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Roosterfeet

Roosterfeet

Posted
Posted

Seems much better. Hovering with att and alt hold feels much more stable and I can even yaw the aircraft while hovering. Before I felt like the aircraft was fighting me with or without hold modes enabled. Tonight I was able trim to a hands free hover without hold modes. Never been able to do that before.

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sirrah

sirrah

Posted
Posted

Hmm nice, I suppose I should start and give ATT hold a try 😅

(I never bothered until now and just manually kept it stable)

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TZeer

TZeer

Posted
Posted

Still have som odd behaviour now and then. But it's not consistent. So hard to pin down if it's me or the HOLD mode acting up.

Normally I just get my self stable, trim everything out and engage HOLD. 8 out of 10 times it works as I would expect.

But have had a few "incidents" where my ATT HOLD mode starts inducing large over-corrections that would just increase in movement.


Before anyone tell me I need to TRIM out. I'm already trimmed out ot the point my movement so small I'm within the crosshairs of hover symbology and airspeed is 0 knot. I can almost take my hands off my stick.

But as I mentioned, need to test some more, to confirm it's not me doing something stupid 😂

I also have som slight oscillation on the yaw when flying straight, I can see the yaw SCAS moving left-right. If I hold the TRIM button the oscillation stops, release the button and the oscillation start again.

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BIGNEWY

BIGNEWY

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Posted
6 minutes ago, TZeer said:

Still have som odd behaviour now and then. But it's not consistent. So hard to pin down if it's me or the HOLD mode acting up.

Normally I just get my self stable, trim everything out and engage HOLD. 8 out of 10 times it works as I would expect.

But have had a few "incidents" where my ATT HOLD mode starts inducing large over-corrections that would just increase in movement.


Before anyone tell me I need to TRIM out. I'm already trimmed out ot the point my movement so small I'm within the crosshairs of hover symbology and airspeed is 0 knot. I can almost take my hands off my stick.

But as I mentioned, need to test some more, to confirm it's not me doing something stupid 😂

I also have som slight oscillation on the yaw when flying straight, I can see the yaw SCAS moving left-right. If I hold the TRIM button the oscillation stops, release the button and the oscillation start again.

Please make a short track replay example for us to check

thanks

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mason.zh

mason.zh

Posted
  • Author
Posted (edited)
14 hours ago, TZeer said:

I can see the yaw SCAS moving left-right. If I hold the TRIM button the oscillation stops

I can't comment on other stuff that you've mentioned without a track replay. However "hold the TRIM button the oscillation (yaw SAS I guess?) stops" is the correct behavior, since holding the force trim release button will make the aircraft back into CAS mode only, which means no SAS. Also, holding the force trim release button will command the SAS servo back to the current control input's center position. 

BradMicks had a great video explaining this:

 

Edited by mason.zh
TZeer

TZeer

Posted
Posted
1 hour ago, mason.zh said:

I can't comment on other stuff that you've mentioned without a track replay. However "hold the TRIM button the oscillation (yaw SAS I guess?) stops" is the correct behavior, since holding the force trim release button will make the aircraft back into CAS mode only, which means no SAS. Also, holding the force trim release button will command the SAS servo back to the current control input's center position. 

BradMicks had a great video explaining this:

 

 

I know 🙂 
My issue was more with the oscillation of the SCAS Yaw while NOT holding the button and flying straight. Making the heliocopter oscillating left/right.

Should not the heliocpter be able to keep me flying forward WITHOUT inducing oscillation, when I'm able to do it with TRIM pushed down?

But again, I don't know what triggers it, so hard for me to replicate it.

Also if I activate ATT hold while flying forward oscillation stops. So with ATT hold in forward flight the oscillation stops, pressing and holding the trim reset button the oscillation stops. But just flying without any hold modes engaged, trimmed out and no trim reset active it oscillates.

But I will post a seperate post with track when I have found out how to replicate it. Also need to find out if it even a bug, or just some funky flying on my side.

Scaley

Scaley

Posted
Posted
10 hours ago, TZeer said:

I know 🙂 
My issue was more with the oscillation of the SCAS Yaw while NOT holding the button and flying straight. Making the heliocopter oscillating left/right.

Should not the heliocpter be able to keep me flying forward WITHOUT inducing oscillation, when I'm able to do it with TRIM pushed down?

But again, I don't know what triggers it, so hard for me to replicate it.

Also if I activate ATT hold while flying forward oscillation stops. So with ATT hold in forward flight the oscillation stops, pressing and holding the trim reset button the oscillation stops. But just flying without any hold modes engaged, trimmed out and no trim reset active it oscillates.

But I will post a seperate post with track when I have found out how to replicate it. Also need to find out if it even a bug, or just some funky flying on my side.

Sometimes if you haven't re-centred the SAS sleeves (by holding down the FTR) you can have the yaw channel (or another, but easier with yaw) sitting right on the edge of the breakout value, so a tiny pedal movement puts you into the heading hold range, and a tiny movement takes you out. It seems to me like the aircraft can oscillate in and out of those modes. I'll try to make a video of what I mean, but if you fly in trim correctly you wont see the behaviour too often, and it's quite hard to deliberately replicate. 

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TZeer

TZeer

Posted
Posted
2 hours ago, Scaley said:

Sometimes if you haven't re-centred the SAS sleeves (by holding down the FTR) you can have the yaw channel (or another, but easier with yaw) sitting right on the edge of the breakout value, so a tiny pedal movement puts you into the heading hold range, and a tiny movement takes you out. It seems to me like the aircraft can oscillate in and out of those modes. I'll try to make a video of what I mean, but if you fly in trim correctly you wont see the behaviour too often, and it's quite hard to deliberately replicate. 

I'm using Virpil pedals that I have modified with a damper mod and no springs. So I don't need to recenter between trim. I have also the joystick overlay open in my left corner to check where my trim is relative to my actual posision.

Also, holding the trim reset to stop the oscillation, should have given it enough time to re-center the sleeves if I had'nt done it properly the first time. But as soon as I release my trim reset button, the oscillation starts again. Quite irritating, as my FPV is dancing around in the HUD.

I had it happen to me again now in a mission. But much less on my way out from the target area than on my way in 🤷‍♂️

corbu1

corbu1

Posted
Posted

I can confirm that Hover with Att hold and Alt Hold is much mor stable now. Seems to me, that Helo also gets faster in a stable hover position than in previous version.

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  • 2 weeks later...
pii

pii

Posted
Posted
On 12/26/2023 at 4:53 PM, corbu1 said:

I can confirm that Hover with Att hold and Alt Hold is much mor stable now. Seems to me, that Helo also gets faster in a stable hover position than in previous version.

The entire Flight Model is greatly improved.  

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Guest

Guest

Posted
Posted

It's so stable, the 1st time I tried it again I thought DCS had crashed 😆

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