reported Extreme oscillations in motion after shuttle hook-up

[Dentedend10]

Yes this can't be good for the motion platform. Makes me not want to do carrier lunches even though it is the most fun part.

Another problem I am having is anytime I get shot down, the crash telemetry carries on to the next session. That is when I sit in a new plane, the session starts with a huge kick of the motion platform, like the telemetry from the previous session's crash got carried through.

This also happens even after a DCS restart. That is I dogfight, get shot down. Restart DCS. New session, and it will still start with the kick. This is not only bad for my motion platform but also for the heart

Any idea what is causing this and if there is a fix?

Thank you

[Tom Kazansky]

Maybe a naive question, but is there no hotkey that pauses/disengages the motion of the platform?

Just a work around for the occasions that trigger those oscillations, but it would stop the game and the gear from breaking.

Couldn't this be implemented in both DCS and/or the platform's software?

[Dentedend10]

8 hours ago, Tom Kazansky said:

Maybe a naive question, but is there no hotkey that pauses/disengages the motion of the platform?

Just a work around for the occasions that trigger those oscillations, but it would stop the game and the gear from breaking.

Couldn't this be implemented in both DCS and/or the platform's software?

The motion software has a key for turning the motion off. However, that also cuts power basically to the motion rig and the rig just moves to a gravity-directed position (nose down in my case). I haven’t tried recentering after that if that works. However, being on the catapult and having this nose down attitude would break the immersion

[BrassEm]

19 hours ago, Dentedend10 said:

Another problem I am having is anytime I get shot down, the crash telemetry carries on to the next session. That is when I sit in a new plane, the session starts with a huge kick of the motion platform, like the telemetry from the previous session's crash got carried through.

This also happens even after a DCS restart. That is I dogfight, get shot down. Restart DCS. New session, and it will still start with the kick. This is not only bad for my motion platform but also for the heart

I've disable outputting motion data for about 4 seconds at the start of a mission by adding some code to the export.lua file. (Extracted from my full export.lua)

    local t = LoGetModelTime()

    if t >= 4.0 then    -- Allow 4 seconds for aircraft to settle on ground after loading in before outputting motion.

    -- output code here

    end

 

[BrassEm]

20 hours ago, Tom Kazansky said:

is there no hotkey that pauses/disengages the motion of the platform?

Just a work around for the occasions that trigger those oscillations, but it would stop the game and the gear from breaking.

Couldn't this be implemented in both DCS and/or the platform's software?

All good motion controllers should have an emergency stop.

It is a total emersion breaker to implement the stop at best. (And the 7.5g oscillation doesn't always happen every launch. And may, or may not, stop after starting.)

Unfortunately the DCS program is calculating a wildly incorrect physical moment during the cat launch sequence due to a fault in program logic. We are at the mercy of Eagle Dynamics programmers for a fix.

Edited June 16, 2024 by BrassEm
add more text

[Tom Kazansky]

20 hours ago, BrassEm said:

All good motion controllers should have an emergency stop.

It is a total emersion breaker to implement the stop at best.

I see. With this thread running for 4 years now, I wondered how difficult it could be to implement a hotkey that just leaves the platform as it is and toggles it on again.

But maybe I have no clue how the lack of movement breaks immersion. I hope I get to check out such a gear some day.

Edited June 16, 2024 by Tom Kazansky

[Bojanglez]

Am 15.6.2024 um 06:46 schrieb Dentedend10:

Yes this can't be good for the motion platform. Makes me not want to do carrier lunches even though it is the most fun part.

Another problem I am having is anytime I get shot down, the crash telemetry carries on to the next session. That is when I sit in a new plane, the session starts with a huge kick of the motion platform, like the telemetry from the previous session's crash got carried through.

This also happens even after a DCS restart. That is I dogfight, get shot down. Restart DCS. New session, and it will still start with the kick. This is not only bad for my motion platform but also for the heart

Any idea what is causing this and if there is a fix?

Thank you

I have the same on a yaw 2 pro. Lets hope for ED to fix this with the next big carrier update. Otherwise the very fancy looking plane directors on deck wont have much to direct in my case. @BIGNEWY

[BIGNEWY]

I have bumped the internal report but no news to share here, can I confirm this happens for the F/A-18C and the F-14 ? 

 

[Dentedend10]

12 hours ago, BIGNEWY said:

I have bumped the internal report but no news to share here, can I confirm this happens for the F/A-18C and the F-14 ? 

 

Thank you! With the F-14 for sure, haven’t tried F18 in while, but if I do I’ll report back

[Bojanglez]

Am 25.6.2024 um 17:10 schrieb BIGNEWY:

I have bumped the internal report but no news to share here, can I confirm this happens for the F/A-18C and the F-14 ? 

 

I can confirm for f-14, A4 and T45.

same issue with all. 
This post was originally started by @BrassEmwho I believe was testing with f-18 and had the same issue. 

[BrassEm]

4 Years and another Major Supercarrier update and still not fixed. As previously described.

    --Accelerations:
    accel = LoGetAccelerationUnits()
        accel_longitudinal    = accel.x        <<<<<<<<<<

    local surge = accel.x

 

 

Export.zip

[Bojanglez]

Am 15.7.2024 um 13:10 schrieb BrassEm:

4 Years and another Major Supercarrier update and still not fixed. As previously described.

    --Accelerations:
    accel = LoGetAccelerationUnits()
        accel_longitudinal    = accel.x        <<<<<<<<<<

    local surge = accel.x

 

 

Export.zip 4.63 kB · 2 Downloads

This really looks like @BrassEmhas layed it out as good as one could. Would love to see this stressed at ED @BIGNEWY. Motion Platforms are becoming affordable. More people will want this to work. 

[j9murphy]

For me this issue goes beyond the shuttle on the carrier.  I also get bad spikes for a short time (mainly in sway) in multiple aircraft...

• when I spawn into an aircraft on the ground (occasionally)
• when an aircraft goes from a standing still to starting motion (all the time)
• when attaching to the shuttle as described in this thread (This actually worked in the f18 just now when I tried, yay!)

The first two can be masked with filtering but then you lose the fine details in the motion like the landing thump and the "violence" of the cat shot itself.

Do others see these spikes as well when not strongly filtering?  

Maybe its time for a motion platform sub forum:)

 

 

Edited August 27, 2024 by j9murphy

[hannibal]

I get wierd shudder on A10C on sway output and the F18 F14 hook ups on heave output. Via flypt Mover spike filter I was able to reduce it to a comfortable level and filter the micro spikes

My motions are moderate. I will do a video during the week for f14 carrier launch and recovery

Edited September 15, 2024 by hannibal

[Yuma]

Yeah this is an issue in the F18 as well.

[Tea-Pig]

Can I add my voice to those to those already asking for this apparently long-standing bug to be fixed? I have the violent oscillations on all the carrier planes I have, F18, T45 and A4E. It's ok if I spawn in on the catapult but almost always shakes my tooth fillings out if go through the hook up procedure. The video posted by @Bojanglez looks pretty mild compared to what I get. It's a real shame because DCS carrier ops are otherwise superb with a motion rig.

[Bojanglez]

Am 27.10.2024 um 01:17 schrieb Tea-Pig:

Can I add my voice to those to those already asking for this apparently long-standing bug to be fixed? I have the violent oscillations on all the carrier planes I have, F18, T45 and A4E. It's ok if I spawn in on the catapult but almost always shakes my tooth fillings out if go through the hook up procedure. The video posted by @Bojanglez looks pretty mild compared to what I get. It's a real shame because DCS carrier ops are otherwise superb with a motion rig.

You are describing exactly what I experience. Thanks for weighing in!!
In the video i have my pitch range set down to 20deg from max 70deg and the power at 35%. If I dont set everything way down my rig actually jumps gears and would break…

@BIGNEWY please tell us something is in the works.

[Tea-Pig]

I have added an overall amplitude control to my rig so I can turn down the movement as I nudge towards the shuttle and then turn it back up again after the shooter starts signalling for power up. It's a workaround but finding and fiddling with the knob still spoils the experience to some degree. I'm going to look at remoting this control to the HOTAS which would help but it might need another Arduino. I think it will be worth the effort as the chances of ED fixing the bug seem rather remote.

I'd love to try a carrier launch on a Yaw. It must be quite something with that huge pitch range.

[BIGNEWY]

I have recently bumped our internal report after another user contacted me privately. It has been moved up the priority list but I can not give any estimate on a fix currently. 

thank you 

[Bojanglez]

vor 3 Stunden schrieb BIGNEWY:

I have recently bumped our internal report after another user contacted me privately. It has been moved up the priority list but I can not give any estimate on a fix currently. 

thank you 

You are a hero my friend. Thanks so much!!

[Tea-Pig]

Thanks @BIGNEWY. The gearboxes of my rig salute you and hope for an end to their torture.

[[OCG] Caveman]

G'day,

I have also had this surge issue in the F18. Unfortunatly it caused catastophic damage to my 6DOF rig....

It would also be a huge fix to have motion output to zero if the aircraft is destroyed or pilot is dead. I have had scary moments being killed by a missile, then having the rig go ballistic due to the wrecked aircraft tumbing out the sky!!

thanks team!

Edited November 15, 2024 by [OCG] Caveman

[Bojanglez]

Am 15.11.2024 um 06:25 schrieb [OCG] Caveman:

G'day,

I have also had this surge issue in the F18. Unfortunatly it caused catastophic damage to my 6DOF rig....

It would also be a huge fix to have motion output to zero if the aircraft is destroyed or pilot is dead. I have had scary moments being killed by a missile, then having the rig go ballistic due to the wrecked aircraft tumbing out the sky!!

thanks team!

 

That so sad. I built an emergency engine cutoff handle to avoid damage to my platform but restarting the platform everytime I get shot is annoying, yes.

 

I am praying the Cat Hookup oscillation is fixed with the new update. Deck crew looks so good. Thannks ED. 

[BrassEm]

On 11/15/2024 at 4:25 PM, [OCG] Caveman said:

I have also had this surge issue in the F18. Unfortunatly it caused catastophic damage to my 6DOF rig....

It would also be a huge fix to have motion output to zero if the aircraft is destroyed or pilot is dead. I have had scary moments being killed by a missile, then having the rig go ballistic due to the wrecked aircraft tumbing out the sky!!

I am very sorry to hear about the damage. I have the pause button on the throttle where my thumb usually sits so I can activate it in an instant. But that was after I was bitten as well. I have E-stops fitted as part of the primary build. I understand your concerns as a missile hit is sometimes impossible to predict.

I am not aware of what motion controller you are using but I hope that there is some spike filter feature that you could investigate? It may be possible to put some sort of spike filter into the export.lua but that would need more research. Definitely need it for the ejection sequence for sure. 

Note that the filter does not work for the intermittent continuous 7.5g high frequency oscillation commanded by broken game code. (I have spike filters on my motion controllers.)

Edited November 18, 2024 by BrassEm

[Bojanglez]

Can we confirm this issue has not been fixed with the new Supercarrier update?