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wanabflyer

Jerky banking turns 777 only

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I thought because I had tried some new Inspector settings, that I had caused a problem, but when going back to the NGX, there is no problem. Not so in the 777. When I am changing heading and banking to the new heading, I kind of jerks as it is turning instead of turning smoothly. This is only in flight. In other words, my sim is nice and smooth and no stutters turns on the ground or artifacts etc. my frames are good and my GPU usage is normal. Any ideas?

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Are you by any chance banking more than 35 degrees bank?

That is Overbank protection kicking in, foghting you :-)

 

Klick on the AP disengage BAR on the MCP panel to turn envelope protection off,then you can go crazy.

Or just bank max 30 degrees like in real life.

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Are you by any chance banking more than 35 degrees bank?

That is Overbank protection kicking in, foghting you :-)

Klick on the AP disengage BAR on the MCP panel to turn envelope protection off,then you can go crazy.

Or just bank max 30 degrees like in real life.

Have checked my bank limit. Still does is at reduced bank angle settings. I normally use "auto".

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I have noticed this as well.

 

Sent from Samsung Galaxy Note 2

 

 

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The bank angle selector has no influence on manually flown turns.....you are flying manually here are you not?

 

Or is this jerking while using the AP?

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I  am also in A/P.

 

Edit: When I look a little closer, this looks like a series of mini pauses or freezes.

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I  am also in A/P.

 

Edit: When I look a little closer, this looks like a series of mini pauses or freezes.

Ditto under A/P control and under handflying (I'm not banking too fast)

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What is the view "out the window" doing? Is it stuttering/pausing?

 

Best regards,

Robin.

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What weather program are you using?  I have seen this with OPUS if the DHM is not set up correctly.

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What is the view "out the window" doing? Is it stuttering/pausing?

 

Best regards,

Robin.

some little nasty stuttering there, but I think because the as2012 download or refresh the weather (in my case in every 5 min)

What weather program are you using?  I have seen this with OPUS if the DHM is not set up correctly.

I'm using AS2012 Sp2 in DWC mode enabled.

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FSGRW. No stuttering of outside scenery. Just the plane.

 

Sent from Samsung Galaxy Note 2

 

 

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Try disabling turbulence in fsx that's what fixed it for me.  It also stopped the oscillating while climbing to cruise level.  

 

Its in the intro manual to disable but I chose to ignore that and ran into issues so the past few flight I've had it disabled and the plane is much smoother albeit no turbulence.

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Try disabling turbulence in fsx that's what fixed it for me.  It also stopped the oscillating while climbing to cruise level.  

 

Its in the intro manual to disable but I chose to ignore that and ran into issues so the past few flight I've had it disabled and the plane is much smoother albeit no turbulence.

 

"FSX" turbulence is 'interesting' in the way it works. The whole air mass of the planet basically jiggles around, and some 'things' are done to the airspeed indicator which bare little semblance to what real turbulence looks like.

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Beginning to think I should generate a ticket on this one. It only happens with the 777 and is most unrealistic.

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Without a video it is very dificult to have an idea of what you are seeing is stutters due to performance reasons, low framerare, slow memory, or that your 777 has a problem.

 

Are You using FSUIPC?

Have you tried to delete the FSUIPC.ini file (back it up somewhere cause you will loose all joytstick settings as FSUIPC will build a new empty .ini file).

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Without a video it is very dificult to have an idea of what you are seeing is stutters due to performance reasons, low framerare, slow memory, or that your 777 has a problem.

Are You using FSUIPC?

Have you tried to delete the FSUIPC.ini file (back it up somewhere cause you will loose all joytstick settings as FSUIPC will build a new empty .ini file).

I am flying at FL350, my frames are locked (internally) at 30fps and that is what I am getting. I don't experience this with at best, an equally performance demanding PMDG 737 NGX and perfectly smooth banks. I am pretty certain this is not a freeze or stutter, because on close observation the a/c actually momentarily stops moving in the direction of the bank and appears for that brief moment, to be travelling forward, so I don't think it is freezing.

 

Regards,

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I see the jerkiness when over flying some waypoints, in LNAV.

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Yep, happens to me as well. Every aircraft turns smoothly, the 777 sometimes makes little 'jumps'.

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OK, I have been doing some testing and I can confirm that this is not freezing or stutters. As I posted last time, what actually happens is, the plane momentarily stop's moving in the direction of the bank and moves directly forward, then continues in the direction of the bank repeatedly so that it ends up in a jerky turn.

 

On going over this several times, I notice that this so far appear's only to happen whilst in LNAV and following the magenta line of a flight plan in the ND. If I make a turn using HDG SEL, it is as smooth as silk. Same goes for LOC capture.

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Its like when just passing a way point,it cant quite decide which way the next one is,for a split second.

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OK, I have been doing some testing and I can confirm that this is not freezing or stutters. As I posted last time, what actually happens is, the plane momentarily stop's moving in the direction of the bank and moves directly forward, then continues in the direction of the bank repeatedly so that it ends up in a jerky turn.

 

On going over this several times, I notice that this so far appear's only to happen whilst in LNAV and following the magenta line of a flight plan in the ND. If I make a turn using HDG SEL, it is as smooth as silk. Same goes for LOC capture.

This is what I am seeing as well.

 

Sent from my SPH-L900 using Tapatalk 4

 

 

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OK, I have been doing some testing and I can confirm that this is not freezing or stutters. As I posted last time, what actually happens is, the plane momentarily stop's moving in the direction of the bank and moves directly forward, then continues in the direction of the bank repeatedly so that it ends up in a jerky turn.

On going over this several times, I notice that this so far appear's only to happen whilst in LNAV and following the magenta line of a flight plan in the ND. If I make a turn using HDG SEL, it is as smooth as silk. Same goes for LOC capture.

Ok, that is a good find and interesting.

 

Can you post the route/waypoint and conditions like weather/speed/weight where this happens?

Maybe others/I can reproduce this.

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I have been in touch with PMDG support on this and along with further testing by me, I would say that it is almost certain to be my weather engine. The reason apparently lies in the complexities of the Autopilot system of the RW 777, very accurately modelled in the PMDG T7. To an extent I have noticed a bit of this behaviour, in HDG SEL & LOC capture turns as well. This while doing more test flights (late night last night). On watching my weather engine, I was noticing some pretty aggressive wind shifts as well.

 

Since then I remembered that this reared its head around the time I upgraded my weather engine to the latest Beta version, so I rolled back to my older version. "problem all but vanished", so I will be talking to Stephen on this one.

 

Regards,

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