787-10 uncommanded rudder inputs on takeoff

User Support Hub Hardware & Peripherals
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1

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2 tags are required: One for platform, and one for aircraft.

Are you using Developer Mode or made changes in it?

No

Have you disabled/removed all your mods and addons? If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the Community Support section.

Yes (the video shown here has other addons enabled, but I have confirmed that this happens even with an empty Community folder)

Which aircraft are you reporting an issue about? (Please also add the proper tag for it)

787-10

Brief description of the issue:

An uncommanded rudder input occurs once the wheels are off the ground. This makes it impossible to perform a smooth takeoff as the plane doesn’t want to leave the ground, and then veers to the right.

Provide Screenshot(s)/video(s) of the issue encountered:

https://www.youtube.com/watch?v=zpMZFssEQ-4

Detailed steps to reproduce the issue encountered:

Take off. Observe the plane’s behavior and the rudder indicator on the status display FCTL page.

PC specs and/or peripheral set up if relevant:

VKB Gladiator NXT joystick, Winwing Orion2 F/A-18 throttle, VKB T-Rudder MkIV pedals. Controls mapped through SPAD.neXt.

Build Version # when you first started experiencing this issue:

1.34.16.0

:loudspeaker: For anyone who wants to contribute on this issue, Click on the button below to use this template:

Do you have the same issue if you follow the OP’s steps to reproduce it?

Provide extra information to complete the original description of the issue:

If relevant, provide additional screenshots/video:

2

Hi @PixelOfLife,

This topic has been moved to the Tech Talk category within the forums, as this is the appropriate place for your issue.

Given the PC peripherals you are using and control mapping software, I would start there and investigate whether you are having issues with dual or incorrect axis/key bindings.

Thanks,
The MSFS Team

3

Well im not saying there isnt a problem but things i noticed. Were you at TOGA? you appeared to accelerate very slowly and reaching V1 your speed was fluctuating up and down it looked as you rotated that you were on the verge of stalling, you also had auto throttle set to 177 and active while on the runway. to me and i maybe wrong you looked very close to stalling the push to the right could be the 20 knot crosswind from the left. these are just things i noticed im not saying that’s why or that there isn’t a problem

1 Like
4

You can see TOGA is engaged when the FMA reads THR REF, followed by HOLD at 80 knots. The speed is fluctuating due to the variable winds. The speed continues to trend upwards throughout the entire clip, so definitely not anywhere near a situation where they are going to stall. 177 was the correct speed to set in the MCP as this was the V2 speed.

6

As I say in my first response, I would start by checking all of the axis and key bindings, especially if you are using external software to create binds. You can also check the accessibility options in the sim to see if you have any pilot aids enabled such as auto-rudder.

7

Okay, it turns out the plane was in fact not applying down elevator, I was just having a brain ■■■■ and somehow managed to read the indicators backwards…

However, the rudder issue still persists. I tried without SPAD and with only a minimal set of controls mapped in the game’s own control settings, and the plane still makes an unexpected rudder input after takeoff. It seems to have something to do with the wind though, as this time the wind was coming from the right, and the plane put in left rudder. I think it’s trying to compensate for the wind but it feels way too aggressive, using nearly full rudder when the crosswind component was maybe 5-10 knots.

I checked and autorudder is disabled in the settings, as are all other pilot aids.

8

ok fair point i was having difficulty reading some of the figures just watched it again on a bigger screen yes i can see toga is engaged and v2 speed now

9

I tend to have the opposite and only with the 787-10 and the 787-8.On landing the aircraft will try to go left or right as soon as the front wheel touches the ground.No other aircraft does this. Drives me up the wall trying to figure this out. Sure it’s something simple but I’m missing it.LOL

10

This theme has a specific topic, see: Significant yawing after landing 787 after 1.33.7.0 update - #81 by dectenor1 try reporting this there situation. Matt from WT said that this has already been corrected and FBW no longer causes this effect when the landing gear is extended, but for me it continues to have this effect. But I noticed a few things. Some people have the 787 (asobo item in Deluxe Premium) after SU13 in different versions! Here on Xcloud the version is 1.0.10, on PC it is 1.0.106 and I saw that on Xbox it is 1.0.48. I don’t know if everyone has their own specific version, I just know that someone has the right version and isn’t having this problem and others have the wrong version.

11

Do you use Autorudder?

12

Yep. Isn’t that happening with him off? I had already tested off once and the same result. I did not test off after SU 13.

13

No only happens with it on.

14

My friend and I got this too. I had autorudder off and no other aircraft got this problem, only on 787.
After takeoff, the rudder move half way to the right by itself, making the aircraft yaw to the right. It happened to 787 every takeoff and not on other aircraft, so it’s not related to technique or controller problem.

15

On every flight, I notice, regardless of the airport of departure, weather conditions, in normal mode MSFS and in safe mode MSFS, that arbitrary movements of the rudder pedals from the extreme left to the extreme right position begin to occur only after turning on the AP button. In the event that I do not activate the autopilot or if I turn off the autopilot (the AP button is not lit), there is no arbitrary deflection of the rudder pedals from right to left.

17

Do you have the same issue if you follow the OP’s steps to reproduce it?

Yes, my rudder yaws from right to left all the way with a frequency of 5 seconds

Provide extra information to complete the original description of the issue:

When the autopilot is disabled, the rudder and rudder pedals are located exactly in the center. From the moment the autopilot is activated, the rudder pedals begin to move from the right to the left with a frequency of 5 seconds.
Also, and I combine these two actions into one problem - on the ground when taxiing, the nose wheel rudder is very sensitive to turning, which is not reduced by adjusting the sensitivity of the joystick.

If relevant, provide additional screenshots/video:

18

My guess is that rudder problems occur on all aircraft where instruments and flight controls are located in the path C:\Users\username\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\Packages\Official\OneStore in the workingtitle folders . I tested it on a 787-10 and a 747-8 and the result is the same on both planes - the rudder deflects on its own when the autopilot is engaged.
Screenshot 2023-10-31 210258
Topic update:
I did one more thing - I removed the Garmin G 000 NHI and Garmin GNS 430/530 from the MSFS and after that I flew in a circle, and everything went well for me! When the autopilot is turned on, the rudders do not move from side to side as before removing the specified addons. I’ll test it on a few flights and give feedback.
Screenshot 2023-10-31 222014
update 2 - Conducted two more tests - the problem with the rudder did not end
update 3 - Hello. I solved the problem with the spontaneously deflecting rudder by cleanly reinstalling Windows 11. Only reinstalling MSFS did not solve the problem, and updating Windows did not solve the problem either.

19

I have this problem with the WT 787 to this day…are there any solutions outside of reinstalling windows 11? That seems a bit extreme to solve the issue.

1 Like
20

I also have this exact problem with the 787 with autorudder off and my axis and control settings at default for my TCA sidestick.

Are there any solutions?

21

It’s hard to say what may cause it.
A couple things to try are to make sure no pilot assistance options are on, and ensure you have a small deadzone on your controller’s axis.

22

Adjusted the deadzone on my TCA sidestick-can takeoff OK but after a few minutes after takeoff still getting the uncommanded rudder inputs and the planes dips and is uncontrollable.

All my controller bindings are as default for the TCA sideatick.

Any solutions to try?

Only happening on PC-can fly the 787 perfectly with my Xbox Series S.