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YoYo avatar image
YoYo asked donstim commented

Flight model - serious issue (from the beginning, not solved till now) during take off and acceleration, physics on the ground

For MSFS Forum:

https://forums.flightsimulator.com/t/flight-model-serious-issue-from-the-beginning-not-solved-till-now-during-take-off-and-acceleration-physics-on-the-ground/450382

Hello,
till now this issue isnt solved .

When you start (take off) or landing with even small crosswind the plane (especially taildraggers ) started to ride from right to left. For me looks like the the rudder starts to suddenly with full force (after when the plane reaches 40 kts). Take off here is the worse take off on sim market if we compare it to others simulators like Prepar3D, FSX, DCS, IL-2 ect. It is impossible to stay perfectly straight line on the airstrip (which in real life is not a big problem with applying the rudder gradually). This is FM bug in the sim (with weather/wind on the ground or something else).

Here you can see how many take off look (with data monitoring what is very interesting): https://youtu.be/Vsmr339kx8c 6

I have real experience with flying and sorry, it does not look like this and spoils the immersion completely in MSFS. The rudder operates gradually and not suddenly like you did it, causing almost maximum deflection during take-off or landing after the wheels touch the ground like its in MSFS suddenly. What is important too tailwheel lock (if its present and working well) doesnt help at all, which is also a mistake.

Here you can find more topic about this serious issue:

http://www.sim-outhouse.com/sohforums/showthread.php/125004-What-is-it-with-MSFS-and-taildraggers

https://www.avsim.com/forums/topic/606518-does-asobo-working-on-issues-with-fm-and-taildraggers/

Pls. fix it finally :+1:. You are working on Air Race Reno DLC and it will be disaster with current physics with high powered engines of race taildraggers.

Since it still hasn’t been fixed for us, owners I opened Zendesk ticket for this issue:

Request #123237

Pls give to use improvments of this. Check how it looks for example in P3D or FSX!

Edit:
If you are the real pilot (or have any real experience) you know that rudder during take-off, it works gradually and not suddenly like its in MSFS (40kts, is a barrier), it also causes the plane to tilt in the wind direction, not to turn it. This means that in the wind you can fly completely sideways but still keep a straight line and be exactly in the center of the line. For example, it is present in P3D or DCS, here (in MSFS) its a joke, sorry. You have an example in the video and Piper Archer which is a much heavier plane. Its a serious issue of physic in MSFS on the ground with acceleration and rudder action. This is very easy to see when approaching too with the rudder deflected. AFTER touching the wheels, suddenly the plane drifts completely to the left or right side too hard. This shows that if the wheels are in use, a different physics comes into play, and there is no point in transforming it.

I am currently testing a heavier taildragger model (I am also a beta tester for flight physics and systems for few companies with over 20 years of experience in simulators) and I can see still unrelated behavior that cannot be eliminated in the module as ground physics in MSFS needs to be improved overall.

flightmodel
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FlyingRaccoon avatar image
FlyingRaccoon answered donstim commented

Hello

This AnswerHub platform is designed for third party developers.
Unless you have a precise request or question regarding flight model creation using the SDK, Zendesk is the way to go. Not having an individual answer doesn't mean your feedback has not been taken into account and copy pasting it everywhere doesn't change anything.

If you have some precise concerns about the flight model and the way it's configured using the SDK, you're welcome to do so.

This post will be deleted in the next days.

Regards,
Sylvain

2 comments
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I believe this post (https://devsupport.flightsimulator.com/idea/340/reveal-all-secret-hardcoded-friction-and-braking-c-1.html) is basically addressing the same area, but directly related to the SDK - but it has yet to receive a response. Don just updated the post with a comment that addresses changes/documentation in the last sim update.

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Although my post is about the same general area (ground friction), my post is about longitudinal friction, rather than the lateral friction issues this post is concerned with. I would still appreciate a response to my post!
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Krazycolin avatar image
Krazycolin answered

Hi Sylvain. As we are presently working on 4 different tail draggers, we are very concerned about this.... I'm hoping that you will be able to fix this issue when you release the Ju-52. We are really hoping...

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