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juancb avatar image
juancb asked juancb answered

What are the new minforce/maxforce airplane geometry variables added in SU11 to flight_model.cfg?

While looking at the C172 and LS8 I noticed that there's a new set of parameters dealing with force-based aspects of the control surfaces. You can see it by looking at the aforementioned aircraft's flight_model.cfg files or by copying those files into an example aircraft, building it, and loading it into the aircraft editor. The comments in the Packages\Official\OneStore\fs-devmode\Edition\FileDefs\FileDefs_AircraftEditor.xml file suggest these were added for SU11.

Does anyone have any idea what these might be and how they are going to be used? I couldn't find mention of them in the documentation. I'm not sure if I missed any announcements that would demystify these.

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flightmodeldevmodedocumentationdevsSU11
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Flysimware avatar image Flysimware commented ·
Looks like these are for planes that can tow sailplanes and have different forces based on the type of pilot.
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FlyingRaccoon avatar image
FlyingRaccoon answered

Hello @juancb

Those are some prototype parameters that were not removed from the final build.
They don't have any use now and will be removed from the Aircraft Editor.

Thank you for reporting this.

Regards,
Sylvain

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juancb avatar image
juancb answered

That seems like a potentially exciting set of parameters. There has been a lot of discussion around the current input model and its limitations on the MSFS user forums.

The biggest problem is that the reduced control surfaces travel as the inverse of the dynamic pressure results in broken stall dynamics like accelerated stalls and the inability to exceed the aircraft's design limitations above maneuvering speed (Va). Of course there are also concerns around input rate damping and the impact that has on aerobatic flight.

I'm hoping this prototype is to address some of those limitations as it would unlock behavior that the underlying flight model is more than capable of simulating.

I urge you and the developers working on this prototype to seek feedback early and often from folks that have previously raised the issue.


Example thread:

https://forums.flightsimulator.com/t/all-that-is-wrong-with-the-msfs-flight-model-inertia-stalling-pitch-authority-trim-sensitivity/379936


Thanks!

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