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P3D v3 Roll Resistance on ground?

lionheart

lionheart

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Hey all,

Is there such a thing as rolling resistance setting on the ground? Like lets say, you throttle off and your plane comes to a complete stop, but you want it to roll a ways. Or perhaps it takes a little more throttle then usual to taxi along. Is there a setting for this?



Many thanks,


Bill
LHC
 
As far as I know, no. There's a FSUIPC setting that can be activated to decrease ground friction, but it affects each and every plane.

If you want your aircraft to roll at idle power, you can also adjust the power tables in the .air file.
 
Heretic said:
As far as I know, no. There's a FSUIPC setting that can be activated to decrease ground friction, but it affects each and every plane.

If you want your aircraft to roll at idle power, you can also adjust the power tables in the .air file.
Click to expand...



Hi,

I support that (at least in FS9/FSX)... Is the best, and the most used, way to solve that problem. Sadly, right now I can´t show how it works, I´m not in front of my FS work station... Is a bit tricky, in order to not affect the engine performance in the other flight stages, but it is not so complex once you get some guide...
 
guinart said:
I support that (at least in FS9/FSX)... Is the best, and the most used, way to solve that problem. Sadly, right now I can´t show how it works, I´m not in front of my FS work station... Is a bit tricky, in order to not affect the engine performance in the other flight stages, but it is not so complex once you get some guide...
Click to expand...

As far as I know, the friction mod is only available for FSUIPC4 (FSX/P3Dv1-3).
 
Kinda related but not, but does anyone have the sim1dll for FS9? I never tried it and I cant find any link or download for it. Any help appreciated.
 
Isnt the OP asking about P3dv3? if so FSUIPC can do this for you with IPCwrites, have a look at FSUIPC 4

If your on P3d v4, understand how to use a Hex editor, then its easy. The friction OFFSETS for 4.1 now start at 001495c0, see my other posts
 
Airfile Table 1101, first section (Misc), last entry - [Int16_2] Braking Strength - Max. It's the rolling coefficient of friction, normally set anywhere from 0 to 16 with lower numbers decreasing the friction level.
 
Delta558 said:
Airfile Table 1101, first section (Misc), last entry - [Int16_2] Braking Strength - Max. It's the rolling coefficient of friction, normally set anywhere from 0 to 16 with lower numbers decreasing the friction level.
Click to expand...

Two points about this.
First, the OP is talking about P3DV3. The stock P3D airplanes either do not use 1101 or if they do then all entries up to the beginning of Drag are zeros. They are most likely placeholders to give the used entries their correct offset. Since ESP the air file structure has generally been like this. So I think this part of the table is unused.
Second, the values given are thought to be deceleration ft/sec^2. 16, the default, is 1/2 g and is indicative of max braking, not deceleration due to rolling resistance. Braking strength is another of the ex 1101 terms that has been in the aircraft.cfg for a very long time. So unless you have some data to share I think it has nothing to do with the subject.
Roy
EDIT.
The rolling coefficient of friction is braking friction when moving, as opposed to static coefficient which may be different and affects braking power when not moving.
 
Last edited:
Hi Roy,

First point - yes, agreed but this entry does still seem to have some effect in P3Dv3.
Second point (and I realise there's an edit after!) this is not braking strength, I know that is defined solely in the aircraft.cfg file.

Your edit - yes, rolling coefficient of friction IS braking friction when moving, which is exactly what the OP was asking about -
lionheart said:
you throttle off and your plane comes to a complete stop, but you want it to roll a ways. Or perhaps it takes a little more throttle then usual to taxi along
LHC
Click to expand...
From my reading of the original post, Bill is not asking about anything to do with braking, just the friction created between aircraft and ground. As far as I am aware, there is no other variable in either airfile or configuration file which directly addresses this, therefore I thought it worth a mention.
 
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