Wheel Slip

[bessemer]

Is anyone else having massive wheel slip issues when running trains in ORTS? This problem is making it impossible for me to get a train underway. It's like the rail head is made of greased up ice.

[longiron]

Is anyone else having massive wheel slip issues when running trains in ORTS? This problem is making it impossible for me to get a train underway. It's like the rail head is made of greased up ice.

Thanks for the report. What route, trainset and weather are you trying to run?

The OR team is aware of a potential wheelslip calculation problem if the FPS is low (less than 15-20 FPS). I can say that in the last release version it is very important to reach 20 FPS at least. Any lag when FPS goes under 5 (even temporarily) screws up the adhesion model. This can be a locomotive model dependent issue so if you have a specific locomotive having this problem, please let us know. Anyway, in the next public release you will have an option to disable the advanced adhesion model by Antislip() parameter in the ENG file.

Please ensure that you play with throttle very gently, smoothly and carefuly. You should not apply full throttle - this is the worst you can do. If you stop the train the wheelslip resets and you can take another try.

You can watch the HUD Forces display (press F5 several times until you see Forces display). Look for the WheelSlip in % (rate of change in %/s) - if the rate of change is higher than +- 200%/s you may change the weather (Alt+P) and it should fall into the range of +-50% what is OK.

It has been fixed and vastly improved on in the latest development release.

[lindsayts]

As Longiron says the current version of OR requires a gentle hand on the throttle compared to MSTS. Another point to keep in mind is to make sure the brakes are released, if "graduated release" is checked in the options this takes ages for a long train (6 to 7 minutes for a train 200 vehicles long). It's real easy to experience wheel slip with this version if one is not carefull, MSTS in this respect is very different.

Anyway many thanks to OR again................. been some good info lately. Cannot wait for the next release.

Lindsay

[longiron]

As Longiron says the current version of OR requires a gentle hand on the throttle compared to MSTS. Another point to keep in mind is to make sure the brakes are released, if "graduated release" is checked in the options this takes ages for a long train (6 to 7 minutes for a train 200 vehicles long).
Lindsay

In most cases you can use the keyboard shortcut: SHIFT+? to immediately charge the brake line.

[lindsayts]

In most cases you can use the keyboard shortcut: SHIFT+? to immediately charge the brake line.

Yes................................But I have always treated as much as possible MSTS and OR as a true simulator and one cannot recharge the brake line imediately in the real situation.

Lindsay