[engmod]

joe_star, on 10 November 2021 - 03:48 AM, said:

I actually went watching some wheel slippage videos on Youtube after the fact. Its clear that sand dumping is a big no-no. Will read more into prototypical handling of wheel slippage and see how i fare in OR after this :)

I don't know what video's you have watched, but sanding increases tractive effort in most conditions.
It is used by ALL railways.

https://en.wikipedia...dhesion_railway

[joe_star]

engmod, on 11 November 2021 - 05:02 PM, said:

I don't know what video's you have watched, but sanding increases tractive effort in most conditions.
It is used by ALL railways.

https://en.wikipedia...dhesion_railway

I think you misunderstood me. I was referring to continuously sanding (i.e dumping sand) the track even when stationary (like I was doing in my video). Going through discussions gave me the impression this is not desirable, rather judicious application to initiate and sustain movement.

I have no doubt sanding itself is used everywhere to some degree

[scottb613]

joe_star, on 11 November 2021 - 04:32 PM, said:

Reporting back that the helper locomotive now is indeed under the advanced adhesion model,and shows similar characteristics to the main locomotive at starting.

Coming back to the adhesion model, I still am curious why the weather coefficient was applied to the entire C-K equation (A,B,C) when the original C-K equation only the "C" factor really changes with weather conditions. Was this based on additional research perhaps?

Hi Joe,

Hah - caught my attention - while wheel slip in realistic conditions would be more than welcome - we need some means to retard the animation of the running gear while slipping - going from 5 RPM to 100000 RPM in a millisecond and the distorted sounds that come with it - seems to ruin the effect - at least for me. I've spent a bunch of time looking at steam locomotives slipping - and - they don't slip like we see in ORTS. I'm of no help with the equations calculating slippage - unfortunately.

Regards,
Scott