Dynamic Brakes

[rdamurphy]

Basically, OR is attempting to be able to use real world values to come close in the Sim. MSTS made no such attempt, and people had to use some wildly exaggerated values in the engine files to get performance that was more reasonable. Part of it had to do with compensating for the errors in the grades on the original Marias Pass.

So using the MSTS values in OR will cause the Dynamics to be somewhat off. There has been a lot of discussion on this, as far as OR coding to correct or even duplicate MSTS errors. Most people think it would be better to correct the files rather than perpetuate errors.

Robert

[rlkimbal]

I agree. I know I have edited some .eng files myself.

Dick Kimball

Basically, OR is attempting to be able to use real world values to come close in the Sim. MSTS made no such attempt, and people had to use some wildly exaggerated values in the engine files to get performance that was more reasonable. Part of it had to do with compensating for the errors in the grades on the original Marias Pass.

So using the MSTS values in OR will cause the Dynamics to be somewhat off. There has been a lot of discussion on this, as far as OR coding to correct or even duplicate MSTS errors. Most people think it would be better to correct the files rather than perpetuate errors.

Robert

[rdamurphy]

I've actually seen MSTS models that will come to a full stop on Dynamics, without any brake application at all. This would be completely impossible in real life - unless, of course, you were using Dynamics going uphill...

Robert

[rlkimbal]

Norfolk Southern allowed engineers to stop with the dynamic brake where the terrain would keep the slack bunched. Of course you had to put on the engine brake to complete the stop. The current extended range brake operates almost to zero.

[conrail1]

Norfolk Southern allowed engineers to stop with the dynamic brake where the terrain would keep the slack bunched.

It was the same went I went through school in Cumberland on CSXT, not too long after the order for AC6000CW's started to show up.