Cajon Pass Train Air Brake Releases Too Fast!

Discussion in 'TSW General Discussion' started by SD40Australia, Sep 6, 2022.

  1. Is there a way to set realistic times for the air brake to release?

    I thought Simugraph accurately portrayed rail physics?

    I know some time ago the system was adjusted so we wouldn't have to wait, but!

    If you want the challenge of driving a heavy train down the mountain in Cajon Pass well where is it or change it. The setting to have the air flow into the system at a realistic rate.

    It should take at least 2-3 minutes to recharge BUT it takes 15 or 20 seconds.

    If possible maybe DTG can put these settings in game, and have Trainee driver/engineer, Acting Driver/engineer and Senior Driver/Engineer. Where the last is advanced and has the most realistic settings?

    The first trainee will have easy but not realistic settings....

    Help please?
     
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  2. Is this in service mode? I noticed a lot of services I start, the train brake is released already. Its only the independent brake that's on which should only take a few seconds to release?
     
  3. After making a full service. which is a 30PSI reduction. Then to come on it blows up VERY FAST!!
     

  4. Oh I see what you mean yea.
     
  5. Suryaaji#2369

    Suryaaji#2369 Well-Known Member

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    Is the rear end of the train coupled to helper/DPU engines?
     
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  6. No, only 50 in length. Minus the front locomotives.
    Just want DTG to do the settings as I said above as it makes sense.
    If they want they could even have customised settings for driver.

    Or are these already there?
     
  7. I meant releasing to running, which will go up to 90PSI.

    Is there already a setting?

    Or can I go in to a document and adjust the numbers?
     
  8. Suryaaji#2369

    Suryaaji#2369 Well-Known Member

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    Yeah just noticed that the air reacted too instantly from the moment i move the air brake lever. It should be delayed. The good example is air brake from Sherman Hill with long & heavy trains.

    Unfortunately, not
     
  9. Nick Y

    Nick Y Well-Known Member

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    Didn't DTG alter the braking on US locos after people complained at having to wait 5 or more minutes on Sherman Hill for the brakes to fully release and get to 90psi?
     
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  10. Winzarten

    Winzarten Well-Known Member

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    They changed the initial state to be more inline with what you would experience if you hop on a train mid-run. That is the air system is already pressurized with some reduction because of applied brake. Previously the whole system was empty, and you had to pressurize from scratch... which could easily take 10+minutes for the brakes to even release.

    But even after this changes it still takes quite a while until the whole system is fully pressurized again (the EOTD has same pipe pressure as lead loco).
    Cannot comment on Canjon Pass, haven't playet it yet.
     
  11. Didn't happen for me.....
    I am a real world operator.
    And often on steep grades (Australia too) the reservoirs on cars are bigger taking even longer to charge. Releasing after a full application has exhausted should take take a minimum 3-5 minutes to fully charge (flow rate 0). Even 7-10. If the train is 100, could be longer.
     
  12. Maybe, maybe yes. I think it was changed for that reason.
     
  13. After using Horseshoe Curve I must change my analysis again.

    It took the brakes about 10 minutes to come off even with locomotives at the rear.

    This is realistic. Skyhook nailed the braking physics.

    It is a shame we can't these realistic physics in Cajon Pass because I did comment on it in another thread and I remember Matt saying something about it. But Cajon Pass releases way too fast. That is why I want to see Easy/Beginner mode, Medium semi experienced mode and Hard/Senior Engineer/Very experienced mode.

    Or does the physics depend on the rollingstock? So if I use Skyhook rollingstock in Cajon Pass then I will get the same realism?

    That may be interesting.
     
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  14. solicitr

    solicitr Well-Known Member

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    Yes. They caved to the "game" side at the expense of "simulation"
     
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  15. solicitr

    solicitr Well-Known Member

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    Unfortunately, they gave it Magic Dynamic Brakes with the force of Jupiter's gravitation.
     
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  16. stujoy

    stujoy Well-Known Member

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    And the dynamic brake was notched even though it showed a continuous percentage on the lever input range. Utter fantasy and more or less unusable.
     
  17. I tried Cajon Pass and the brakes released way too fast on the Norfolk Southern equipment. So it may be dependent on the route.

    I even applied the brakes down to 30psi, but it still released too fast. In Horseshoe curve it took 10 minutes.

    So my initial prognosis here is that it is the route that is loaded that has the physics. Even if you do free roam.
     
  18. stujoy

    stujoy Well-Known Member

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    You’re confusing a train fully charging the brakes with releasing from a normal application. It doesn’t take ten minutes to release from a normal application. If it did, the trains would not be drivable in a desired fashion. The brake behaviour is not dependant on the route.
     
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