Results 1 to 6 of 6

Thread: The Berkshires and independant brakes.

  1. #1
    Join Date
    Jun 2004
    Location
    North Port, Florida, USA
    Posts
    1,162

    Default The Berkshires and independant brakes.

    Having re-downloaded several times the Berk_v11.zip The darn thing has no functioning independent brakes that I can see. Set for zero throttle, neutral reverser, and 100% applied independents the engine will creep and slowly gain speed forward. With anything on the drawbar and moving forward it will not slow, even from 10 mph using independents. I have perhaps 50 steam locomotives, all work fine and all stop on a dime with a light engine using the independents except the Berks. In the RW a light steamer will quickly stop and hold even with some throttle and forward set reverser.

    Any ideas on a fix for this? I went back through most of the Berk stuff with the search engine but nothing I found about the brakes.
    Dave Kolbenschlag

  2. #2
    Join Date
    May 2010
    Location
    Worksop, UK
    Posts
    1,967

    Default

    Hi Dave,
    You are quite correct in saying that the Engine Brake doesn't work on this loco! I don't know the minute detail of the braking system as specified in the eng file, but the following works for me :

    1. Move the section in red from lower down in the eng file to between the Friction and Lights sections (near the top). This is the usual position for these parameters.
    NumberOfDamperSteps( 4 )

    BrakeEquipmentType( "Triple_valve, Auxilary_reservoir, Handbrake" )
    BrakeSystemType( "Air_single_pipe" )
    MaxBrakeForce( 180kN )


    MaxHandbrakeForce( 90kN )
    NumberOfHandbrakeLeverSteps( 100 )


    TripleValveRatio( 2.5 )
    MaxReleaseRate( 15 )
    MaxApplicationRate( 10 )
    MaxAuxilaryChargingRate( 2 )
    EmergencyResCapacity( 10 )
    EmergencyResChargingRate( 30 )
    BrakeCylinderPressureForMaxBrakeBrakeForce( 64 )

    AirBrakesAirCompressorPowerRating( 3 )
    2. Copy this from the default 380 eng file :
    Brake_Engine ( 0 1 0.0125 0
    NumNotches( 3
    Notch(0 1 EngineBrakesControllerReleaseStart )
    Notch(0.45 1 EngineBrakesControllerHoldStart )
    Notch(0.5 1 EngineBrakesControllerApplyStart )
    )
    )
    and paste it over the existing Berkshire Brake_Engine entry.
    Note that only changing the Brake_Engine entry doesn't work - the other parameters (Item 1) must also be moved.

    Cheers,
    Ged
    Last edited by slipperman; 02-19-2015 at 02:19 PM.

  3. #3
    Join Date
    Jun 2004
    Location
    North Port, Florida, USA
    Posts
    1,162

    Default Berkshire brakes

    Thanks Ged, I'll get that done todayand post my results. Steam .eng files are rather complex beasts and I appreciate the help.

    Dave
    Dave Kolbenschlag

  4. #4
    Join Date
    Jun 2004
    Location
    North Port, Florida, USA
    Posts
    1,162

    Default

    Ged,
    That was a great fix. Works like a charm now.

    Thanks
    Dave Kolbenschlag

  5. #5
    Join Date
    May 2010
    Location
    Worksop, UK
    Posts
    1,967

    Default

    Hi Dave,
    I'm pleased it worked for you
    It's not really a fix, because I couldn't figure out why the original loco brake wouldn't work. It's more of a work-around, but I'm sure someone more experienced than I am could find a solution!!

    Cheers,
    Ged

  6. #6
    Join Date
    Jun 2004
    Location
    North Port, Florida, USA
    Posts
    1,162

    Default Berkshire brakes.

    Ged,
    It works for me so let someone else work on it. Maybe the original creator of the .eng file? All the Berks on the F/L use the same engine file, repaints of course. Some nice ones available, none have any brakes. I applied your work around to all of them and working fine now.

    I have to give credut to DCRR though. He actually did the first one for me after I fooled around about half a day. I get screwed up in the ) and )) etc and where they need to be placed. John followed your instructions as I tried to do and he then sent me a corrected .eng file, using your work around.
    Dave Kolbenschlag

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •