Elvas Tower: F16 8F - Elvas Tower

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F16 8F

#21 User is offline   beresford 

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Posted 10 May 2020 - 05:58 AM

View Postdarwins, on 09 May 2020 - 11:47 AM, said:

Vacuum brakes are still under development. Some of them will not work in that version.
When you start OpenRails - select Options - then the Updater tab - then select Unstable



You're right, if only I'd realised that the way to fix the brakes was to use an unstable version. :whistling: Even when taking steam loco 4566 down Eardington Bank with a heavy train it is no longer necessary to have the regulator open all the way down. Still too much resistance though, I would expect it to be running away if I didn't have a steady brake all the way down.

#22 User is offline   darwins 

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Posted 10 May 2020 - 06:40 AM

You might want to check the resistance values of the locomotive and rolling stock.

Make a back up of the MSTS file before you edit. Make a copy of it in an OpenRails sub-folder if you still use MSTS.


Remove any MSTS friction entry such as:
 Friction (
  50N/m/s   1  -1mph  0  1
  5.1N/rad/s  1  -1rad/s  0  1
  )


Replace it with an OpenRails friction entry such as:

ORTSBearingType ( Friction )

ORTSDavis_A ( 504 )
ORTSDavis_B ( 5.3 )
ORTSDavis_C ( 1.18 )

ORTSWagonFrontalArea ( 96ft^2 ) 
 ORTSDavisDragConstant ( 0.0006 )


I have attached a friction calculator and some information should you wish to use it.

Attached File(s)



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