[R H Steele]

In the quote from the manual ( below ) these parameters are stated as "Native" - usually a parameter native to OR is prefixed by "ORTS" --- this section of the manual does not use this prefix and is unclear if the prefix is used for these specific parameters.
Could a developer please clear this up? Thank you.

Quote

8.6.6 Native Open Rails Braking Parameters
Open Rails has implemented additional specific braking parameters to deliver realism in braking performance
in the simulation.
Following are a list of specific OR parameters and their default values. The default values are used in
place of MSTS braking parameters; however, two MSTS parameters are used for the release state: Max-
AuxilaryChargingRate and EmergencyResChargingRate.
• wagon(brakepipevolume – Volume of car’s brake pipe in cubic feet (default .5). This is dependent on
the train length calculated from the ENG to the last car in the train. This aggregate factor is used to
approximate the effects of train length on other factors. Strictly speaking this value should depend
on the car length, but the Open Rails Development team doesn’t believe it is worth the extra complication
or CPU time that would be needed to calculate it in real time. We will let the community
customize this effect by adjusting the brake servicetimefactor instead, but the Open Rails Development
team doesn’t believe this is worth the effort by the user for the added realism.
• engine(mainreschargingrate – Rate of main reservoir pressure change in psi per second when the
compressor is on (default .4).
• engine(enginebrakereleaserate – Rate of engine brake pressure decrease in psi per second (default
12.5).
• engine(enginebrakeapplicationrate – Rate of engine brake pressure increase in psi per second
(default 12.5).
• engine(brakepipechargingrate – Rate of lead engine brake pipe pressure increase in PSI per second
(default 21).
• engine(brakeservicetimefactor – Time in seconds for lead engine brake pipe pressure to drop to
about 1/3 for service application (default 1.009).
• engine(brakeemergencytimefactor – Time in seconds for lead engine brake pipe pressure to drop
to about 1/3 in emergency (default .1).
• engine(brakepipetimefactor – Time in seconds for a difference in pipe pressure between adjacent
cars to equalize to about 1/3 (default .003).

[steamer_ctn]

Looking at the code, it appears as though they all have an "ORTS" prefix, except for brakepipevolume.

[R H Steele]

Thank you, Peter, kind of you to take the time to check the code. I should learn how to do that. Add it to the list of things I need to learn!
Thank you for the work on the web site, I've been checking out the changes in the pages.