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View Full Version : Vacuum brake to air brake conversion


Bill Hobbs
04-08-2008, 01:07 AM
I have been working for several days to convert a British steamer from vacuum brakes to air brakes. Using the SD40 as a guide and also making tests with the example steam loco, I have succeeded in identifying the blocks in both the Engine and Simulation files that need to be changed. Sound is not important at the moment.
I have managed to get the loco brakes working and the reservoir and compressor working. So far I have not had any luck in getting the brake cylinder HUD field to show any pressure. This is not a display error because the application of the train brakes fail to slow down the train so the TrainBrake assembly is not functional now. Whether this is a RS error or a Hobbs error I cannot tell right now. My next step will be to look at perhaps one of the German airbrake locos and see if something is being done differently there.
A side benefit is that I now have a much better understanding of how things fit together between the Engine and Simulation files and I also have figured out the syntax on most of the blocks used in those two files. That I will share soon. You cannot even make good use of the Asset Editor unless you know how things fit together and what to put in various of the fields.
Has anyone else tried this and had more luck than I?

Bill

Bill Hobbs
04-09-2008, 09:29 AM
After two additional evenings of staring at the code blocks, I can find no differences between the diesels from which I copied the code and the engine and simulation files I substituted them in save the differences between the diesel <air system> and the <steam compressor> blocks in the steam simulation.
I've got other more pressing obligations at this point, so I am temporarily abandoning the project. I will look at the new documents if I have time, but I am pretty much done for the next several weeks at this point.

Bill