Re: Model brake component size comparison to prototype


Randy Hees
 

One thought... While AB control valve portions are going to be about the same size...  noting that some current portions (there are three parts to a AB control valve, the pipe bracket, the service portion and the emergency portion), The pipe bracket hasn't changed... but some [portions have gotten larger... requiring longer mounting studs...    and there are lots of sizes of brake cylinders... you match them to the car's weight....  So the cylinder on a caboose is much smaller than on a 40 or 50 ton box car, with cylinders for a 70 or 100 ton car much larger...  I am not sure about reservoir size...   

In the era for this list, probably only two common sizes... one for the typical 40 or 50 ton freight car, and one for cabooses... 

Randy Hees

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