by SouthernRailway
I see that NY-area commuter railroads' car diaphragms consist of rubber tubes such as these:
http://www.mwrail.com
Before coming to NY, I recall that diaphragms were usually metal/more complex ones, as in the second photo here:
http://www.americanlimitedmodels.com/ol ... oducts.htm
Yes, this is a totally nit-picky questions, but why the difference? I'd assume that the rubber ones are cheaper, but are they used mostly by commuter railroads since people don't walk between cars as much as on a longer-distance train, which would have a more complex diaphragm to provide more protection from the elements? Or are the rubber tubed ones the new style for all new equipment, regardless of type of passenger train?
Thanks.
http://www.mwrail.com
Before coming to NY, I recall that diaphragms were usually metal/more complex ones, as in the second photo here:
http://www.americanlimitedmodels.com/ol ... oducts.htm
Yes, this is a totally nit-picky questions, but why the difference? I'd assume that the rubber ones are cheaper, but are they used mostly by commuter railroads since people don't walk between cars as much as on a longer-distance train, which would have a more complex diaphragm to provide more protection from the elements? Or are the rubber tubed ones the new style for all new equipment, regardless of type of passenger train?
Thanks.