Deleted
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Post by Deleted on Jun 6, 2019 11:15:05 GMT -5
Everybody remembers these black marks, they were typical for the steam era. But I am modelling the diesel era, 1965, when nobody spoke (yet) about pollution and the exhaust (on top of the locos) emitted black smoke (sometimes worse than the steam locos ! ). So, should I reproduce those stains too ? This topic is neither a joke nor a "Troll", I saw this mark on the picture of the concrete tunnel portal by DeBenLLC ... but there is a steam engine running out !
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Post by cwrr on Jun 6, 2019 16:24:45 GMT -5
Even today, all the portals I've seen usually have some form of diesel soot above it, especially if it's on a slight grade. Perfectly fine to grime up a portal.
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Post by Commodore on Jun 6, 2019 23:25:45 GMT -5
Yep, means an Alco was here.
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Post by markm on Jun 7, 2019 0:15:22 GMT -5
I'm not sure if there is an easy answer. It would depend on how you envision the railroad and the landscape. You'll generally have some mineral staining across the top of the portal from water running down the slope above. How much depends on how you think the rainfall would be. There might even be streaks of green algae if it's wet enough. For the exhaust stains it would depend on how busy your rail line is and as a previously mentioned, the strain the locomotive is taking. For your consideration: www.trainmaster.ch/XC-01.htmThese tunnels are on a significant grade on one of the most travelled lines. I would consider these the worst case for exhaust stains. Mark
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