Galvanic corrosion

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This coal hopper, seen in Butler, Wis., has a main body built from aluminum and a center sill made of steel. Freight-car makers use non-conductive materials to separate the metals and prevent galvanic corrosion. Steve Sweeney Q There are aluminum-body Talgos and aluminum-body coal cars, both with steel center sills. High school chemistry teaches that […]

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Low-numbered Pennsy engine

20161011

Pennsylvania class L1 Mikado No. 26, trailing an additional tender for extra water capacity, heads a train of empty coal hoppers west out of Renovo, Pa., in September 1955. Under PRR’s unorthodox numbering system, the 574-member L1 fleet ranged from No. 2 to No. 8636. Philip R. Hastings photo […]

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In the hole

  A southbound Norfolk Southern freight takes the siding at South Leesburg, Ind., on May 16, 2011. The former New York Central branch line was upgraded with Pennsylvania-style position light signals recycled from other routes during Penn Central ownership. Photo by Bob Jordan […]

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Clean cut

  Clean BNSF Railway locomotives, clean ballast, and clean freight cars, match a clean, crystalline blue sky at the lower portion of “Sullivan’s Curve” in this October 2013 shot in California’s famed Cajon Pass. Photo by Steve Sweeney […]

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Sunshine no more

  Even the Sunshine State sees the occasional rainstorm, which has caught southbound Florida East Coast train No. 101 on Jan. 12, 2015, just north of St. Augustine. Photo by Brian Schmidt […]

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Blue bearing caps

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Two blue end caps for bearings made by Amsted Rail’s Brenco Inc. appear on a freight car truck at the Union Pacific’s Butler Yard in Wisconsin. Steve Sweeney Q What is the significance of the blue paint that I see on the rotating bearing caps on freight car wheelsets? – Tito Porfiri, Olney, Md. A […]

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Homefront supply line

20160811

Railroads were the primary means of moving men and materiel within the United States during World War II. Here a freight conductor walks beside flatcars loaded with M3 Lee tanks at an unknown location. U.S. Army Signal Corps photo […]

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The big picture

  A westbound Union Pacific manifest freight works its way toward Los Angeles in October 2013 in the “Blue Cut” section of California’s famed Cajon Pass. With the lead locomotives a mile away in the distance, you gain a better perspective of magnitude of the San Gabriel Mountains and the challenges railroads overcame more than […]

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