Pennsylvania Railroad Geeps on the Mountain

20161214

A set of Pennsylvania Railroad GP9s climbs the east slope of Allegheny Mountain with piggyback train TT1 in September 1956. Trains magazine Editor David P. Morgan, researching a story on PRR’s Altoona–Pittsburgh operations, rides the cab of the second unit. Philip R. Hastings photo […]

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F3s on Tennessee Pass

20161206

Rio Grande F3 diesels grind upgrade at Mitchell, Colo., a mile east of the summit of Tennessee Pass, in October 1947. Two steam helpers provide assistance on the 3-percent grade. L. O. Merrill photo […]

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East Broad Top comes back to life

20161221

In August 1960, four years after Pennsylvania’s coal-hauling, narrow-gauge East Broad Top shut down, owner Nick Kovalchik reopened part of it for tourist operations. People crowd the platform at Orbisonia, Pa., to board one of the first trips. Don Wood photo […]

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Galvanic corrosion

TRNAT0115_01

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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