Burlington ‘Zephyr’ record

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The Burlington ‘Zephyr’ as seen in Aurora, Ill., on May 26, 1934. Its nonstop run may have included slow spots. CB&Q Q In 1934, the Chicago, Burlington & Quincy ran the Zephyr from Denver to Chicago nonstop. How did they do this without changing crews? Did they have crews on-board for each subdivision and change […]

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Northeast Corridor safety

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Extra tall fences (seen on the overpass in the background) often protect electrified lines from road debris. Michael S. Murray Q I have driven over the Northeast Corridor and have seen guardrails on the bridge get higher over the tracks themselves. Why is that? – Dan Wescott, Louisburg, N.C. A The primary reason higher barriers […]

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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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1990s B units

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Santa Fe management ordered 23 GP60B units in 1991 for road service. Today, these four-axle veterans still ply BNSF Railway rails, but mostly on local jobs. Bob Miller Q I was watching railroad videos of the 1990s and saw locomotives without cabs in various consists. I rarely see these units on the main lines of […]

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Locomotive gear ratios

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Electric and diesel locomotives’ top speeds are governed by gear ratios and safe operations, like this Union Pacific westbound near Franklin Grove, Ill. Brian Schmidt Q What determines the theoretical top speed of a diesel locomotive? Is it the gear ratio? What other factors enter in? – Mike Pedersen, North Berwick, Maine A The maximum […]

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Amtrak equipment usage

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Amtrak’s ‘Empire Builder’s consist will vary, but the number of trainsets for a route depends on schedules. Here it is westbound in June at Duplainville, Wis. Steve Sweeney Q For the past few years I have been trying to figure out how many trainsets are needed for a given train such as the Empire Builder. […]

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What is “HERZOG?”

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Herzog freight cars are often seen in track maintenance and repair projects, such as this ballast train. Mike Yuhas Q I have seen private freight cars on the major railroads carrying the logo and letters for “HERZOG.” Who owns them and what do they carry? – L. Frank Herman, Springfield, Ill. A You likely saw […]

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Steam whistles

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From the beginning of U.S. railroading, each railroad chose its own whistles that varied from high to low in pitch. Alex Mayes Q Have American steam engines always used a low-pitched or bass whistle, instead of a high-pitched whistle? – James Kelty, San Anselmo, Calif. A Steam whistles chosen by American railroads were almost always […]

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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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Vertical crossing signals

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A less common crossing signal warned motorists of oncoming trains by blinking “stop.” Kevin King Q As a child in the 1950s and 1960s, I saw a number of railroad grade crossings on the Wabash that were protected by a row of vertical lights on the signal mast in addition to the standard red alternating […]

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Whistles for helper engines

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On West Virginia’s Cass Scenic Railroad, engine crews with three Shay locomotives signal each other with whistles for moves and stops. Steve Sweeney Q In the days of steam, when railroaders didn’t have radios or other one-to-one communication, how did the engineer on the lead locomotive communicate to the engineers in the “helper” locomotives as […]

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Tipping on trains

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A dining car crew sets up for breakfast on the ‘Auto Train’ in 2012. Al DiCenso Q Having been a tipped employee, I know how important service and tips are to customers and employees alike. What would be an appropriate tip for average service for one guest in a roomette? What about tipping for meals […]

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