Dynamic braking 101

Wide-field image of an orange locomotive in a barren mountain scene.

The dynamics of dynamic braking A half-century ago, when diesel locomotives were replacing steam engines, a revolutionary breakthrough — dynamic braking — was making freight operations safer and more efficient. Dynamic braking is the method of train braking whereby the kinetic energy of a moving train is used to generate electric current at the locomotive […]

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Train orders 101

Train orders The train order, variously called the “flimsy” or the “tissue” — together with its attendant operators, train order offices, and order hoops — has been rendered obsolete by the radio, the computer, and amended work rules. With its passing in the late 1980s, so did a whole concept of railroad traffic control that […]

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Railroad reporting marks 101

New Georgia Railroad diesel locomotives on freight train in yard

Railroad reporting marks Railroad cars are identified by two, three, or four letters and by a number of up to six digits. The letters, known as reporting marks, indicate the owner of the car, while the number places it in the owner’s fleet. Reporting marks ending in X indicate ownership by a private concern as […]

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Plowing snirt in Nebraska

Snowbound diesel locomotive plowing snirt in Nebraska

  The year was 1978, and I was an assistant roadmaster for the Burlington Northern out of Lincoln, Neb. Through February, the winter weather had been mild and dry, and I’d mostly been overseeing repairs to several sets of outfit cars used to house production gang workers. On the first Tuesday of March, however, a […]

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The day the GG1 fleet called in sick

Blizzard around passenger train with electric locomotive

  I became a railfan at age three, near the end of World War II. Awaiting the return of my naval officer father, I sat in our West Philadelphia kitchen window facing one of the busiest divisions of the Pennsylvania Railroad — the four-track electrified main line to Harrisburg. The parade of wartime tonnage, plus express […]

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