General Electric AC6000CW locomotives: Where are they now?

black locomotive with yellow stripes on nose

General Electric AC6000CW The modern horsepower race between builders culminated in the 1990s with both General Electric and EMD producing six-axle locomotives with 6,000-hp prime movers. Unfortunately, the concept never caught on, with only two domestic railroads, Union Pacific and CSX, purchasing General Electric’s design. In the race to get the locomotives on the road, […]

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NC&StL locomotives remembered

Diesel NC&StL locomotives with passenger train by signal and station

NC&StL locomotives were distinctive but disappeared all too soon.   The Nashville, Chattanooga & St. Louis Railway had its share of unique items and was a pioneer. Historian Dain L. Schult says the “NC,” as it was known, was the only southern road to try a Camelback and a duplex; neither type worked out. It […]

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Genesee & Wyoming’s expansion: General Electric locomotives suit up

bright orange locomotive on tracks

General Electric locomotives One year after Genesee & Wyoming’s June 2023 announcement it was buying second-hand General Electric power from Wabtec to bolster its fleet, the rollout of these locomotives on many of its properties is well underway. The comfort cab-equipped locomotives are part of a vast rearrangement of power on many Genesee & Wyoming […]

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The 4-6-2 Pacific-type steam locomotive

Steam locomotive with passenger train standing in station

Prior to the Hudsons, Mountains, and Northerns, the 4-6-2 Pacific-type was celebrated as THE passenger locomotive at the turn of the 20th century. Outperformed in later years by their bigger, faster, and stronger successors, the smaller racehorses continued to hold their own until the end of steam along North America’s railroads. Though, it can be […]

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Chicago & Eastern Illinois locomotives remembered

Black-and-white diesel Chicago & Eastern Illinois locomotives

Chicago & Eastern Illinois locomotives served the road well through many decades of operation.     C&EI was a coal-hauling railroad and, other than some early switchers, stuck with steam through World War II. Three E7s and a bunch of F3s made quick work of dieselizing the line from 1946 onward, with the last steam […]

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Amtrak GP40 diesel locomotives

Silver-and-black diesel Amtrak GP40 diesel locomotives with red, white, and blue stripes

Amtrak GP40 diesel locomotives came in two flavors: eight former GO Transit GP40TCs acquired in October 1988 and 15 straight GP40s leased between May 1991 and June 1993. The 3,000 hp GP40 is a standard bearer of freight motive power in the second half of the 20th century. Introduced by EMD in 1968, the model […]

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Canadian National tests DC-to-AC rebuild in ore service

red and black train on track with trees behind it

DC-to-AC rebuild During the middle of May, Canadian National tested its first modified DC-to-AC rebuild on an ore train in northern Minnesota. This is the first step to replacing a fleet of older General Electric locomotives that were built over three decades ago and currently handle the majority of the region’s ore. Canadian National’s Minnesota […]

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EMD NW5: a light road-switcher diesel that didn’t

Orange-and-green diesel locomotive approaching street crossing

Although some units proved long-lived, the EMD NW5 sold just 13 copies.     Although the pre-World War II EMD NW3 was not a stellar seller, after cessation of hostilities in 1945, the builder was keen on revisiting the idea in order to mine the light switcher market dominated by the Alco RS1 and Baldwin […]

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What makes a steam locomotive chuff sound?

Four diagrams of a steam locomotive’s valve gear, cylinder, drive rods, and wheels

Q: What causes a steam locomotive chuff sound? — Tom Huckaby A: Whether you call it a chuff (the railroader’s term), puff, or chugga-chugga, that distinctive sound is made by spent steam and exhaust smoke escaping through the smokestack of a steam locomotive. For a more detailed explanation of what’s going on in a steam […]

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Rock Island locomotives remembered

Maroon Rock Island locomotives on freight train

Rock Island locomotives displayed a remarkable lack of diversity in the steam era. In contrast, during the diesel era, the Rock hardly met a locomotive model it didn’t like. In the 20th century, the Rock made heavy use of the 0-6-0 (171), 2-8-0 (562), 2-8-2 (234), 4-6-0 (242), and 4-6-2 (175), types. Perhaps the best-remembered […]

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‘First Generation’ class overhauls still earning their keep

black and yellow train on tracks

First-generation locomotives First-generation locomotives: The North American locomotive industry is currently into a deep rebuild cycle to keep their rosters reliable and fresh. The high cost and complexity of new locomotives coupled with excess power on Class I rosters have prompted a wave of rebuilding older locomotives rather than purchasing new power. While more simple […]

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