Q I’ve read that when some railroads sent their steam locomotives in for a complete overhaul, they changed the main drivers to a disc type. Why would they do this?— Alex Jamieson, Chatham, Ont. A Changing to disc-type drivers was done on a case-by-case basis. The older style spoke drivers had a tendency to break […]
Train Topic: Railroad Operations
Ask Trains from September 2009
Q How do railroads figure how much power is necessary for a train?– Richard Panarese, Mesa, Ariz.A Railroads determine power needed for a train based on the route, and the train’s weight and priority. BNSF, for instance, considers the “horsepower per ton” required based on what officials call the train’s “transportation service plan.” The transportation […]
Video: History according to Hediger 3
Having trouble viewing this video? Please visit our Video FAQ page Model Railroader Senior Editor Jim Hediger also has experience working on the real railroads. In this episode Jim talks about his job as a telegraph operator for the Wabash RR. You’ll also see some vintage photos of some places where Jim worked, including […]
Video: History according to Hediger 3
Having trouble viewing this video? Please visit our Video FAQ page Model Railroader Senior Editor Jim Hediger also has experience working on the real railroads. In this episode Jim talks about his job as a telegraph operator for the Wabash RR. You’ll also see some vintage photos of some places where Jim worked, including […]
BNSF grain shuttle
A Canadian National Railway conductor delivers a BNSF Railway grain train to New Coop in Knierim, Iowa, on March 5, 2007. The elevator gets BNSF grain shuttles by way of a haulage rights agreement over CN. […]
Railroad story of the month: February 2009
A supplement to the Classic Trains Online Look Back e-mail newsletter Outfits I have known By Michael J. McLaughlin One of the most memorable aspects of my career in railroad maintenance of way is the “outfit.” An outfit was usually a collection of old revenue cars–both passenger and freight–converted to sleeping, cooking, shower, supply, tool, […]
Ask Trains from November 2006
Q On the front of a typical diesel locomotive are six “hoses.” Please define their purpose. Further, above the coupler is what appears to be a shorting hose. What is that? – Howard Beard, New Port Richey, Fla. A What you’re seeing is two sets of three hoses that are part of a train’s air-brake […]
Ask Trains from May 2008
Q As a boy, I used to watch the magnificent Southern Pacific cab-forward steam locomotives on their way to Donner Summit in Northern California. Someone referred to them as Mallets. What’s the true definition of a Mallet? — C.W. Haffey, Bakersfield, Calif. A By definition, a Mallet (mal-LAY) is an articulated, meaning the two engine […]
CTC: Remotely directing the movement of trains
Who controls the movement of the trains after the tower is closed? The train dispatcher is the most common heir to the towerman’s duties, but not always. The type of control used depends on the nature and density of the rail traffic handled at the location. Ways to preventing trains from colliding when railroad lines […]
Defect detectors
An Amtrak train en route from Milwaukee to Chicago on Canadian Pacific’s double-track main line hurtles by a metal cabin and some trackside apparatus. Over the radio, a stilted voice intones “CP detector, milepost five seven point six. Main track: two. Total axles: one six. No defects. Temperature: five three degrees. Detector out.” A moment […]
Introducing the horn section
Leslie and Nathan may sound like a dull couple from the ‘burbs, but they’re actually the first chairs in railroading’s horn section. The diesel locomotive horn section, that is. Many of today’s train-watchers recognize a railroad by the sound of its diesels’ horns. It’s only natural since sound is a strong memory-jogging sense, second only […]
Mountain railroading terminology
Ruling Grade: The maximum meaningful grade on a line; the grade that limits train tonnage. Traditionally, a ruling grade was the grade up which the standard road locomotive assigned to that division could just stagger with a maximum-tonnage train. This grade may not have been the steepest on the division, however. There may have been […]
