Which trains worked the Beer Line?

An orange-and-gray end-cab diesel leads red boxcars past towering white grain elevators bearing Schlitz logos

Q: I am modeling the Milwaukee Road’s Beer Line in HO scale. Which trains worked the Beer Line, and what were the train numbers they used? I can’t find any information on the internet. They didn’t just call them “Midnight Beer Train” or “Elevator Job,” did they? — Jerry Lane A: The Beer Line is near […]

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How can I use an Arduino on a model railroad?

A small, square, blue circuit board labeled “Arduino Uno”

Q: In your Ask MR question “Is there a way to automatically slow DCC locomotives?” you mentioned Arduino, a DCC-connected programmable system. Is that like Java Model Railroad Interface (JMRI) software, and if so, how do the two compare? — Bruce Fogwell A: Hi, Bruce. Arduino isn’t software — it’s hardware. An Arduino is a tiny computer, […]

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How do I get realistic sound in N scale locomotives?

A flat red plastic box sits atop a large black subwoofer enclosure

Q: I’m considering converting my N scale diesel fleet to DCC. I have a concern about getting realistic sound in N scale locomotives. On videos of model railroads I have watched, the diesel acceleration and running sound seems to feature the high-pitched whine of the diesel generators. When I railfan real diesels around the Pittsburgh […]

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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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What is a team track?

A forklift on a concrete ramp unloads a boxcar on a model railroad

Q:  I keep seeing references to “team tracks” on track plans. What are team tracks, what are they for, and how can they be incorporated into operations? — Damien Bouchey A: The idea of the team track probably dates back to not long after the invention of the railroad. After all, a team track is […]

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Steam locomotive making clicking noises

A model steam locomotive in 3/4 profile on a white background

Q: My HO scale Broadway Limited Imports Reading Co. T-1 steam locomotive is making clicking noises. The strange popping, cracking noise is most noticeable in curves. Otherwise, the engine runs fine. Although it was bought some time ago, it is operationally new. I’ve attached a short video. Any thoughts? — Bill Franz A: It’s hard […]

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How do I calculate the grade on a double deck layout?

Two levels of a model railroad seen above each other

Q: I need to calculate the grade on a double deck layout. Though I’ve been interested in model railroading since I was a child, it’s been quite some time since I was active in the hobby. Now that I’m retired, I’m planning a layout. After much deliberation, I’ve settled on a two-level around-the-walls design. My […]

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Can I replace trucks on Walthers HO Horizon cars?

An undecorated silver modern passenger coach

Q: Do you have any suggestions on how to replace trucks on Walthers HO Horizon cars (item No. 932-6073)? — Daniel Kielty A: That part number corresponds to an HO scale Massachusetts Bay Transportation Authority commuter car. The Horizon fleet passenger cars, used by Amtrak as well as municipal transit authorities like MBTA, were built […]

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Is there a way to automatically slow DCC locomotives?

Three blue HO scale diesels pull a stack train over a high steel trestle

Q: I have a trestle bridge above a deep ravine on my HO scale layout and would like to automatically slow DCC locomotives approaching the bridge to avoid too rapid an entry. Using DCC, is there a method to provide such “auto deceleration?” — Paul Savello, Cedar City, Utah A: Hi, Paul. Such a thing […]

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How do I check the DCC momentum settings on my locomotive?

A hand holds a Digital Command Control throttle near a black-and-orange HO scale diesel on a scenicked layout

Q: In your “Ask MR” column “Speed matching DCC locomotives for better consisting”, you suggest to turn off the locomotives’ momentum, because momentum will interfere with accurately measuring the locomotives’ speed. My question is: How do I know if the ESU decoders that came with my locomotives are programed with momentum? I am using an […]

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