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    Can the track to the siding head straight ahead from a curve?

    I don't think the original question was "Are there switches with both routes curved?" but "Does the mainline ever take the curved route and the siding the straight route?"
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    Large wheels create better traction?

    Not a good description. Number of wheels is determined by axle load (how many wheels it takes to spread the locomotive's weight) and tractive effort/adhesion limits (a higher tractive effort locomotive needs more weight on drivers to not slip). The formula for steam tractive effort depends on...
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    Truck dimensions

    I'm working out something for which I need to know the dimensions of many types of truck. With 4-wheel trucks, it's simple. Find the wheelbase, assume centered kingpin. If there are asymmetrical 4-wheel trucks, I'd like to know. With 6-wheel trucks, overall wheelbase isn't enough. There's...
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    A fan of the CN SD70M-2

    I like to refer to the current generation EMDs as "democratizing" the look of the SD80/90. The SD70ACe brought that look to roads not interested in high-power single units, and then the SD70M-2 brought the look to roads holding out against AC power.
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    Returning to hobby after 29 years!

    Yes, there are wireless throttles. "Wireless" as in you can carry them around, not as in "direct control to the engine". They send signals to fixed receiver(s) in the layout to control the trains. This system is scale-independent. In any scale, track switches can be manual or powered...
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    628's and modern GE's

    Which, I guess, explains why SP only needed special "tunnel motors" from EMD. Standard GE and Alco models presumably had less trouble.
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    Perfect dieselization? An open discussion

    Not exactly "what is the ideal diesel roster"; that could be a subject for another thread. From your railfan perspective, what is the ideal way for a railroad to dieselize? To get the big question out of the way, let's ignore when dieselization takes place, in absolute terms at least. Do you... is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to - An online railroad bookstore featuring a curated selection of new and used railroad books. Railroad pictorials, railroad history, steam locomotives, passenger trains, modern railroading. Hundreds of titles available, most at discount prices! We also have a video and children's book section. - An online model railroad bookstore featuring a curated selection of new and used books. Layout design, track plans, scenery and structure building, wiring, DCC, Tinplate, Toy Trains, Price Guides and more.

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