Wagon derails

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BenP		#1 Posted : 05 April 2025 14:06:28(UTC) Retweet
Joined: 04/02/2021(UTC) Posts: 477 Location: USA		I noticed that passenger wagons with a lighting slider derail less when the slider is in front than in rear. Why is that? Ben
		Digital M track layout with vintage rolling stock and accessories controlled by CS3+Rocrail; small Z scale layout. https://youtube.com/play...0kgVYbh0CeDTF-bYXoD_2-V9

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rbw993		#2 Posted : 05 April 2025 14:34:32(UTC) Retweet
Joined: 19/08/2008(UTC) Posts: 1,041		Hi Ben, Some sliders have an offset so that one end is shorter than the other. I would suspect that they track better running with the short end forward. Just a guess. Roger
		Modeling Immensee, mile/km 0 on the Gottard. SBB Era V.

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rhfil		#3 Posted : 05 April 2025 14:35:52(UTC) Retweet
Joined: 05/09/2014(UTC) Posts: 674 Location: NEW HAMPSHIRE, Somersworth		Where is it in the consist? If it is at the end then moving the slider closer to the engine results in the weight of the car ahead helps keep the truck on the rails. Easiest way to confirm that is to watch very closely what happens in both positions. The real problem is what if the car with the slider is a lit baggage car and the slider can not be moved without reversing the car.

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mike c		#4 Posted : 05 April 2025 19:09:11(UTC) Retweet
Joined: 28/11/2007(UTC) Posts: 8,216 Location: Montreal, QC		There was a tool to measure the slider height. Visually, it is possible to inspect to see whether the slider is evenly floating and whether it is slightly off axis. If there is too much downward tension, the slider can actually lift the wheels off the rails, which can cause derailment on switches or when entering curves/inclines. I found a unique solution for my older 24cm metal coaches. For the new pop-in design sliders, it may be possible to use a smaller or offset slider, but you have to ensure that the slider does not contact the axle. Regards Mike C

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