Railway hydraulic retarders - GIF

Railway hydraulic retarders.

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Previously:

https://www.homemadetools.net/forum/...699#post193776
https://www.homemadetools.net/forum/...144#post120921
https://www.homemadetools.net/forum/...159#post165239
https://www.homemadetools.net/forum/...500#post162337
https://www.homemadetools.net/forum/...132#post168759

I wouldn't have expected that those retarder would make much difference to the speed of a train weighing several thousand tonnes.

Quote:

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Originally Posted by Bony

I wouldn't have expected that those retarder would make much difference to the speed of a train weighing several thousand tonnes.

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Probably not on a train under power, but if enough of them are mounted throughout a railway switching yard they would slow or deter roll offs from missed couplings
Attachment 43376

Although it is not intuitional , there is a smallll amount of kinetic energy displaced with each action, but it must take a lot of them to reduce speed measurably.