My interest lies in Pre War Standard gauge so I've not had experience with these couplers but I have a question out of curiosity. I assume that under normal speed the tension between the couplers keeps them from un-coupling while passing over the permanent magnet but what if you stall the train or pause over one of them for some reason . Does this lead to "accidental" un-couplings ? I'm guessing that's where the electro-magnetic version would prove superior.
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