Kadees and gradient changes

Kadees, even when fine tuned, can sometimes come uncoupled where there is a change of gradient. This happens even more so when the couplers are not an exact match for height, as is the case with a lot of the FCPyF’s coaches.

I think I have an idea that may solve this problem, it involves a small pieces of steel wire, cut from a paperclip, twisted into a loop at one end and attached to each coach and passenger loco above the couplers. These loops would not interfere with the manual operation* of the Kadees, so the shunt loco at Grande and freight cars can still couple to the coaches.

When the Kadees are engaged a small magnet would be placed on top of the loops to hold them together, acting as a back-up for the knuckles to prevent accidental uncoupling. At the end of each run the magnets can be removed before the Kadees are uncoupled for shunting and/or running round the train.

It’s just an idea at the moment. Like many of my ideas it may not work, but if it does it’ll save a lot of swear words during running sessions!

* Footnote. I do not use the gladhand tails on Kadees and rely on manual uncoupling using a barbeque skewer, this magnetic back up method will interfere with remote operation using track magnets and the gladhands.

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About Bob Hughes

Ex railwayman, life long railway modeller, lover of real ale and spicy food.
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