Since a clean break would result in dumping the air and initiating emergency braking, I would assume yes. Haven't been there, so don't know first hand.
Chuck
There are a lot of factors involved as to what might be felt in the cab of the loco.... the first variables are to define "violent" and "Jolt".
Then, why did the coupler break? Defective? Overstressed?
How much load was on the Loco when the break occurred? One might assume the loco was pulling at max power, but that might not be the case; maybe the rest of the consist was bunched and when the brakes were released it started pulling backward and the coupler was defective and broke due to the sudden jerk of the majority of the train reaching the end of the slack.
I assume the scenario is that the loco is pulling hard to get a train started or up a grade and the stress on one coupler is too much for it and it gives. The crew might feel that the cab lurches forward due to the loss of load behind it and then the cab would slow (stop?) when the brakes actually apply due to the loss of air in the main pipe.
But if the coupler were to break due to stressing somewhere back within the length of the train the crew might only know of it because of it going into emergency.
I have seen a long consist break and I assume that the brakes were not charged nor in use, and I do not believe the engineer knew he lost the last 10 or so cars. It took a utility man at the yard to call to the loco to tell him to wait for the rest of the train. It was rather odd that the cars rolled forward, re-coupled just due to their momentum and the train continued on without further human intervention (though the utility man did inspect the joint). I assume that the coupling in the yard was not complete enough so that when the train started the jolt of pulling the slack out caused the couplers to uncouple, yet imparted enough forward momentum to the cars behind the break to start rolling anyway and they eventually caught up with enough force to complete a good coupling.
Semper Vaporo
Pkgs.
Usually the violent jolt is what causes the clean break in a knuckle.
Jeff
jeffhergert Usually the violent jolt is what causes the clean break in a knuckle. Jeff
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