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[quote user="oltmannd"]  That would be 24 ft/s/s deceleration, about .75 g's. About what a really hard stop in an automobile would be. About 3x what you could get for steel wheel on steel rail braking.[/quote] When looking at the damaged front of the SC44 the locomotive didn't just active friction when going down the slope. For me it looks like it digged in and activated passive earth pressure/resistance, multitudes higher than friction. Regards, Volker
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