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  [quote user="edblysard"] [quote user="Bucyrus"] Here is a question for all you hand brake experts:  If a hand brake had been applied on a tank car prior to the runaway, would the brake wheel and rachet still indicate an applied brake if the trucks were separated from the car during the wreck? <div style="clear:both;"></div> [/quote] The ratchet may still be cranked, but no guarantee it would remain that way, and with the trucks gone from under the car, there would be no way to tell if the bakes had been applied or not, unless the wheel set showed signs of sliding a long distance. <div style="clear:both;"></div> [/quote]So that sounds like there might be positive evidence that one or more brakes were applied if the pawl is in the locked position and the chain wound up, even if the trucks are missing.  But since the pawl and windup may have been dislodged in the wreck, there is no way to find evidence that hand brakes were not set.
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