50' Box Car - Southern Pacific Impact Car 200

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Southern Pacific® coverted this 50’ box car with plexi-glass on one side and standard solid steel on the other. It became known as the ‘Impact’ car used for freight protection instruction - switchmen and trainmen oberved the effect of coupling whne speeds exceed the safe limit of 4 miles per hour or more. To demonstrate the impact, loose skids, cartons, or barrels would be placed inside the car and a ‘handling thermometer’ measures the damage, an impact speed indicator (speedometer) measures the coupling speed.