Re: [Non-DoD Source] Re: [RealSTMFC] PRR G22 question

Dennis Storzek
 

On Tue, Jan 21, 2020 at 10:31 AM, Robert kirkham wrote:
- when they increase capacity by changing the trucks . . . doesn't that mean the car frame and body are being subjected to higher loads?
Rob,

There came a point after the first few decades of the twentieth century where underframe design was being driven by train buff and draft forces rather than the load the car was intended to carry. At this point it was possible to increase the load limit of the car by simply changing the trucks, wheels, and axles, if there was an economic reason to do so.

Dennis Storzek

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