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Reply to "MTH Restoration Big Boy Issue or not?"

@Jeff Green posted:

On the issue of it not pulling good at low speed, this is not a problem with the engine as that's how it is made to work.

Few may know, unless you pull long heavy trains, that all PS3's stall when too much load is applied at low speeds. The old PS2's were stump pullers and would keep appling more amps to the motors until the speed was reached. Because of this PS2's would throw traction tires if you ran them in lash-ups as they would fight each other some. PS3's don't do this, because they stall, and you will not see the traction tire issue on them.

So PS2's will start any length or weight of train unless they actually can spin their wheels from the weight. PS3 will not start a long heavy train no matter how many PS3 engines you have on the headend because they all will "stall".

The good about this is PS3's are great to run in the middle or rear of a train, like they do in PSR or rear helpers in real railroading, because they will not wreck the train by pushing in the slack. PS2's would wreck a long train if you ran them at the end or middle because they were not a perfect speed to each other and if the head engine had just a blip, the rear engine would push the train in past the slack.

For diesel lash-ups, putting one PS2 in the headend with other PS3's helps to start the train by pushing the PS3's past their stall point.

So depending on what you want to do can make a difference rather a PS2 or PS3 is the best engine to use.

Whaaaa?

I think you may be experiencing a certain model's issues?

Posting that PS3 boards are weaker doesn't jive with my experience. Maybe a cheaper Railking's steam boiler board or tender board is coming into your post?

I don't like your authoritative post that states some finding of yours that is not true for me. Just my opinion.

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