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Coming to O scale with a mind set in HO regarding how things work,leaves me with many questions.

In HO,my Atlas&Kato units would literally C-R-A-W-L through turnouts,at speeds I wouldn't even use when switching,they were so low. I used to test my diesels just to see how low they'd travel through a switch to get an idea of their true switching speed performance under actual conditions.

My question here is whether this will hold true with Atlas&MTH diesels in 3 rail? Both manufacturers have full electrical pickups on both trucks&dual flywheels so I'm thinking it'll be the same,but what I wonder about,is in 3 rail,when contact is lost in the 3rd rail in a turnout,will contact on the truck following that's still making contact with the 3rd rail,keep things moving smoothly until the front truck has time to reestablish contact? Or will there be stalling? Will the diesel have to be moving at higher than normal speed in 3 rail,to elimnate the chance of stalling?

Thank's to everyone for their input in advance.

As Always,

Alan

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This will vary with the size of the engine and switch. If the distance between the pick up rollers on the engine is greater than the distance between the powered rails on the switch you should have no problem. As long as you have one pick up roller touching a powered rail you should be fine. I think most of the problems arise with smaller engines and larger switches. Also switches vary between manufacturers as do engines and pick up rollers.

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