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I got this older Atlas engine and just keep staring at it. Looks very sharp and I like diesels! I have another LMX version that didn't impress me as much. Funny how colors get me.

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I ordered an Atlas/MTH engine and hope it comes in looking every bit as good. It will be her running mate.

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@clem k posted:

These two locomotives have the same gear ratio ? The same speed sensor ? The same tach stripes or does this not matter because two rail is totally different.   I ask because two rail is always talking to me.

Clem

I already converted one to PS2 years ago. The speed sensor matches the board set. If the gear ratio is different, you use a custom tape to match up the speeds with others. I don't remember an issue.

Two rail engines (that I have) do not use rubber tires on their wheels.

I already converted one to PS2 years ago. The speed sensor matches the board set. If the gear ratio is different, you use a custom tape to match up the speeds with others. I don't remember an issue.

Two rail engines (that I have) do not use rubber tires on their wheels.

I ran one of my scale-wheeled engines in a consist with a Hi-rail engine as a test. Their running speeds were already similar as most of the MTH hi-rail diesel wheels are pretty large. There was little slippage on the scale wheels, but in the final analysis, it actually burnishes the crud off the running rails.

Last edited by AGHRMatt

Here's a MTH one gauge Challenger (with rubber tires) an a USA Trains SD70MAC that I converted with a MTH PS3 board set.

The SD70MAC was set as the lead engine in a rush if I remember correctly. It still follows exactly speed matched to the Challenger. The gearing has to be different, right?

I've had good luck matching up many different brand of engines together.

Last edited by Engineer-Joe

Which leads me to a potentially embarrassing question here. With such perfect speed mating results, I gotta ask....

Is the final drive equal in all one gauge engines, no matter type or manufacturer? In otherwords, is the gearing adjusted for different wheel diameters that produces all locos types to travel the same distance per motor revolution?

Bruce

@brwebster posted:

Which leads me to a potentially embarrassing question here. With such perfect speed mating results, I gotta ask....

Is the final drive equal in all one gauge engines, no matter type or manufacturer? In otherwords, is the gearing adjusted for different wheel diameters that produces all locos types to travel the same distance per motor revolution?

Bruce

Well I'd have to say no. ( I bet they're close though )

I know that I have had to adjust the number of stripes in certain engines to get them to match up. So the gearing must be different. The flywheel diameter also comes into play here.

I have a couple of engines that won't match up. A USA Trains dockside has very low gears. So it's top speed is very low compared to others.

A Williams Challenger I own also never matched up correctly. At around 45 scale MPH, the motor spun so fast the engine sounded like it was falling apart.

That said, I've converted a ton of engines without major problems. I can run any of them with anything I own in the same consist. Just look through my videos for the different engines.

Joe Paonessa - YouTube

here's a MTH small steamer with an Atlas F series

This is a 3rd Rail that also matches up well. Here it is solo though:

Last edited by Engineer-Joe

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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