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Post by fabforrest on Jan 28, 2020 3:24:48 GMT
I have two exactly the same legacy engines, but they run at slightly different speeds. If I start them next to each other, they are a yard apart after a few minutes. Will this be a problem if lashed together?
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Deleted
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Post by Deleted on Jan 28, 2020 11:53:27 GMT
Fab, The easiest way to find out is to set them up in the same consist, lashed up. Once done, manually uncouple them and leave a 2 inch space. Start them up, push speed control and they should maintain that 2 inch distance.
The more important question is why are they running at different speeds when running independently. How are you setting the speeds of each engine? Are you using the digital Miles per Hour or are you using the "Speed" button? The digital MPH is not accurate. The speed control button works better.
My Legacy engines are pretty good about maintaining the same speed, but I have heard this complaint from others. I am not a "techie" and if the problem continues, I would private message MartyE.
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Post by fabforrest on Jan 28, 2020 12:37:15 GMT
I had them lashed up, but not coupled. Using the speed button.
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Deleted
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Post by Deleted on Jan 28, 2020 13:59:40 GMT
I just did the same thing with my SD70ACe lashed up, uncoupled and the separation did occur. 1' in 20' of run. I have been running this set lashed many times with no problems.
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Post by fabforrest on Jan 28, 2020 16:40:53 GMT
Interesting, thanks. I was worried that the engines would fight each other until there was a motor overload.
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Post by JDaddy on Jan 30, 2020 0:57:56 GMT
I would check to make sure the brake shoes are not rubbing on the tires on one of the units.
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Post by Deleted on Feb 1, 2020 22:05:01 GMT
Just to confirm, you ARE using the train link function to create your MU train consist for speed experiments right? If not, it's not a true MU. The Legacy software actually does compensate for the slower or lower geared unit. I found this out when I MU'd a switcher and a Berk (they had WILDLY different gear ratios).
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Post by fabforrest on Feb 1, 2020 22:34:46 GMT
Yes. They are the same unit, so they should be geared the same. However, previous difficulties revealed some of these F units were encoded incorrectly.
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