Are you running them together or separate? You might need to have more locos either way.I have a couple 4 axle n scale locos that are having a difficult time getting up a grade. Would I be better served by getting a 6 axle loco? Are all 6 axles powered or just 4? Is the additional weight of the larger loco going to make a big difference? Thanks.
Right now I have two GP40 4 axle locos running together. The previous poster suggested the longer 6 axles are heavier which would mean yes to my question, however he/she also made the point that the weight per axle is less, and if there are only 4 powered axles maybe it really wouldn't help. So still not sure if I should replace one of the GP40s with an AC6000.Are you running them together or separate? You might need to have more locos either way.
An N scale AC6000CW is 6 axle drive, and is about the largest diesel currently on the rails. I'm guessing you're talking about the BLI version, and not a brass model. The only diesel that would have more mass would be either a Gas Turbine pair or a Kato E unit.Right now I have two GP40 4 axle locos running together. The previous poster suggested the longer 6 axles are heavier which would mean yes to my question, however he/she also made the point that the weight per axle is less, and if there are only 4 powered axles maybe it really wouldn't help. So still not sure if I should replace one of the GP40s with an AC6000.
Oh, okay. I guess I could just go with two AC6000CWs. It's only money, right? Unfortunately I don't have $300 at the moment. The other thing I am finding is that my RR is really susceptible to start and stop operation. It seems that the tracks and wheels get dirty really quickly. I didn't realize there would be this much maintenance. Sometimes my train stutters even with things being clean. I was hoping that with two locos that if one hit a dirty patch the other loco would pull or push it a bit so it wouldn't be an issue. I'm finding however that one loco can't pull the train by itself so this doesn't work like I was hoping. That's the other reason I was thinking of going with two stronger locos so that maybe I could leave my training going slow in the background without it stopping while also not having to clean the tracks as often as I am. I'm curious how often other people clean their tracks.
2" of rise in 48" of length is 4.1% grade.Good thoughts. The train is 18 cars long and goes up 48" of track to a height of 2". I did have an issue with the 2 axle engine not being firmly on the track at the high point of the grade, but I lowered the top piers and it fixed the problem. It's a 2.1 % grade.
When all is said and done, all locomotives, whether prototype or model, work on a concept of tractive effort: The greater the weight of the loco bearing down on the rails, the more weight it can pull. While I am certainly not saying to not buy a new loco (heck, if you can swing it, get two! They're fun to have! ), but you might find a simple solution to your problem by simply adding weight to the locos you already have. If you lightly press your finger on top of your 4 axles and they pull just fine, the weight may be all you need.Bottom line is if you want to pull more cars , you either
(a)lighten the cars
(b) use a heavier locomotive ( either purchase or add weight)
(c) reduce the grade 2% is usually about the max (2" for every 100")
or (d) all of the above.
Most locomotive have worm reduction drives, if it stalls the wheels are basiclly locked . Not sure but there may be more to it than just loss of electrical conductivity.Thanks. It does seem if the rails and loco wheels are pristine, my two GP40 locos can pull my train up my grade. What seems to stop things are the smallest amount of accumulating dirt. If one loco loses electrical contact, then the other loco isn't powerful enough to pull the train and the stalled loco until the stalled loco regains electrical contact, so the train just stalls. It doesn't spin it's wheels (which may indicate the need for more weight), it just doesn't run. So I thought that if I had two heavier, more powerful locos, then maybe each would be able to pull the train and the other stalled loco over the dirt and resume operation without my being involved. Ideally, I'd like this train to just very slowly crawl along my layout in the background while I do other things. Instead I'm finding that it needs a lot of hands on TLC because things get dirty so quickly.
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