jerky locomotives

i recently had a post of why when i doubleheaded my two identical engines except for one being DCC ready and i dont have DCC. when i put bothe locos put together they became jerky on the track.when they were seperated on the track the DCC equipped loco would would move faster and before the no DCC loco. will this happen when two non-DCC locos are doubleheaded[?][?][?]
thanks, anders

If I read you correclty, you have one DCC and non-DC loco on the track at the same time? Well, the DCC loco may be adaptable to DC current, but the DC loco will have a poor go of it with DCC current unless you control for that by moving it on address 00. Even then, it will probably sing and move slowly. So, if they are not moving at the same speed, little wonder that they jerk.

Now, if you are meaning that you are operating the locomotives on DC only, the DCC locomotive will need more current to get underway than will the DC loco, so you should expect jerking once more…if any movement at all. Do you find that you need quite a bit of dialled-in speed to get them to move at all? The DCC loco is the culprit in this case.

Does this help?

If you have two identical DC locomotives, they “should” run at the same speed when you subject them to DC current. If they are different runs with different motors or gearing, then you should not expect them to run together very well at a given current setting.

DCC decodered engines must be digitally matched using the consisting method, and is more complicated than I am prepared to describe tonight. But, if done properly, they should run very smoothly in concert with throttle changes that you give them. Of course, that would be DCC-type current using a DCC controller.

Good morning, I am running HO scale on DC. I an currently running 2 Model Power Metal F7A’s at the same time with no problem at all. They are pulling a 18 car train up a 2.5 grade almost as easy & smooth as going downhill Mike

I am running two LifeLike E6’s on DC. One goes faster than the other. I put the faster one in front, and they run fine going forward. In reverse, they would uncouple because the lead engine was pushing the second unit. I switched the MTL couplers to Unimates and it took care of that problem. But I have found that very few engines, even the same type/manufacturer, run at the same speed [on DC].