consisting

My A unit runs faster than the B unit. How on earth do I match the B speed to the A speed?

I’m new at this.

Welcome!

First, some questions:

  1. What scale are we talking about?
  2. Are you using DC or DCC control of your layout?
  3. What model/brand locomotives are these?

If you are using DC, there really is not much you can do to ‘speed match’ the two locomotives. Even the same model/brand of locomotives may run different. If you are using DCC, it is possible to ‘speed match’ the two engines. I’ll look forward to your reply.

Jim

If it is DCC this is a great article on how to do it. http://www.ncmrc.org/howto/Speed_Matching_DCC.pdf. Now if you dont have a radar gun for speed, you can do time the locos over a distance or like I do, send the base loco around the layout and adjust the CV’s on the one that needs to be matched until it is close enough

Usually a matched set AB, the b unit would be the one to run just slightly faster. The headlight/ light board in the A would cause this. Are these rather new units that may need more running to break-in? Would need a bit more info as previously asked to help you further.

Jim,I speed match 2 Athearn BB GP38-2s by using the start and top volt programing on my MRC Tech 6.

No,I haven’t flipped out nor am I pulling your leg…

You set the Tech 6 DC mode to control the GP38-2s at the same speed.I also fooled around with the start and stop momentum settings.