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Several years ago I purchased the RMT PRR/Pa. A-A unit (I have a PA oriented layout) but was somewhat disappointed with the lack of power. I just bought from Trainz the B-Unit to this set (more than a third cheaper than what RMT sells it for). To my pleasant surprise, the B-unit is powered and now my ABA has a powered A-unit attached to a powered B unit with its own motor which in turn is attached to a dummy A-unit. In effect, there are two motors, one in the first A-unit and then the B-unit for  the ABA setup.

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JOHN F...actually you have 4 motors not 2 in the A-B-A

powered A is 2 motors

powered B is 2 motors

dummy A has horn

Make sure you use the male/female molex wire plugs. That way you will have pickup from all 3 units so there is no stalling over switch frogs or insulated tracks. Molex plugs are directional oriented so if they do not fit, check out orientation before forcing a connection.

(As per Walter)

Enjoy your BEEFs. Take a moment and read the EMD style builder's plate on each diesel!

Susie

PS: Buy another B and you will have 6 motors in an A-B-B-A. Matching PEEP PRR madison-style passenger cars are also still available at RMT.

92615 PRR 25 campgn92715 crop 25

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Last edited by Walter Matuch

Thanks for the response. I did attach the wires in question. The ABA runs great and appears to be coordinated in that both powered units work in unison. It is an interesting idea to add a second B unit. Great suggestion.

 

I have to figure out how the horn works as it doesn't respond to the "whistle" control on my ZW transformer.

 

John

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