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There is something I don't understand about a reverse loop. My understanding is the loop is made up of a switch with the track looping from the straight path of a switch back around to the divergent path of the same switch. Thus the train enters and exits the loop via the same switch. My understanding also, is that the track inside the loop is in a separate isolated block.
The problem I see is that at some point as the train is either entering or exiting the loop, the track polarity must change. And when this polarity change occurs, at some point if the loco has multiple pickups, the first power pickup will be getting, let's say, positive on one side but the next wheel or pickup will be getting positive from the other side? Won't this cause issues with a loco that has multiple pickups that are wired together?
The problem I see is that at some point as the train is either entering or exiting the loop, the track polarity must change. And when this polarity change occurs, at some point if the loco has multiple pickups, the first power pickup will be getting, let's say, positive on one side but the next wheel or pickup will be getting positive from the other side? Won't this cause issues with a loco that has multiple pickups that are wired together?