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Solder a wire connecting each closure rail to the adjacent left and right stock rail (This assumes an isolated frog.) Best practice is that each unbroken section of rail should have a feeder.? John

Not dumb, but just requires a choice. Feeders to the stock rails or just solder the stock rails to the flex track (or whatever). ....Tom wrote:

This my be a dumb question. I am putting feeders on every section of track. Can I I also put feeders on stock rails of my turnouts? Perry

Blair, ? Bill D

Bill D... you said... “In my case the fixed segments are several feet long, but not the length of my longest train; however the AR-switched segments are comfortably longer than the longest train.

I stand corrected, Wouter - sort of. In the case you outline, you are correct, Wouter - if we presume that the 1st AR was preconditioned by a previous section that is in the same phase as the short

Blair, I find this very interesting scenario. And I think I've got it right. You see, no matter what you do from fig. 7 onwards, crossing gaps and straddling or bridging, there are no shorts.

Wouter Not so, because there is no technical reason why, when the second gap is bridged, that the first AR doesn't respond at the same time as the second, which is the same as having the two ARs

Wouter, As usual, most of the detail in what you said went right over my head. But the credible explanation from “the expert” confirming Blair’s recommendation is reassuring. In my case the

Blair, What you describe is safe. No question. But it will also, usually, mean that you make a longer intermediate section than necessary. The 'bridging' you describe is indeed the tricky bit, but:

I think I have rail joiners on both of these.? I will try cutting a gap in them and see what happens.? Thanks

Bill D, Here is something to think about.? The rule that a reversing section must be longer than your longest train isn't just a good idea - it's a "rule".? There is a caveat to that rule that goes

Oh, I forgot Bil. With steel locos the answer is contingent on how the power pickup is arranged on the loco and tender. One must ensure that an AR corrective “short” occurs on the leaving section

A short section of fixed polarity track between two AR sections needs to be only as long as it takes for the leaving or entering AR controllers to recognize that a polarity correction is needed, and

BillIt gets tricky to answer this with confidence without a sketch to refer to; in addition, I'm working from my phone and don't have my groups login, so even if you post a sketch, i won't be viewing

Blair, I thought I had taken your advice about the taking into account the lengths of the loop sections, but as I considered your second message, another issue arose. Does it matter that I have

Blair, Thanks for the confirmation. And your analogy caused the light bulb to go off. I had assumed that the loco‘s body/frame meant that the front and rear wheels were electrically connected

BillDWhen incorporating sections of your loop, you must also ensure that those sections are longer than your longest train.? Otherwise the problem just moves.Think you may have done so, but just

BillDThink of any single loco as a pair of wires hovering, one over each rail, drooping to touch the rail at each point where a loco's wheels do.? In order for a short length between AR sections to

I realize that we have addressed the question of Auto-Reverse (AR) segment wiring extensively in the past ( a discussion in which I even participated).? I understand that the track of an AR-wired