Auto-Reverser Wiring for Dogbone crossover?

[Baronjutter]

Hello!

I have an AR1 auto reverser and I totally understand how to hook it up for a reversing loop.  My challenge right now is a layout that's a fake double line main dogbone that needs a crossover at some point.  How could I use my AR1 to prevent a short here?  Would I just isolate the crossover turnouts and hook it up to that? Or would that be too short?  Or would I need to isolate the ends of the dogbone loops and have an AR1 for each?  Has anyone ever wired up something like this?

[nickelplate759]

The block controlled by the AR1 needs to be long enough to hold an entire train.

[Cajonpassfan]

That's correct. But if it's just a simple dogbone, you maybe able to get away with just the one AR by placing your gaps to insulate half the dogbone on the frog side of the crossover; three double gaps. One end of the dogbone becomes your reversing loop.
Good luck.
Otto

[C855B]

I make both loops reversing blocks due to multiple crossovers between. Gaps are up against the closest crossover to each. In my case the 24"R loops hold the longest train I expect to run.

[sschnabl]

Most of my layout is a double-track main line.  I have a temporary loop connecting the two mains as I am as far as I can go now with Phase 1 of construction.  I used an AR-1 and insulating rail joiners right after each turnout.  The loop is about 7 feet in length, so easily would hold a transition-era train.  It works like a charm.

Scott

[Baronjutter]

Thanks for all the info!