Reverse Loop

All True. You just throw the DPDT for the section of track that the engine is not in.

Gene P

You can also wire in a double pole double throw relay with your switch or turnout, it will switch the polarity in the loop so fast that your reversing unit will stay engaged. I have a pair of reverse loops on my layout and as I through the switch, to exit the loop, the headlight will not even flicker.

Ray

How would you wire it with your switch?  You would still have the isolated area, right?  I'd be interested on how you wire that.  Thanks.

Gene, 

If you go to Carl Tuveson's web site,       http://www.tuveson.com/       ,  and look under hints and tips you will see the reverse loop wiring with the relay.  The relay you need is the 200 snap relay.

Ray

Azatrax sells the hardware for this and includes good documentation. The site is http://www.azatrax.com

Here's the Flyer reverse loop literature from Portlines - lots of info and options:

http://www.portlines.com/Adobe...0LOOP%20HANDBOOK.pdf

Don't forget that Gilbert produced several versions of accessories to do this.

The reverse loop setup Ray uses is simple and works well with any number of reverse loops in the layout. If you want to automate the reverse loop operation use the PSX-AR-AC auto reverse boards.

It is best to switch the block the engine occupies, not an unoccupied block as shown in the original Gilbert wiring diagrams.

I did not mention this in my reply but this reverse loop works with AC power, it will not work for DC.

Ray

http://www.tuveson.com/

Gene P posted:

American Flyer track. In a reverse loop can you wire so that you don't have to stop the train? I have wired with a DPDT switch and it works fine but you have to stop the train in the insulated section. 

I've read in some places that if you wire two DPDT switches (one in the insulated area and one on the main line) that you can run the train without stopping it. True?  

Thanks. 

TRUE.  You need two electrical switches.  One that controls the flow of the current in the reversing section and the other that controls the flow outside of it.  You must "match" current flows to enter/exit the reversing section.