Reverse loops

Reverse loops

Postby Surovi » Wed Nov 22, 2017 5:55 pm

Reverse loops or not?
I would like to have reverse loops but ...are they good/safe for locomtives?
Thanks!
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Re: Reverse loops

Postby AstroGoat760 » Wed Nov 22, 2017 8:01 pm

Surovi wrote:Reverse loops or not?
I would like to have reverse loops but ...are they good/safe for locomtives?
Thanks!


Personally, I avoid reverse loops wherever I can, but I would not completely rule them out.
So much as wiring is done properly with proper controls, reverse loops can indeed be safe for locomotives.
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Re: Reverse loops

Postby dileTTante » Wed Nov 22, 2017 10:36 pm

On our TTTracks layout there are three reverse loops and they work well. I believe they are operated by Frog Juicer controller - but I didn't do the wiring. This is DCC only. Frog Juicer has a web page which shows wiring. Locomotives are safe. Any faults just shut off the DCC power at the command station. The limitation is that the train can't be longer than the loop.
-Terry C
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Re: Reverse loops

Postby Surovi » Thu Nov 23, 2017 3:21 am

Thank you both!
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Re: Reverse loops

Postby dileTTante » Thu Nov 23, 2017 8:54 am

To clarify, of course a train can't be longer than the loop or it would hit itself. However, the TT Tracks layout has the loop returning to a parallel track, not the original track, as shown in one photo, so the trains can be longer than the loop physically but not electrically. Train length is still a factor. The layout was a double oval, basically, and the parallel tracks have the same polarities. Recently the ovals were opened to allow access inside the layout and this was done with the loops. The polarities of the loops have to be managed. In the photo one of the electronic units can be seen beside the hinge.

The other photo shows the standard kind of return loop. This was made by Bjoern (CN-TT) who used earlier smaller radii modules. The electronics not only control polarity but operate the turnout automatically for the outgoing train. The short distances and the time to actuate the turnout mean the trains can't be going too fast. But it's cool to watch it work.

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Re: Reverse loops

Postby Surovi » Thu Nov 23, 2017 12:04 pm

Thanks!
I want reverse loop to original track.
I don`t like parallel tracks :mrgreen:
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Re: Reverse loops

Postby Richard-B » Thu Nov 23, 2017 1:46 pm

Richard Brennan - http://www.tt-west.com
Somewhere between Shenzhen and Budapest...
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Re: Reverse loops

Postby Surovi » Thu Nov 23, 2017 5:35 pm

Thanks :thumbup:
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Re: Reverse loops

Postby Surovi » Thu Jan 18, 2018 4:09 pm

Hi!
Do I need active point for reverse loop or it can be done with something else?
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Re: Reverse loops

Postby krokodil » Thu Jan 18, 2018 5:15 pm

Surovi wrote:Hi!
Do I need active point for reverse loop or it can be done with something else?


It does not really matters. Both switches will work.
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