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3-Way Wye Turnout----Where It Should Be Used?

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  • Member since
    May 2014
  • 372 posts
Posted by Big Boy Forever on Sunday, July 13, 2014 10:02 AM

superbe

Here are two examples of how I used 3 ways.

 

Bob

 

 

Those 2 autos look real.

Who makes those?

  • Member since
    February 2007
  • From: Shenandoah Valley The Home Of Patsy Cline
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Posted by superbe on Sunday, July 13, 2014 9:04 AM

Here are two examples of how I used 3 ways.

 

Bob

  • Member since
    July 2006
  • From: Central Vermont
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Posted by cowman on Saturday, July 12, 2014 10:22 PM

If the main passes through tht center of your yard, east and west bound trains use opposite sides.  Also, passenger station off one side, freight yard off the other. 

I have a couple I hope to use when I get the next layout underway.  Not just sure of the use yet.

Good luck,

Richard

 

  • Member since
    February 2008
  • From: Potomac Yard
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Posted by NittanyLion on Saturday, July 12, 2014 9:02 PM

I don't know what it is about my old hometown of Butler, Pennsylvania, but it seems to be one of those locations chock full of railroad and manages to have (or had) an example of ever single uncommon* on the prototype things.

One three way turnout: http://binged.it/1m5t94r

And another: http://binged.it/1zxnLRS

Both on opposite ends of the Buffalo & Pittsburgh locomotive shop.

 

* It even had the "ultimate" prototype minimum radius curve.  The junction between the PRR and B&LE was extremely tight and when Pullman-Standard was building the prototype for its 89' flat for Trailer Train, it used that curve as its absolute minimum.  They'd take the prototype out there, derail it, and then go back to the drawing board to tweak and modify until it worked.  Almost every outbound P-S order had to make it around that curve, so....

  • Member since
    February 2005
  • 868 posts
Posted by davidmurray on Saturday, July 12, 2014 8:05 PM

Not a common place, but I used a three way going into staging, to save space.  Its not part of the layout, so who cares.

Dave M

David Murray from Oshawa, Ontario Canada
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    October 2009
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Posted by Rock Island Jim on Saturday, July 12, 2014 5:02 PM

They don't seem to be common prototypically, but they help squeeze more railroad into our smaller spaces. This is another example of selective compression (as per your other thread on that). A three way switch takes up considerably less space allowing for you to fit in more other things.

Visit my layout!

LaSalle Street Station

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    May 2011
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Posted by Steven S on Saturday, July 12, 2014 4:54 PM

Here are several at a hump yard...

http://binged.it/1jndvqg

 

And here are a couple more...

http://binged.it/1jnd5QG

But if you scan around those areas, you'll see dozens, if not hundreds, of switches and only a handful are 3-ways.

 

Steve S

  • Member since
    September 2004
  • From: Dearborn Station
  • 24,073 posts
Posted by richhotrain on Saturday, July 12, 2014 4:48 PM

Screw the prototype.  Use them where you need them.

I have three 3-way turnouts lined up end to end.  The first and second ones let trains enter and exit the downtown passenger station from a double mainline which, in effect, circles the station.  The third one permits switchers to enter and exit the adjacent coach yard, connecting the station to the coach yard.

Rich 

Alton Junction

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  • From: Vancouver Island, BC
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Posted by selector on Saturday, July 12, 2014 4:44 PM

Wherever it makes sense to have one.  Yard throats in some cases, hump-yard downramp route splitter, off a lead to a busy three-stall backshop, maybe in a passenger terminal to spread/gather three different loading platforms...?

  • Member since
    May 2014
  • 372 posts
3-Way Wye Turnout----Where It Should Be Used?
Posted by Big Boy Forever on Saturday, July 12, 2014 4:33 PM

I bought a Shinohara 3 way turnout years ago, for a layout I never finished. Now I am gathering all my "dithers and druthers" as John Armstrong says, in the few free moments I have, to form a new track plan.

I was thinking of using it to branch out a yard, but most yards I see just ladder regular turnouts in sequence.

Where would a Prototype RR use one?  Yard?  Mainline?  Branch?  ????

 

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