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3 way turnouts

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  • Member since
    January, 2005
  • From: Winnipeg Canada
  • 1,519 posts
3 way turnouts
Posted by Blind Bruce on Saturday, July 14, 2012 10:37 AM

Where are three way turnouts generally used? I would not expect them to be on a main line so I suspect yards or multi use spurs. The reason I ask is which number to select ie 4,5, or 6?

73

Bruce in the Peg

  • Member since
    October, 2010
  • From: Chesterfield, MI
  • 161 posts
Posted by Doug from Michigan on Saturday, July 14, 2012 12:57 PM

Wow....perfect timing.  I was just thinking last night that I've got a spot to use one in my yard, for a lead to the RIP track.  Just never really looked at them before so I wasn't sure what would work there.

  • Member since
    February, 2005
  • From: Vancouver Island, BC
  • 19,748 posts
Posted by selector on Saturday, July 14, 2012 1:00 PM

I use mine in a yard throat.  It affords me simple directional assignment to one of two A/D tracks and a switching lead. 

  • Member since
    January, 2007
  • From: Eastern Shore Virginia
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Posted by gandydancer19 on Saturday, July 14, 2012 1:13 PM

 

I think that you can use a three-way turnout where ever you want to. If you need to save space, they will do that. They are just two turnouts laid really close together.

However, to be practical about it, You wouldn't use the number 4 or 5 on a mainline. Use the number 6 there.

AND, because they are two turnouts laid really close to each other, the practical places are - coming into a track congested area where trains would be slowing down anyway, industrial switching areas, and yards. Select the frog angle that makes the most sense or will fit your situation better.

Elmer.

The above is my opinion, from an active and experienced Model Railroader in N scale and HO since 1961.

(Modeling Freelance, Eastern US, HO scale, in 1962, with NCE DCC for locomotive control and a stand alone LocoNet for block detection and signals.) http://waynes-trains.com/ at home, and N scale at the Club.

  • Member since
    February, 2005
  • From: Southwest US
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Posted by tomikawaTT on Saturday, July 14, 2012 3:28 PM

One unusual use was to replace a turntable (!) in front of a three-stall `radius house' in Rapid City, SD.

After steam vanished the old three-stall roundhouse was used to store seasonal-use MOW equipment.  There used to be a wye elsewhere in town.

My own prototype occasionally used lap turnouts to shorten yard throats.  I don't recall seeing any on main/through tracks.

Chuck (Modeling Central Japan in September, 1964 - with 3-way turnouts in hidden staging)

  • Member since
    December, 2008
  • From: San Francisco Bay Area
  • 767 posts
Posted by mcfunkeymonkey on Saturday, July 14, 2012 4:48 PM

Here's an unusual 3-way turnout at the ATSF China Basin ferry slip in San Francisco:

Notice the point rails are even and stack together when thrown.
Might be difficult to model, but definitely saves space and would be a conversation piece!

On my own Mt. Coffin & Columbia River N scale layout, I built a #5 / #6ish three-way for the engine house, service, and spur to the cannery:

[Yes, I know the ground throws are huge & resemble catapults Whistling ]

Since my layout is 23"x 41", the three-way made the interior useful in ways straight turnouts in series could not.

  • Member since
    September, 2004
  • From: Dearborn Station
  • 11,963 posts
Posted by richhotrain on Sunday, July 15, 2012 5:25 AM

Bruce,

I use Walthers Shinohara #6 3-way turnouts between my coach yard and my passenger station.

I have three of these turnouts, back to back, to route trains to and from my main line tracks and the coach yard.

I would never want to use anything less than a #6 3-way turnout because of the intricacies of the track segments - - - too likely to derail on a #4.

Rich

  • Member since
    January, 2005
  • From: Winnipeg Canada
  • 1,519 posts
Posted by Blind Bruce on Sunday, July 15, 2012 9:55 AM

Rich, can you elaborate on what you mean by " three 3 ways back to back"?

73

Bruce in the Peg

  • Member since
    September, 2004
  • From: Dearborn Station
  • 11,963 posts
Posted by richhotrain on Sunday, July 15, 2012 10:48 AM

Bruce,

Maybe I should have said "end to end" instead of "back to back".

Here is a crude diagram of this setup.  I could photo it on the layout if that would help.

Rich

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