Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Where to Isolate?

1794 views
52 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    October 2019
  • 182 posts
Where to Isolate?
Posted by Trainzman2435 on Tuesday, January 7, 2020 7:17 AM

Hello everyone, i am begenning the track work on my reverse loop but im not sure where to isolate it at? Can someone please recommend the isolation points and where to install the auto reverser? Many thanks!

  • Member since
    February 2002
  • From: Reading, PA
  • 27,987 posts
Posted by rrinker on Tuesday, January 7, 2020 7:45 AM

 Frankly, I think that diagonal track that createa a reverse loop serves no purpose whatsoever and could just be elminated. Pull the link to the engina facility from the right hand side of the yard, and the link to that mine or whatever siding from around where the turnout is for the top part of the diagonal - flip it arouns and use a right-hand turnout. 

                                    --Randy


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 19,008 posts
Posted by MisterBeasley on Tuesday, January 7, 2020 10:17 AM

I disagree, respectfully, of course.  I carefully designed my layout with two reverse loops, facing opposite directions so I could reverse an entire train regardless of which direction it was going, without backing up.

It takes an iron man to play with a toy iron horse. 

  • Member since
    January 2014
  • 1,127 posts
Posted by ROBERT PETRICK on Tuesday, January 7, 2020 10:29 AM

I agree with Mr B's respectful disagreement.

My layout has two reversing loops, one left-to-right and one right-to-left. Both are useful, and both were designed that way on purpose.

Robert 

LINK to SNSR Blog


  • Member since
    December 2015
  • 6,947 posts
Posted by BigDaddy on Tuesday, January 7, 2020 10:31 AM

I'm a newbie at gaps and reversing section, so I'm just throwing this out to see if it sticks or gets shot down. 

Going right to left and down the diagonal, I'd gap after the slip switch or crossing and I'd gap before the turnout above the coaling tower? at the top left.

Henry

COB Potomac & Northern

By the Chesapeake Bay

  • Member since
    July 2009
  • From: somerset, nj
  • 3,037 posts
Posted by gregc on Tuesday, January 7, 2020 10:59 AM

is that the best location for a reverse loop?

when would you use it during operation?

is the yard at the bottom intended for staging or a switching yard during operation.   If it's a yard, not staging, shouldn't the turntable be located near it to turn engines round?

greg - Philadelphia & Reading / Reading

  • Member since
    September 2004
  • From: Dearborn Station
  • 19,228 posts
Posted by richhotrain on Tuesday, January 7, 2020 11:23 AM

Is that a crossing or a double slip?

Rich

Alton Junction

  • Member since
    February 2002
  • From: Reading, PA
  • 27,987 posts
Posted by rrinker on Tuesday, January 7, 2020 12:10 PM

 Yes, butt there is only one reverse loop in this plan, so you can't easily change back to going the other way. ANd there IS a turntable in the engine facility, to turn the loco and send it back out to a train going the opposite direction.

 Plus in the words of John Armstrong, this makes the plan somewhat "insincere" in that the cutoff completely short circuits a section of the layout. From the previous plannign thread on this, the tracks are at different elevations, and the whole thign is a single track railroad, so it's kind of cheating to cut across the whole end loop and get to the yard, or get from the yard to the industry that is supposedly on the other side (and maybe at a different elevation).

                                       --Randy


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    July 2006
  • From: 4610 Metre's North of the Fortyninth on the left coast of Canada
  • 6,588 posts
Posted by BATMAN on Tuesday, January 7, 2020 1:40 PM

The ability to turn a train around is a nice option on a MRR. Doing it on the "fly" just seems a little weird to me, however, my experience is limited on such things. 

How about a balloon track around the RH to turn the train around, it is what I have done and can be prototypical.

My version.

Brent

It's not the age honey, it's the mileage.

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 7,581 posts
Posted by SeeYou190 on Tuesday, January 7, 2020 2:16 PM

I am going to agree with Randy, and say that the track plan would be better without the reversing crossover.

.

-Kevin

.

Wink Happily modeling my STRATTON & GILLETTE RAILROAD. A Class A line located in a personal fantasy world of semi-plausible nonsense on Tuesday, August 3rd, 1954.

  • Member since
    January 2009
  • 4,813 posts
Posted by RR_Mel on Tuesday, January 7, 2020 2:46 PM

I’m not into auto-reversers and don’t have a clue how they work or installed but as a DC guy I would go with a long block around the curve for maximum train length.
 
 
I like his plan, very unusual but I really like it.
 
 
Mel
 
 
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
 
 
  • Member since
    July 2006
  • From: 4610 Metre's North of the Fortyninth on the left coast of Canada
  • 6,588 posts
Posted by BATMAN on Tuesday, January 7, 2020 2:55 PM

RR_Mel
I like his plan, very unusual but I really like it.

I like it as well, it is a layout of benchwork that I wish I could incorporate in a room. I would do a couple of things a little different but those are minor and more personal preference in nature. The layout should be fun.Yes

Brent

It's not the age honey, it's the mileage.

  • Member since
    February 2005
  • From: Vancouver Island, BC
  • 22,053 posts
Posted by selector on Tuesday, January 7, 2020 4:02 PM

If you want just to change direction of movement for giggles or relief of some kind, why not do it nearest the 'neck' to the end of the middle peninsula?  Have the option to go around that curve the 'wrong way'.

  • Member since
    September 2004
  • From: Dearborn Station
  • 19,228 posts
Posted by richhotrain on Tuesday, January 7, 2020 4:21 PM

RR_Mel

I’m not into auto-reversers and don’t have a clue how they work or installed but as a DC guy I would go with a long block around the curve for maximum train length.
 
 

Mel, your suggested solution would work, but an additional pair of gaps would be required on the end of the turnout below the turntable that leads into the small two track yard. That would completely isolate the reverse loop and prevent a short. Otherwise, I like your solution because it isolates the reverse loop without involving the crossing (or double slip)
 
Rich

Alton Junction

  • Member since
    October 2019
  • 182 posts
Posted by Trainzman2435 on Tuesday, January 7, 2020 5:45 PM

Soo many good suggestions and points from all of you, i really appreciate them all. On one hand i wouldnt mind eliminating the reversing section but i just spent $60 on the Peco double slip lol. On the other hand i am all for simplicity and eliminating any chances of a short circut lol. You gentlemen that are suggesting a different route to take instead of the double slip reverse loop, it would be awesome if you could maybe do a rough sketch and show me what you are thinking, i am more of a see it kind of guy when it comes to things like this. As for when i might use it (The reverse loop), i really hadnt given it much thought. It will be only me running trains as i have no friends around here that are into model railroading so i dont see an ops session, it would mainly be more for versatility or just something different. As i said, i really appreciate all the suggestions and comments so please keep them coming. I have not laid any of the track or roadbed for the reverse section as of yet so that part of my plan is still open to editing.....Thanks again everyone!

  • Member since
    January 2009
  • 4,813 posts
Posted by RR_Mel on Tuesday, January 7, 2020 6:34 PM

Gotcha Rich.
 
 
I think the doubleslip is great, keep it.  I like the large loop full train reversing.
 
 
 
 
Mel
 
 
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
 
  • Member since
    September 2004
  • From: Dearborn Station
  • 19,228 posts
Posted by richhotrain on Tuesday, January 7, 2020 7:17 PM

Trainzman2435

On one hand i wouldnt mind eliminating the reversing section but i just spent $60 on the Peco double slip lol.

Ahh, so it is a double slip, not a crossing. 

If you want to keep that track as a reversing section, go for it. But, as others have pointed out, once you reverse direction, you are somewhat stuck with no easy way to get back to the original counter clockwise direction. To solve that problem, you could add a second reversing section on the lower left side of your track diagram by running a section of track diagonally from the bottom of the loop back up to the point where the train entered the loop.

Rich

Alton Junction

  • Member since
    January 2009
  • 4,813 posts
Posted by RR_Mel on Tuesday, January 7, 2020 7:40 PM

Simple fix
 

 
 
 
 
Mel
 
 
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
 
 
  • Member since
    September 2004
  • From: Dearborn Station
  • 19,228 posts
Posted by richhotrain on Tuesday, January 7, 2020 8:06 PM

RR_Mel

Simple fix
 

Yep, just add gaps to isolate the lower reverse loop.
 
Rich

Alton Junction

  • Member since
    October 2019
  • 182 posts
Posted by Trainzman2435 on Wednesday, January 8, 2020 1:36 PM

rrinker

 Frankly, I think that diagonal track that createa a reverse loop serves no purpose whatsoever and could just be elminated. Pull the link to the engina facility from the right hand side of the yard, and the link to that mine or whatever siding from around where the turnout is for the top part of the diagonal - flip it arouns and use a right-hand turnout. 

                                    --Randy

 

Randy, is this what you mean by removing the double slip and reverse loop and adding switches?

  • Member since
    February 2008
  • 1,428 posts
Posted by kasskaboose on Wednesday, January 8, 2020 1:50 PM

Wouldn't the location of isolation matter if DC or DCC?

One thing I like is the idea of making a train appear that it travels "beyond the layout."  You can do that my removing the reverse loop by the double-ended yard (the one without the turntable).  In doing that,  you now have two parallel tracks.

  • Member since
    October 2019
  • 182 posts
Posted by Trainzman2435 on Wednesday, January 8, 2020 2:44 PM

kasskaboose

Wouldn't the location of isolation matter if DC or DCC?

One thing I like is the idea of making a train appear that it travels "beyond the layout."  You can do that my removing the reverse loop by the double-ended yard (the one without the turntable).  In doing that,  you now have two parallel tracks.

 

Not sure what you mean exactly sir, maybe you can elaborate some more. And also, the layout is DCC. Thanks.

  • Member since
    February 2002
  • From: Reading, PA
  • 27,987 posts
Posted by rrinker on Wednesday, January 8, 2020 3:04 PM

 THat looks like the same plan, nothing different from the one at the top of the page.

                                 --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    October 2019
  • 182 posts
Posted by Trainzman2435 on Wednesday, January 8, 2020 3:10 PM

rrinker

 THat looks like the same plan, nothing different from the one at the top of the page.

                                 --Randy

 

 

Randy, yes it is different. There is no double slip switch and i replaced it with regular #6 turnouts.

  • Member since
    February 2002
  • From: Reading, PA
  • 27,987 posts
Posted by rrinker on Wednesday, January 8, 2020 3:19 PM

 No, that's not what I meant. WHat I meant was remove ALL of that track. Come off the other end of the yard to go over to the turntable area. ANd JUST to the turntable area. Heck, there's enough toom ro add another track to the yard as well. ANd then for the industry on the right, use a right-hand turnout off the passing siding a the top. Those tro tracks don;t need to cross. I don;t see what purpose that serves, other than to get a single direction reverse loop in there, which isn;t really needed. For out and back operation, you don;t need a reversing section, you can turn the train in the yard and go back the way you came, and for continuous running, you just go around the loop, so without ANY reversing section, you've got both out and back type operation as well as an option for continuous run to just watch the trains roll by.

                            --Randy


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    September 2004
  • From: Dearborn Station
  • 19,228 posts
Posted by richhotrain on Wednesday, January 8, 2020 3:38 PM

Trainzman2435, you do have options. If you are reluctant to follow Randy's suggestion, then stick with your original idea of reversing the upper loop, using the Peco double slip as part of the reversing movements. The only limitation with that plan is that you can only reverse trains in a single direction. However, if you add a second reversing section to the bottom loop, you can then return the trains to the original direction. That would give you lots of flexibility.

Rich

Alton Junction

  • Member since
    October 2019
  • 182 posts
Posted by Trainzman2435 on Wednesday, January 8, 2020 4:09 PM

rrinker

 No, that's not what I meant. WHat I meant was remove ALL of that track. Come off the other end of the yard to go over to the turntable area. ANd JUST to the turntable area. Heck, there's enough toom ro add another track to the yard as well. ANd then for the industry on the right, use a right-hand turnout off the passing siding a the top. Those tro tracks don;t need to cross. I don;t see what purpose that serves, other than to get a single direction reverse loop in there, which isn;t really needed. For out and back operation, you don;t need a reversing section, you can turn the train in the yard and go back the way you came, and for continuous running, you just go around the loop, so without ANY reversing section, you've got both out and back type operation as well as an option for continuous run to just watch the trains roll by.

                            --Randy

 

Randy, i think i see what you mean. Take a look at te new design and tell me your thoughts, too much or??? Thanks!

  • Member since
    February 2002
  • From: Reading, PA
  • 27,987 posts
Posted by rrinker on Wednesday, January 8, 2020 4:44 PM

 Closer. Connect those industries to the right to the passing siding at the top, not off the yard.

                            --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    January 2009
  • 4,813 posts
Posted by RR_Mel on Wednesday, January 8, 2020 4:50 PM

Personally I miss the ability to reverse the direction of an entire train.  The final drawing takes that away.  A passenger train with an observation car would have to use the turntable or the five finger method to reverse directions same as the locomotives.
 
My layout isn’t large enough to have dual loops so I built in a wye into the loop.  I have to back the entire train into the wye to turn it back to normal which is a PITA but I can reverse the complete train without the five finger mode.
 
 
Mel
 
 
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
 
  • Member since
    February 2002
  • From: Reading, PA
  • 27,987 posts
Posted by rrinker on Wednesday, January 8, 2020 4:56 PM

 At least with a wye you can go both ways. The way this was, you could go from ccw to cw, but not back again the other way. 

Passenger cars? What are those? Even thr prototype had a way around turning the train - the Reading Crusader ran an observation car on each end, the loco just switched ends. The tender of the assigned locos had an extended shroud to hid the observation end on the one coupled to the loco.

                                             --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!