Skip to main content

Hi,

 

Trying to work through the yard plan after reading Andy Sperando's book and the "10 Commandments" article (Andy, if you're out there, would really appreciate your thoughts too) - both were so informative.  Anyway, the layout in the pic shows only the "sea level" route (it's going to be 3 levels altogether but no need to show other levels for this query).  Overall, I like my layout (but totally welcome any/all suggestions and criticism) and purposely have the yard going under the double main as it allows for a nice long yard without it dominating the layout (and it also creates a natural reversing loop).  But with this set-up, the drill track (lower left track that trails off the A/D track) connects via double slip switch at the beginning of the yard ladder, forcing the switcher to cross from the drill track over the A/D track to grab yard cars.  Would appreciate your thoughts/comments/help...

 

 

 6.27.12Upper-Lower-and-Yard Only

Thanks,

 

Peter

     

 

 

Attachments

Images (1)
  • 6.27.12Upper-Lower-and-Yard Only
Last edited by PJB
Original Post

Replies sorted oldest to newest

I see nothing wrong with your yard.  In fact, I like it a lot.  The only problem I can see is getting reliable operation out of the double slipper.  They can be slippery.  My layout is quite similar to the sea level of yours.  20' X 10'.  I would love to see all 3 levels and how you bring it together.  

I need more description of the elevations near the yard.  The blue yard tracks are at one level and I see the black mainline appears to connect with both ends of the yard.  Does the mainline climb a steep grade to pass over the yard tracks in the middle?

 

Generally, a double slip switch is asking for trouble in an area of heavy traffic.

Hey thanks for all the advice! 

 

Good question - I'm thinking my bigger problem might be the overpass grade.  I have been toiling over this, trying to keep the incline within reason. 

 

Don't know the NMRA standard for necessary clearance at an overpass, so I assumed 6".  With this assumption, according to RR-track, the incline is 4.8% (measured from the overpass to 10" before the closest yard turnout at the right end of the yard).  And, it's 4.2% on the left side, leading to the double slip switch.  Been trying to lessen these grades, just can't figure out another arrangement to do so.  Obviously, if I need less clearance, this would help...

 

The double slip -I just recently inserted into the plan to save space, rather then 2 regular turnouts.  Sounds like popluar consensus is that I should go back to the 2 turnouts?

 

Thanks,

 

Peter

Post
The Track Planning and Layout Design Forum is sponsored by

AN OGR FORUM CHARTER SPONSOR

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×