CBSO72 Keith
Thank you for posting the great video on working a Hump Yard, really enjoyed watching it and seeing one that really works, even portable to a train show.
Charlie
@Choo Choo Charlie posted:CBSO72 Keith
Thank you for posting the great video on working a Hump Yard, really enjoyed watching it and seeing one that really works, even portable to a train show.
Charlie
Thank You.
That club also had a transfer table on the layout. Look what they used to move the table....
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Well that is one unusual way to operate the transfer table definitely not inexpensive.
Charlie
The hump yard has 35 24 volt solenoid valves infrared controlled. its auto uncouple, retard and sort on the inner 4 tracks. The transfer table has a 12 volt motor to move it now. It was fun to build and to operate. Happy railroading Bryan
CBS072
I found your comment below interesting on braking or retarding the rolling cars.
" the Dodge City Kansas Train Show. The club is out of North Platte, Nebraska. They used air blowing thru small tubes between the rails to slow the cars."
Adding electrical retarders would be required for each track or air tubes, with some kind of valve for each track. In your video, I think I can see each car slightly slow down after the first 2 feet or so, after being turned loose. It looks like it works very well, my first model hump yard in action.
Charlie
@Choo Choo Charlie posted:CBS072
I found your comment below interesting on braking or retarding the rolling cars.
" the Dodge City Kansas Train Show. The club is out of North Platte, Nebraska. They used air blowing thru small tubes between the rails to slow the cars."
Adding electrical retarders would be required for each track or air tubes, with some kind of valve for each track. In your video, I think I can see each car slightly slow down after the first 2 feet or so, after being turned loose. It looks like it works very well, my first model hump yard in action.
Charlie
It has been 9 years or more the last time I saw the layout, I think each track had 3 tubes blowing air,, They may of had a valve on each of the tracks so to only turn the air on to the track that they were using, I remember they had a 10 gallon air compressor, but I do not remember how many times it started each day of the show. I will look to see if I have other pictures of the layout.
@CBS072 posted:It has been 9 years or more the last time I saw the layout, I think each track had 3 tubes blowing air,, They may of had a valve on each of the tracks so to only turn the air on to the track that they were using, I remember they had a 10 gallon air compressor, but I do not remember how many times it started each day of the show. I will look to see if I have other pictures of the layout.
I find a picture of the all of the yard tracks, but it is hard to see the air tubes, I think they white in color, Also may have a row of tubes that are black also.
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The bottom row of retarders are 1/8 tubes 3 per track, a 8 foot of table has been added since the picture of Eldon starting the compressor. The bottom row of retarders are progressive, no air till 3 cars on that track 1 valve used, after five cars 2 valves use, after seven cars 3 valves operate when the infrared detects a car. I did these so cars would roll to the bumpers. The tubing used is the 1/8 tubing that truck shifter use old school. The top ten solenoid valves are from Ag-Chem RoGator Sprayer and are 1/4 inch, tubing is oil sampling tube. Power is 2 Dewalt 12volt series together for 24 volts.
On transfer table, it no longer has a switch engine moving it. Now it a 12 volt motor, with a variable speed motor control, d shafts from Servo City, with sprockets with #25 chain. I use infrared detection for auto indexing to the track.
Happy Railroading Bryan
Ken and Bryan
Thank you both for the very informative responses on the neat Hump Yard shown in the video from the train club. That Hump Yard looks simple and works very well but it obvious that much thought, planning, construction, testing and modifications went into it. It must have been a fun project.
Charlie
Laws of physics do not scale down very well.
Unless you have a way to control the speed of the cars, I think you are creating a problem for yourself. Rolling resistance is going to vary from non powered engine lightest car, and basically be all over the place. Good luck. My yard is flat. I just wish it were longer.
John
This is a fun thread to read and @Fridge56Vet, my question is what size is your space you would allow for a Hump Yard? After reading many of the comments above, (not being negative), I still think the addition of a transfer table area would be so much more interesting and Millhouse and Ross make great model transfer tables. I’m going to show pictures of my good friend Dr. Jack Fishers. Making a problem free model hump yard just seems so stressful to me. Happy Railroading Everyone 
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