The layout I currently have under construction is a free lanced plan of a fictitious portion of the N&W Pocahontas District. Being a coal hauler located in the Appalachian mountains, you would expect my layout to have a lot of grades, but such is not the case.
With but a few exceptions on the main deck, the majority of the visible portions of the layout are flat. The grades occur in the helices that connect each deck. I designed the layout that way intentionally so cars in the yard and various industry and mine spurs on the layout wouldn't roll anywhere once spotted.
I'm rethinking that decision however. After reading Joes Atkinson's post on converting to Loksound, I watched Matt Herman's video of a LokSound equipped lashup recorded on Mike Confalone's Allagash layout. Hearing the wonderful way in which the engine sounds were handled with the Full Throttle feature up and down the grades made me wish I had more grade portions on the visible parts of my layout so I could make use of that feature when I equip my locos with Full Throttle decoders.
It wouldn't be very difficult at this point for me to add a grade on the upper deck of my layout. A 1.1% grade could easily be accomplished by adjusting my roadbed risers. The proposed grade can be seen on my track plan below. I've highlighted the mainline in red to make the grade adjustment stand out, with the summit of the grade as indicated.
What troubles me though, and the reason I'm writing this post, is what would I do now with the two mine sidings that are next to the mainline and would have the same grade? I over weight my cars 1 oz/car inch and have tuned all the trucks to be as free wheeling as possible, so my guess is they will all roll down the grade once spotted. That may be very prototypical, since many mines used gravity to move cars around, but on a model railroad that proves to be kind of a pain.
I've seen various solutions posted here to spotting cars on a grade. My favorite one was using rare earth magnets to hold a special wire that popped up thru the ties on the track to hold the cars, but I'm not sure I want to go that route. Right now I'm thinking about cutting a small piece of plastic sprue that I've got left over from assembling rolling stock, say maybe about 1/8" long, filing a small slot in it equal to or just slightly smaller than the width of the railhead so it stays in place, and using that as a kind of removable "derail" to keep the cars spotted where I want them.
Here's how I think it would work. The AM mine shifter would spot the empty hoppers on the high side of the mine spur toward the summit and I'd put the "derail" on to hold them. Later on I would manually install my coal loads in the hoppers, and shift them to the lower end of the spur (probably using my hand as the 0-5-0 switcher to do that) and once again put the "derail" in place to hold them until they are picked up by PM mine shifter later on in the operating day.
So any thoughts or suggestions? Do you think the layout modification is worth the trouble? What would your solution be for spotting cars at the two mines and keeping them in place? Has anyone tried something like the "derail" I'm thinking of? For those of you with mines on your layout, do you spot and maneuver your hoppers the way I'm envisioning, or do you do something differ?
As always, thanks for the input!
Paul Krentz
Free-lancing a fictitious portion of the N&W Pocahontas "Pokey" District
Paul Krentz
Free-lancing a portion of the N&W Pocahontas "Pokey" District
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