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Grade Question

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  • From: Maryville IL
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Grade Question
Posted by cudaken on Tuesday, October 2, 2012 11:23 PM

 I am helping a friend with a layout an to be honest I feel like I am trying to stuff 10 pounds of flex track in a 5 pound bag.

 Problem is 3 fold.

 1 Layout sizes. While to someone just starting in the hobby a 5 X 14 foot layout seems large. (some of you know who I am trying to help by now) It is really not that big when it comes to the next request!

 2 He wants elevation..

 3 He bought a Walther White Water Mining company. To make the mine a drive thought mine with a engine run a round using Atlas # 4 it is a about 8 feet long. I prefer not to make a dead end mine like mine ( I have one) because I never use it. I could use 2 Peaco  3 way turn outs and I would gain a little spaces but not a lot.

 So far I have the Mine at 6 inch off the bases line of the layout. Part of my idea is to have the track run under the mine. If the mine is 6 inch off the base and I factor 1/2 plywood base that leaves 5.5 inches. I need 3.5 inches to clear rolling stock  so I am down to 2 inches. Pules I must factor rail height for code 83 rail head. Radius so far is 22 inch turn and run length is 153 inch for a grade of 3.90 to the base of 0 inches. That sure won't work well! Whistling

  So what grade will I need to clear the mine and not be on the layout base line? While I know that a 2% grade takes 100 inches to go up 2 inches after that I am a little lost? Might be the Beer as well. Whistling

 I am using the Atlas 8 track planner.

 Thanks for the coming help!

                  Ken

I hate Rust

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Posted by selector on Tuesday, October 2, 2012 11:45 PM

Ken, can you partially split the burden so that the mine is a bit higher/lower, and the track that needs to climb doesn't have to climb so much?  I am having trouble understanding or picturing the situation, but maybe neither place needs to be where you presently envision it?

Secondly, you don't need a full 3.5 " clearance.  I know that's the recommendation by the NMRA, but 2.75 will be okay for all but the highest exhaust on a switcher diesel and the stove chimney on a caboose.  Of course, booms on wrecker cranes and double-stacks would not get through.  Using a smallish Code 40 -code 50 rail there won't buy you any significant clearance.

Here is a handy table that might help you to figure out your distances and grades.

http://www.awrr.com/table4.html

Crandell

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Posted by twcenterprises on Wednesday, October 3, 2012 12:38 AM

Ken -

What's the chance of posting a drawing or plan?  It might help us understand the problem more clearly.

Brad

EMD - Every Model Different

ALCO - Always Leaking Coolant and Oil

CSX - Coal Spilling eXperts

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Posted by bogp40 on Wednesday, October 3, 2012 8:22 AM

twcenterprises

Ken -

What's the chance of posting a drawing or plan?  It might help us understand the problem more clearly.

Brad

True, Somewhat know what you're working on from following other thread, but have no clue as to where you are at w/ it now.

The mine structure can lowered to split the elevation. This will decrease the distance needed for the "ramp" up. Don't really want to put it in a hole, but done? sceniced propery could work out. If it really needs, the grade could be pushed up to 2 1/2 and not really unheard of 3%. Sounds like the space could only handle a half dozen hoppers anyway.

Modeling B&O- Chessie  Bob K.  www.ssmrc.org

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Posted by cudaken on Wednesday, October 3, 2012 10:23 AM

 I would love to post a picture, but I forget how to convert RTS 8 file to a picture file? I use to be able to do it. Anyone know how?

 Thanks for the answers so far.

          Ken

I hate Rust

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Posted by NeO6874 on Wednesday, October 3, 2012 11:30 AM

If it works like xtrkcad ... there's either an "export to bitmap" option, or you can probably do "file --> save as --> " and in the "type" box in the save dialogue, choose "bitmap (*.bmp)"

-Dan

Builder of Bowser steam! Railimages Site

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Posted by cudaken on Wednesday, October 3, 2012 10:41 PM

 Thanks Dan, I will try that if can find my files! Bang Head

 Some how I lost the files when I was trying to make jpg files out of them. What setting do I use when opening files in the RTS 8.0 to find the one I saved? I can find the files that I sent to My documents by clicking on My Documents, but not the ones I saved in RTS 8.0? Sigh

 Ken, hit that darn wrong button again!

 

I hate Rust

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Posted by Paulus Jas on Thursday, October 4, 2012 4:21 AM

Hi Ken,

also for Atlas RTS 8 use "save as", and save the file as a BIT-map.On the bottom of the page you'l find this option.

And yes about 3,5 to 4 inches is sufficient for vertical clearence.

BTW though i read planning postings with lots of interest, the layout size you mentioned didn't ring a bell.

Paul

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