ISO.....Mathematician !

mtntrainman Jan 21, 2022

  1. C&O_MountainMan

    C&O_MountainMan TrainBoard Member

    283
    764
    13
    Not in the least. This thread is replete with examples of how to figure it out. You have stated your rise: .3125”. You have stated your desired slope: 10% (otherwise stated as 0.10).

    All that is needed is to divide the rise by the slope, and you get your run. The answer has already been furnished by others: Three and one-eighths inches. You have also stated your constraint of having only 1.5 inches of room. Divide your rise by your constrained run of 1.5 inches, and you’ll get the 20.8% slope I stated.

    If you want your ten percent slope, and the inch and a half is all the room you have, you’ll have to get the dock height and warehouse height closer together. By about half.
     
  2. mtntrainman

    mtntrainman TrainBoard Supporter

    10,061
    11,323
    149
    Well...to be clear as mud again...I have read runs of 1 inch to 3 inches and everywhere in between. That is not everyone agreeing on the same run. But I do appreciate the reply...thnxs.
     
    Last edited: Jan 22, 2022
  3. MK

    MK TrainBoard Member

    3,513
    4,889
    87

    No, you can figure it out easily.

    Rise
    ----- = Grade
    Run

    5/16"
    ------ = 10 % grade
    Run

    5/16".......10
    ------ = -------
    Run.........100

    Cross product algebra:

    10 * Run = 5/16" * 100
    10 * Run = 0.3125" * 100
    10 * Run = 31.25"
    .......Run = 3.125" (or 3-1/8")
     
    Last edited: Jan 22, 2022
    Rich_S and mtntrainman like this.
  4. mtntrainman

    mtntrainman TrainBoard Supporter

    10,061
    11,323
    149
    ok guys...last time...I promise.

    I have a new question. I have a piece of plastic that measures.026" How many inches is that in n scale ? I am working on the handrails for my ramp. :D
     
    BNSF FAN likes this.
  5. BigJake

    BigJake TrainBoard Member

    3,329
    6,442
    70
    0.026 inches x 160 = 4.16 inches
     
    BNSF FAN likes this.
  6. mtntrainman

    mtntrainman TrainBoard Supporter

    10,061
    11,323
    149
    4.16 inches diameter handrail..."close enough is good enough" thnxs...(y)(y)
     
    BNSF FAN likes this.
  7. hawkdriver

    hawkdriver TrainBoard Supporter

    101
    236
    8
    Gotta be a rather large hand!
     
    Shortround and BNSF FAN like this.
  8. mtntrainman

    mtntrainman TrainBoard Supporter

    10,061
    11,323
    149
    BIG Shaquille O'Neal hands...like I have ! ;):whistle:
     
    Shortround and BNSF FAN like this.

Share This Page