HOn3 Degrees of Incline

Discussion in 'HO Scale Model Trains' started by Mastiffdog, Dec 14, 2003.

  1. Mastiffdog

    Mastiffdog Member

    I have 8' in length to spike down HOn3 track starting from a zero elevation. How many inches can I climb by the time I reach the end of the 8'?


  2. jim currie

    jim currie Active Member

    need a little more info what grade do you want ?
    are you running geared loco's?

  3. cidchase

    cidchase Active Member

    Hiya, dog!:D

    Giving yourself 6 " of easement on both ends (using up
    part of your 96"), you can elevate 3 and 3/8 inches with a 4% grade.
    You could check your pulling power on a test track
    incline if you feel you might want to go steeper. :) :) :)
  4. cidchase

    cidchase Active Member

    Hi Dog,
    I'm revisin' myself. After playing ariund with a cad
    layout I'm guessing the easement to be only 1" to 2" and
    your available rise to be 3 and 3/4 inches. Just cheat a hair
    and call it four:D :D
  5. Mastiffdog

    Mastiffdog Member

    Got the grade dialed in, it's 3%-4% max. Loosed up all the risers and bump up the low end of the grade, then buttoned everything back. The grade looks flater. Photos of progress to come.

    Thanks for the info,

  6. Vic

    Vic Active Member

    Don't Get Hung Up!!!

    Just for the newbies who haven't worked with grades before:wave:

    It doesn't matter what scale you are working with...the percent of grade is always the number of inches that the track rises divided by distance in inches transversed.


    A 3" rise in 100" distance = 3%
    3 / 100 = .03

    As Dog has discovered, due to the small physical size of our trackwork and the operational characteristics of our trains the grades don't always work out perfect...but if it looks good and operates good then that's what you want. Don't get hung up on having them right on the money!!!:) :thumb:
  7. Russ Bellinis

    Russ Bellinis Active Member

    You can also "cheat" a little in ho'3 since narrow gauge railroads would generally run a little steeper grade than standard gauge, and most of the narrow gauge trains were short, 4-5 cars max. Most locos will handle 4-5% grades, although they may jerk a bit coming down something that steep. If you try to run a class one mainline that steep, you will find yourself having to use way too much power for the size of train your pulling.

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