Modular Standard for the Gauge

Discussion in 'Modular Layout Forum' started by 77railer, Apr 5, 2005.

  1. shaygetz

    shaygetz Active Member

    Interesting thought as I am designing a module with a gauntlet track over a single bridge (sometimes the guys at the club just hate me ;) )...

    From the Railway Standards Association of America handbook...


    2. An offset which a second track goes through a bridge designed for one track. A turnout frog with no switch points is used outside each end of the bridge. If original track having no turnouts is used outside each end of bridge, gauntlet track will have less side clearance ( on one side ) than original track. Because centerline of gauntlet track is offset from centerline of bridge ( or when both tracks are equally off-centered ) care must be exercised when evaluating the effects of a heavily loaded car on the bridge structure when such a car is using off-centered track.

    Pics will follow...uh...sometime this summer? :thumb:
  2. Russ Bellinis

    Russ Bellinis Active Member

    I don't think the NMRA standards are just setting standards for two mainlines, and suggesting that no other tracks should be used. Our club standards specify the specs for the mainlines. For "optional auxilliary tracks" (oat) anything goes. The mains are speced to allow virtually any locomotive or rolling stock to work. If I want to put industrial trackage on my module that has such tight radius's that only small switchers will operate on it, that's ok. Most of our modules have a siding with #6 or #8 turnouts leading off the main, but beyond that, things can get tight. It is not boring!
  3. rcline

    rcline Member

    1 2 3 4 5 6 7 8 9 10
  4. cidchase

    cidchase Active Member

    Hey, chill, Randy!! :D :D :D

    The purpose of modules is to allow the group to assemble and operate a
    large portable and flexible layout in which everyone has a part. Without
    an interfacing standard, it would be impossible!! :thumb:

    Of course the NMRA isn't trying to tell you how to build your own layout, just
    recommending a way that you can play with others!! :D :D :D
  5. rcline

    rcline Member

    Cidchase - Sorry I got a little hot under the collar.

Share This Page