minimuim radius for amtrak?

Discussion in 'Track Planning' started by csxengineer, Aug 6, 2003.

  1. csxengineer

    csxengineer Member

    using N scale unitrack...
    would it jackknife on my 11" curves? 9 3/4"?
    or just look really stupid?
  2. garyn

    garyn Member


    It will do 11"r curves. I have 12"r curves and full size passenger trains don't look right, especially from above. The problem is too much overhang at the ends of the car and the middle of the car. Also there will be a LOT of force against the flange when going around those curves, if your trackwork is not smooth you WILL have a derail.

    For full size 85ft passenger cars, the general recommendation is to go to as large a radius curve as you can. I am size limited and run mainly freight, but were I to do a passenger layout I would definitely go to larger curves.

    If you cannot go to a larger curve, a trick I used with sectional track was:
    - the inbound straight track,
    - then 1 section of 19"r curve track,
    - then go into the 11"r curve,
    - then 1 section of 19"r curve track,
    - then the outbound straight track.
    The section of 19"r curve track will ease the transition of the train from straight to the 11"r curve. It will look better and operate better.

    Gud luk & Njoy

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