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% grade is the rise divided by the run X 100%.  On a small layout it is difficult to get 2%, or less grades.   This is an 3.8% grade.   A 7" rise requires 15 ft. (180") of run.  Both grades pictured require the curves to also be part of the grade. 

There is very little of the outer loop that is not a grade. 

Three rail units have traction tires on at least 1/2 of the drive wheels. 

Tough to do a small grade on a model train layout, unless it's a large, large layout.  IMO  Mike CT.  

Surprisingly the down is more of an issue than the up.  Grades require more power.  All (5) Atlas units are powered.  Click on the triangle for a video of a consist on the grades pictured. 

Last edited by Mike CT

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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