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  2. List of steepest gradients on adhesion railways - Wikipedia

    en.wikipedia.org/wiki/List_of_steepest_gradients...

    Built as a rack railway, adhesion operation only by passenger railbuses, now only museum operation on part of the line. 1 in 14 (7.0%) Red Marble Grade, Topton, North Carolina. A 2015 survey [12] lists the 3.5 mile stretch between MP 87 and MP 90.5 at a 4% average grade and says there are isolated stretches approaching 7%. When originally built ...

  3. Ruling gradient - Wikipedia

    en.wikipedia.org/wiki/Ruling_gradient

    In the 1953 edition of Railway Engineering William H. Hay says "The ruling grade may be defined as the maximum gradient over which a tonnage train can be hauled with one locomotive....The ruling grade does not necessarily have the maximum gradient on the division. Momentum grades, pusher grades, or those that must regularly be doubled by ...

  4. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    Grade is usually expressed as a percentage - converted to the angle α by taking the inverse tangent of the standard mathematical slope, which is rise / run or the grade / 100. If one looks at red numbers on the chart specifying grade, one can see the quirkiness of using the grade to specify slope; the numbers go from 0 for flat, to 100% at 45 ...

  5. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    In terms of model railway operation, gauge 3 is the largest (standard gauge) scenic railway modelling scale, using a scale of 13.5 mm to the foot. The Gauge '3' Society represents this aspect of 2 + 1 ⁄ 2-inch gauge railway modelling with both electric and live steam operation. Gauge '3' corresponds to NEM II scale, also known as "Spur II" in ...

  6. Steep grade railway - Wikipedia

    en.wikipedia.org/wiki/Steep_grade_railway

    A steep grade railway is a railway that ascends and descends a slope that has a steep grade. Such railways can use a number of different technologies to overcome the steepness of the grade. Such railways can use a number of different technologies to overcome the steepness of the grade.

  7. Rack railway - Wikipedia

    en.wikipedia.org/wiki/Rack_railway

    The Pilatus Railway is the steepest rack railway in the world, with a maximum gradient of 48% and an average gradient of 35%. Functioning of the rack and pinion on the Strub system. A rack railway (also rack-and-pinion railway, cog railway, or cogwheel railway) is a steep grade railway with a toothed rack rail, usually between the running rails.

  8. AAR wheel arrangement - Wikipedia

    en.wikipedia.org/wiki/AAR_wheel_arrangement

    The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads.Essentially a simplification of the European UIC classification, it is widely used in North America to describe diesel and electric locomotives (including third-rail electric locomotives).

  9. Saluda Grade - Wikipedia

    en.wikipedia.org/wiki/Saluda_Grade

    Saluda Grade was the steepest standard-gauge mainline railway grade in the United States. [1] Owned by the Norfolk Southern Railway as part of its W Line, Saluda Grade in Polk County, North Carolina, gained 606 feet (185 m) in elevation in fewer than three miles (4.8 km) between Melrose and Saluda, North Carolina. Average grade was 4.24 percent ...