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Table 2 Clearance Info for Various Grades

Table 2 below shows the various clearances for 2%, 3 %, and 4% grades:

  Clearance (Rise) 2% Run 3% Run 4% Run
Scale inches inches inches inches
O 6.5 325 216.67 162.5
S 5.5 275 183.33 137.5
HO 3.5 175 116.67 87.5
TT 2.5 125 83.33 87.5
N 2 100 66.67 50
Z 1.5 75 50 37.5

Note: Rise/Run x 100 = Per Cent Grade (Slope)

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