Part 40 — Appendix IV.
Reading edition
Table of Resistances of Railroad Trains with Different Grades and Speeds.
Rise of gradient, feet per mile. Resis- tance due to ascent alone in lbs. per ton (2,000 lbs.) of train. Total resis- tance, lbs. per ton, at rate of 5 miles per hour. 10 miles per hour. 15 miles per hour. 20 miles per hour. 25 miles per hour. 30 miles per hour. 35 miles per hour. 40 miles per hour. 45 miles per hour. 50 miles per hour. 60 miles per hour. 70 miles per hour.
0 6 .1 6 .6 7 .3 8 .3 9 .6 11 .2 13 .1 15 .3 17 .8 20 .6 27 .0 34 .6
5 1 .8 7 .9 8 .4 9 .1 10 .1 11 .4 13 .0 14 .9 17 .1 19 .6 22 .4 28 .8 36 .4
10 3 .7 9 .8 10 .3 11 .0 12 .0 13 .4 14 .9 16 .8 19 .0 21 .5 24 .3 30 .7 38 .3
15 5 .6 11 .7 12 .2 12 .9 13 .9 15 .2 16 .8 18 .7 21 .9 24 .4 27 .2 33 .6 41 .2
20 7 .5 13 .6 14 .1 14 .8 15 .8 17 .1 18 .7 20 .6 22 .8 25 .3 28 .1 34 .5 42 .1
25 9 .4 15 .5 16 .0 16 .7 17 .7 19 .0 20 .6 22 .5 24 .7 27 .2 31 .0 37 .4 45 .0
30 11 .3 17 .4 17 .9 18 .6 19 .6 21 .9 22 .5 24 .4 26 .6 29 .1 31 .9 38 .3 45 .9
35 13 .2 19 .3 19 .8 20 .5 21 .5 22 .8 24 .4 26 .3 28 .5 31 .0 33 .8 40 .2 47 .8
40 15 .1 21 .2 21 .7 22 .4 23 .4 24 .7 26 .3 28 .2 30 .4 32 .9 35 .7 42 .1 49 .7
45 17 .0 23 .1 23 .6 24 .3 25 .3 26 .6 28 .2 30 .1 32 .3 34 .8 37 .6 44 .0 51 .6
50 18 .9 25 .0 25 .5 26 .2 27 .2 28 .5 30 .1 32 .0 34 .2 36 .7 39 .5 45 .9 53 .5
60 22 .7 28 .8 29 .3 30 .0 31 .0 32 .3 38 .9 35 .8 38 .0 40 .5 43 .5 49 .9 57 .5
70 26 .5 32 .6 33 .1 33 .8 34 .8 36 .1 37 .7 39 .6 41 .8 44 .3 47 .1 53 .5 61 .1
80 30 .3 36 .4 36 .9 37 .6 38 .6 39 .9 40 .5 42 .4 44 .6 47 .1 49 .9 56 .3 63 .9
90 34 .0 41 .0 40 .6 41 .3 42 .3 43 .6 45 .2 47 .1 49 .3 51 .8 54 .6 61 .0 68 .6
100 37 .8 43 .9 44 .4 45 .1 46 .1 47 .4 49 .0 51 .9 54 .1 56 .6 59 .4 65 .8 73 .4
110 41 .6 47 .7 48 .2 48 .9 49 .9 51 .2 52 .8 54 .7 56 .9 59 .4 62 .2 68 .6 76 .2
120 45 .4 51 .5 52 .0 52 .7 53 .7 55 .0 56 .6 58 .5 60 .7 63 .2 66 .0 72 .4 80 .0
130 49 .2 55 .3 55 .8 56 .5 57 .5 58 .8 60 .4 62 .3 64 .5 67 .0 69 .8 76 .2 83 .8
140 53 .0 59 .1 59 .6 60 .3 61 .3 62 .6 64 .2 66 .1 68 .3 70 .8 73 .6 80 .0 87 .6
150 56 .8 62 .9 63 .4 64 .1 65 .1 66 .4 68 .0 69 .9 72 .1 74 .6 77 .4 83 .8 91 .4
160 60 .6 66 .7 67 .2 67 .9 68 .9 70 .2 71 .8 73 .7 75 .9 78 .4 81 .2 87 .6 95 .2
170 64 .3 70 .4 70 .9 71 .6 72 .6 73 .9 75 .5 77 .4 79 .6 82 .1 84 .9 91 .3 98 .9
180 68 .1 74 .2 74 .7 75 .4 76 .4 77 .7 79 .3 81 .2 83 .4 85 .9 88 .7 95 .1 102 .7
190 71 .9 78 .0 78 .5 79 .2 80 .2 81 .5 83 .1 85 .0 87 .2 89 .7 92 .5 98 .9 106 .5
200 75 .7 81 .8 82 .3 83 .0 84 .0 85 .3 86 .9 88 .8 91 .0 93 .5 96 .3 102 .7 110 .3
210 79 .5 85 .6 86 .1 86 .8 87 .8 89 .1 90 .7 92 .6 94 .8 97 .3 100 .1 106 .5 114 .1
220 83 .3 89 .4 89 .9 90 .6 91 .6 92 .9 94 .5 96 .4 98 .6 101 .1 103 .9 110 .3 117 .6
230 87 .1 93 .2 93 .7 94 .4 95 .4 96 .7 98 .3 100 .2 102 .4 104 .9 107 .7 114 .1 121 .7
240 90 .8 96 .9 97 .4 98 .1 99 .1 100 .4 102 .0 103 .9 106 .1 108 .6 111 .4 117 .8 125 .4
250 94 .6 100 .7 101 .2 101 .9 102 .9 103 .2 105 .8 107 .7 109 .9 112 .4 115 .2 121 .6 129 .2
260 98 .4 104 .5 105 .0 105 .7 106 .7 107 .0 108 .6 110 .5 112 .7 115 .2 118 .0 124 .4 132 .0
270 102 .2 108 .3 108 .8 109 .5 110 .5 111 .8 113 .4 115 .3 117 .5 120 .0 122 .8 129 .2 136 .8
280 106 .0 112 .1 112 .6 113 .3 114 .3 115 .6 117 .2 119 .1 121 .3 123 .8 126 .6 133 .0 140 .6
290 109 .8 115 .9 116 .4 117 .1 118 .1 119 .4 121 .0 122 .9 125 .1 127 .6 130 .4 136 .8 144 .4
300 113 .6 119 .7 120 .2 120 .9 121 .9 123 .2 124 .8 126 .7 128 .9 131 .4 134 .2 140 .6 148 .2