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Catechism of the locomotive

Chapter 56: Appendix IV.
By Matthias N. Forney
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About This Book

Presented in a catechetical question-and-answer format, the work offers clear, practical instruction on locomotive steam engines and their operation. It explains steam properties and thermodynamic principles, boiler design and attachments, valve gear and cylinders, running gear, adhesion and traction, friction and lubrication, combustion and fuel, train resistance, and types of locomotives. It also covers inspection, routine operation, accidents and remedies, performance and operating costs, and responsibilities of crew, with tables and plates for dimensions and properties. The language aims to make technical concepts accessible to mechanics, drivers, firemen, and students.

Appendix IV.

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