. American engineer and railroad journal . No. 6.—Tonnage Rating Diagram. from that at the foot of the hill t. say. five miles per hour atthe top. The relation of this to the maximum T can be foundfrom the right-hand curve of Diagram No. average resistance to speed may be taken from Diagram 264 AMERICAN ENGINEER AND RAILROAD JOURNAL. No. 2 and the resistance due to actual grade from the samechart. This resistance, however, is to be reduced by the amountof inertia due to retardation of train from the maximum speedto five miles per hour. The average force of inertia in poundsper ton
. American engineer and railroad journal . No. 6.—Tonnage Rating Diagram. from that at the foot of the hill t. say. five miles per hour atthe top. The relation of this to the maximum T can be foundfrom the right-hand curve of Diagram No. average resistance to speed may be taken from Diagram 264 AMERICAN ENGINEER AND RAILROAD JOURNAL. No. 2 and the resistance due to actual grade from the samechart. This resistance, however, is to be reduced by the amountof inertia due to retardation of train from the maximum speedto five miles per hour. The average force of inertia in poundsper ton may be expressed approximately by the formula,V- — 25 70 , where x V = initial velocity in miles per = distance traversed during retardation, in No. 3 gives a series of these curves for various values.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
