| Show SPEED OF PASSENGER TRAINS tests to determine the resistance of passenger trains at all speeds up to seventy miles per hour and for average car weights have been completed by the railway department of the engineering experiment station of the university of illinois of the cars composing the twenty eight trains tested had six wheel trucks and sixty two had four wheel trucks these tests were made on the lines of illinois central railroad by prof E C schmidt and H H dunn upon well constructed and well maintained main line track laid almost entirely with 85 pound or 90 pound rail and balla ballested ballasted bal lasted sied with broken stone from the results which are given in bulletin no of the engineering esperi 1 ment station a table has been prepared showing the probable average value of resistance si for passenger trains composed of bf cars weighing from thirty to seventy tons t and operating at speeds ranging from div five e to seventy five miles per hour 5 copies of bulletin no may be had without charge by addressing the engineering 1 experiment station urbana illinois |
