File:Train resistance - a consideration of its elements and a discussion of experiments made with the university dynamometer car (1900) (14571703619).jpg

Identifier: trainresistancec00kueh (find matches)
Title: Train resistance : a consideration of its elements and a discussion of experiments made with the university dynamometer car
Year: 1900 (1900s)
Authors: Kuehn, Alfred Leonhardt Eddy, Clarence Leroy
Subjects: Railroad trains Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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Champaign.There was practically no wind and the weather was clear. The temp-erature was about 70°F. The train consisted of empty cars,many ofwhich were just out of the shop. The length of the train was changedtwice during the run. The make-up of the train,in order from headto rear ,was as follows: From Chicago to Ctto, Dynamometer Car25 Box Cars 28 Coal 1 Caboose Total Weight 710 Tons From Otto to Gilman, Dynamometer Car18 Box Cars28 Coal 1 Caboose Total Weight 619 Tons From Oilman to Champaign, Dynamometer Car28 Coal Cars 1 Caboose Total Weight 381 Tons The train consisted mainly of coal cars,which give an un-favorable distribution of weight,hence a high resistance. The resistances determined were for portions of track havinguniform gradient and alinement. At the instant of passing a milepost,marks were made on the speed and dynamometer cards so that theposition of the car could be located by means of these points. Theportions of track selected were well in the middle part of a long
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