Abstract

The purpose of this paper is to outline the changes which have occurred during the last five years in high-speed passenger-train cars and in motive power for hauling them and the economic factors which have brought about these changes. The new designs for passenger cars and the materials used in their construction are discussed. A detailed comparison of steam-locomotive and Diesel electric-locomotive characteristics as they affect the operation of these new high-speed trains is presented. Test data are included to indicate the importance of comparative stress in track produced by two types of power. Reference is made to the steady improvement which has been made in steam-locomotive design, but it is shown that there is a need for some rather extensive experimentation to make this type of power more suitable for this particular class of service. In conclusion, the author presents his views on the general results which have been secured from the operation of these new trains and the probable trend in their future development.

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