File:The Street railway journal (1902) (14760442732).jpg

Identifier: streetrailwayjo201902newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
a curve having a minimum radiusof 875 seconds, equivalent to about 6^/2 degs. curve, the effect ofwhich may be assumed as approximately equivalent to the 1 percent up-grade of the steam runs. NEW YORK CENTRAL STEAM LOCOMOTIVE NO. 1-107.All steam locomotive runs were made upon the New YorkCentral main line track west of Schenectady against an up gradeof 1 per cent and a head wind of 15 m. p. h. The temperaturs was4 degs. C. and the rail wet with a very light falling snow. No. ofRun Character of Load Weight ofLoad, Tons TotalWeight ofTrain, Tons MaximumSpeed,in. p. h. AverageSpeed,m. p. h. 2 157. 264. 39.0 28.2 4 5 130. 237. 41.3 28.4 6 4 104. 211. 40.9 27 4 8 3 184. 45.7 •z~:a 10 2 47. 154. 48.0 30.1 12 1 23. 130. 50.9 33.0 Although this locomotive was especially built for suburban oracceleration work, and was provided with a large fire box, givingit facilities for rapid steaming, the pressure dropped from 200 lbs.to less than 185 lbs. during the first part of acceleration. In start-
Text Appearing After Image:
tests there was about the same weight upon the drivers, it is in-teresting to note how well this driver weight was utilized. Thisis shown by the following tables, giving the speed reached in ten,twenty and thirty seconds with equal trailing load for both electricand steam trains: Miles Per Hour Attained in 10 Seconds No. of trailers 1 2 3 4 5 6 Motor cars No. 4 and 5 22.5 20.7 17.3 14.4 12.6 11 Locomotive No. 1407 14. 13. 12 5 12. 10. 9.7 Miles Per Hour Attained in 20 Seconds No. of trailers 1 2 3 4 5 6 Motor cars No. 4 and 5 34. 32.3 29.4 27.4 24.5 21.2 Locomotive No. 1407 25. 21.2 21.5 19.5 18. 16.3 Miles Per Hour Attained in 30 Seconds No. of trailers 1 2 3 4 5 6 Motor cars No. 4 and 5 38.2 36.4 34.2 32. 30.3 28.1 Locomotive No. 1407 31.7 26.2 27. 24.7 23.2 20.8 An inspection of the tables brings out clearly the fact that theelectric motors during acceleration can more effectively utilizethe weight upon their drivers than a steam locomotive. As rapidacceleration is especially impor

Note About Images