. American engineer and railroad journal . onds after the start, and for ease of comparison the curves forcorresponding steam and electric runs have been superimposed, asshown, Steam Itun No. 2, upon Electric Hun No. 1, etc. In thisway direct comparisons of In- steam and the electric service maybe made.) As the acceleration curves produced by the steam Locomotive andelectric motor cars have different shapes, and as in the two teststhere was about the same weight upon the drivers, it is interestingto note how well this driver weight was utilized. This is shownby the following tables giving the
. American engineer and railroad journal . onds after the start, and for ease of comparison the curves forcorresponding steam and electric runs have been superimposed, asshown, Steam Itun No. 2, upon Electric Hun No. 1, etc. In thisway direct comparisons of In- steam and the electric service maybe made.) As the acceleration curves produced by the steam Locomotive andelectric motor cars have different shapes, and as in the two teststhere was about the same weight upon the drivers, it is interestingto note how well this driver weight was utilized. This is shownby the following tables giving the speed reached in ten, twenty andthirty seconds with equal trailing load for both electric and steami rains. Miles Per Hour Attained in 10 Seconds. Number of trailers 1 2 3 4 5 6 Motor cars No. 4 and 5 11. Locomotive No. 1407 14. 13. 12. 10. Miles Per Hour Attained in 20 of trailers 1 2 3 4 Motor cars No. 4 and 5 34. Locomotive No. 1407 25. 5 0 18. One of the General Electric Motor Cars-Used in the Comparative Accelera-tion Tests. [This view shows also the Improved Type of Protected Third Rail and Contact Shoe, usedon the General Electric Test Railroad.) The Steam Runs.—New York Central Steam Locomotive No. steam locomotive runs were made upon the New York Cen-tral main-line track west of Schenectady, against an up grade of1 per cent, and a head wind of 15 m. p. h. The temperature was4 degrees C, and the rail wet with a very light falling snow. Total Maximum AverageNo. of Character Weight of weight of speed. speed, run. of load. load, tons, train, tons, , 2 6 Trailers 157. 264. 4 5 Trailers 130. 237. 6 4 Trailers 104. 211. 8 3 Trailers 77. 184. 10 2 Trailers 47. 154. 12 1 Trailer 23. 130. Although this locomotive was especially built for suburban, oracceleration, work, and was provided with a la
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
