. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . tion. In accelerating a train from a state of rest to a speedof 45 miles per hour however, the advantages of the boos- Roselle to O/ymt/or/tLE- 4 m/lesAvemaE Ghaoe -> °/o %& • 1 J s a gai «i3 «. a Si »-g a g 2 « S « I « v «T .» jj « a* n o *> £ > i I .feja 5 ■n erfuS piaH <£ H£ Zw H Qw I 0 1,200 430 ... 29,160 27,960 11,000 38,960 5 1,200 430 6 29,160 27,520 9,000 36,880 10 1,200 430 25 29,160 27,500 6,800 34,300 IS 1,200 430 56 27,900 26,210 5,500 31,620 20 1,200 430 100
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . tion. In accelerating a train from a state of rest to a speedof 45 miles per hour however, the advantages of the boos- Roselle to O/ymt/or/tLE- 4 m/lesAvemaE Ghaoe -> °/o %& • 1 J s a gai «i3 «. a Si »-g a g 2 « S « I « v «T .» jj « a* n o *> £ > i I .feja 5 ■n erfuS piaH <£ H£ Zw H Qw I 0 1,200 430 ... 29,160 27,960 11,000 38,960 5 1,200 430 6 29,160 27,520 9,000 36,880 10 1,200 430 25 29,160 27,500 6,800 34,300 IS 1,200 430 56 27,900 26,210 5,500 31,620 20 1,200 430 100 25,250 23,520 23,520 25 1,200 430 156 22,600 20,810 20,810 30 1,200 430 225 20,000 17,140 18,140 35 1,200 430 306 17,800 15,860 15,860 40 1,200 430 400 16,000 13,970 13,970 45 1,200 430 505 14,350 12,210 12,210 50 1,200 430 625 13,100 10,850 10,850 55 1,200 430 756 11,950 9,540 9,540 60 1,200 430 900 10,900 8,370 8,370 As previously stated, the data used in connection withthis study are based on the curves shown in the Novem-ber, 1926, issue of Railway and Locomotive Engineer-. ter and roller bearings is more pronounced as shownfrom the results between Roselle and Ontarioville, a dis-tance of 4 miles against a gradient of per cent, whichwere as follows: (A) A4-S—Plain Bearing Train sec. 100% (P.) A4-S—Booster-Plain Bearing Train sec. 85% (C) A4-S—Roller Bearing Train sec. 71% (D) A4-S—Booster-Roller Bearing Train sec. 687c Here it will be noted that the saving in time from thebooster and rolling bearing combined is 32 per cent. Thisapproaches closely to the possibilities shown in the graphicchart that was published on page 36 of the February issueof this publication. Speed-distance and speed-time curves are plotted for thesection between Roselle and Ontarioville and are herereproduced as Figs. 1 and 2. The locomotive used was the C. M. & St. P. class A4-S,Atlantic type, details of which are as follows: Locomotive Data Cylind
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
