D.—l

67

Table III.—Fuel-consumption, Line B 1.

Table IV.—Fuel-consumption, Line A.

500-, 700-, 1,000-train Tri c 340-, 477-, 681-train Traffic. Miles. Grade, Per Gent. Speed. Resistance, One Train. Mile-pounds = R.M. Resistance, One Train. Mile-pounds = R.M. 0-728 0-830 1010 5-521 (2-68) Same as B 3 3-33 10 30,150 3.03 12 27,650 Same as B 3 0-33 I 8-5-12 I *5,200 15,594 25,050 27,920 153,680 13,920 Same as B 3 42,700 39,100 Same as B 3 *7,350 21,969 35,450 39,500 217,100 19,700 Total E,M., Otira to summit 236,164 333,719 0-187 B.M., same as B 3 on summit level R.M., Bealey to summit, same as B3 713-5 Same as B 3 1,009 1-836 18,597 Same as B 3 26,406 10-112 (Total length of line.) (254,761) (360,125) Total R.M . uphill Equivalem t R.M. downhill (10 per cent.) 25,47636,012 Total equi , valent R.M., one round trip 280,950 397,146 Cost of fuel = R.M. + 215,384-6 = £1-308 >er round trip. Cost of fuel = 1 = £1.842 per ,.M. H- 215,384-6 round trip. ♦ Resistance due to curvature.

500-, 700-, 1,000-train Traffic. 340-, 477-, 681-traln Traffic Miles. Grade, Per Cent. Speed. Resistance, One Train. Mile-pounds = B.M. Resistance, One Train. Mile-pounds = R.M. 6-640 0-262 0-162 0-752 0-275 (1-126) 2-70 12 24,950 2-57 12 23,850 2-51 12 23,350 2-47 12 23,000 2-46 12 22,950 0 24 8-5-12 *4,450 12 12 12 12 12 8-5-12 24,950 23,850 23,350 23,000 22,950 *4,450 165,700 6,250 3,780 17,300 6,310 5,010 35,200 33,700 33,000 32,500 32,400 *6,280 233,400 8,830 5,350 24,450 8,920 7,070 Total E.M., Otira to Summit ... 204,350 288,020 0-194 Summit 12 | 2,450 level. Summit j 12 1,365 level. 475 3,460 671 0-194 265 1,935 376 E.M., both ways on Summit level 740 1,047 0-312 0-363 2-42 12 12,565 1-67 12 9,115 3,920 574 17,850 12,920 5,565 814 'otal R.M E.M., Bealey to Summit 4,494 6,379 1. uphill (208,844) (294,399) Iquivalen it R.M. downhill (10 per cent.) ... 20,884 29,440 'otal equ; ivalent R.M., one round trip 230,468 324,886 Cost of fuel = R.M. + 215,384-6 = £1-07 per round trip. Cost of fuel = R.M. -=- 215,384-6 = £1-508 per round trip. * Resistance due to curvature.