D.—6.

Trial of Locomotives between Invercargill and Gore with Nightcaps Coal.

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Type of Engine. Particulars. Baldwin. Class Q. Glasgow. Class Uc. Glasgow. Class Da. Baldwin. Class Ub. First importation. Baldwin. Class Ub. Second importation. Baldwin. Class Ub. Second importation. N.Z.R. Class Wa. Baldwin. Class Wd. Baldwin. Class Wd. Size of cylinders .. .. .. in. Clearance of cylinders .. .. .. „ Area of heating-surface .. .. .. sq. ft. Area of grate-surface Number of tubes Outside diameter of tubes .. .. in. Size of exhaust nozzle .. .. .. „ Weight of engine in working-order .. .. tons Number of vehicles Length of route .. .. .. miles Number of ton miles of train-load Number of ton miles of total load Weight of train in working-order, including engine, lb. tender, and freight Weight of train in working-order, excluding engine and tender 16 by 22 1,689 40 188 2 4 68-875 31 80 24,880 30,390 850,920 16 by 22 972 16 187 ia -t-4. 4 61-25 31 80 24,880 29,780 833,840 16 by 20 3 972 16 187 4 61-25 28 80 22,472 27,372 766,416 16 by 20 ' | full 1,320 16 177. 2 4 57-25 28 80 22,472 27,052 757,456 16 by 20 A 1,320 10 177 2 4 60-4 28 80 22,472 27,304 764,512 16 by 20 A 1,320 16 177 2 4 60-4 28 80 22,472 27,304 764,512 14 by 20 740 12-5 142 if 37 25 26 80 20,564 23,544 659,232 14 by 20 A 845 17 177 43-75 26 80 20,564 24,064 673,792 14 by 20 A 845 17 177 3* 43-75 26 80 20,564 24,064 673,792 696,640 696,640 629,216 629,216 629,216 629,216 575,792 575,792 575,792 Locomotive Tests: General Results — Running of Train — Inveroargill .. .. .. dep. Woodlands Morton Mains .. .. .. arr. Morton Mains .. .. .. dep. Edendale .. .. .. arr. Edendale .. .. .. dep. Mataura Gore .. .. .. .. arr. Gore .. .. .. .. dep. a.m. 8.40 9.17 9.33 9.43 10.3 10.9 10.36 10.55 11.50 p.m. 12.14 12.26 12.55 1.0 1.42 2.15 a.m. 8.41 9.17 9.35 9.45 10.7 10.12 10.37 10.56 11.50 p.m. 12.13 12.26 12.55 12.59 1.41 2.15 a.m. 8.35 9.13 9.29 9.38 9.59 10.5 10.31 10-52 11.50 p.m. 12.13 12.27 12.55 12.59 1.40 2.15 a.m. 8-40 9-18 9.33 9.46 10.6 10.11 10.38 10.58 11.50 p in. 12.14 12.26 12.56 1.1 1.41 2.15 a.m. 8.40 9.17 9.34 9.44 10.5 10.10 10.36 10.55 11.50 p.m. 12.13 12.26 12.53 12.57 1.42 2.15 a.m. 8.40 9.18 9.34 9.47 10.9 10.14 10.39 10.58 11.51 p.m. 12.14 12.27 12.56 1.0 1.44 2.17 a.m. 8.40 9.18 9.34 9.46 10.6 10.12 10.38 10.58 11.50 p.m. 12.13 12.25 12.55 1.0 1.42 2.15 a.m. 8.40 9.18 9.33 9.42 10.3 10.9 10.36 10.55 11.50 p.m. 12.13 12.25 12.55 1.0 1.42 2-15 a.m. 8.40 9.18 9.33 9.43 10.4 10.9 10.35 10.55 11.50 p.m. 12.13 12.25 12.55 1.0 1.40 2.15 Mataura .. .. .. arr. Mataura .. .. .. dep. Edendale .. .. .. arr. Edendale .. .. .. dep. Woodlands Inveroargill .. .. .. arr. Total quantity of water used .. .. Imp. gal. Waste of water at injectors .. .. „ Water used, less waste at injectors .. „ Water evaporated per pound of coal .. lb. Water used per ton of train per 100 miles .. „ Water used per square foot of heating-surface per hour running-time 2,300 6-1 2,293-9 4-97 92-20 3-28 2,323-3 8-9 2,314-4 4-91 93-02 5-76 2,397-3 7-1 2,390-2 4-32 106-36 5-93 2,3173 7.8 2,309-5 4-71 102-77 4-23 2,170 6-75 2,163-25 4-95 96-26 3-96 2,117-5 7-5 2,110 4-93 93-89 3-85 1,903-1 1,895-1 5-18 92-16 6-19 2,084-33 4-3 2,080-03 4-72 101-15 5-95 2,090 4-5 2,085-5 4-73 101-41 5 9T