ENGINE-TRIALS BETWEEN INVERCARGILL AND GORE (DETAILS OF).

Appendix to the Journals of the House of Representatives, 1903 Session I, D-06

D.-6.

1903. NEW ZEALAND.

ENGINE-TRIALS BETWEEN INVERCARGILL AND GORE (DETAILS OF).

Presented to both Houses of the General Assembly by Command of His Excellency.

Memorandum for the Hon. the Minister for Railways.

Eailway Department, Head Office, Wellington, Ist October, 1902. Trial of Locomotives. I have the honour to submit herewith report on trials of various classes of locomotives which have recently been made between Invercarglll and Gore. T. Eonayne, General Manager.

The Chief Mechanical Enginher, to the Genbbal Managek, New Zealand Eailways. Chief Mechanical Engineer's Office, Wellington, 30th September, 1902. g IKj Engine-trials. I have the honour to furnish for your information details of engine-trials recently made between Invercargill and Gore. The tests would have been more exhaustive if made on a continuous ascending gradient where the engines would have been working at nearly their maximum tractive-power. Such a length of line no°t being available, the trials had to be ran over a comparatively easy road, with, during a considerable portion of the time, the reversing-lever notched up close to centre, and steam wiredrawn by a nearly closed regulator. The Glasgow and New Zealand built locomotives, having Walschaert valve-gear, giving an earlier cut-off, required for this very light work less wire-drawing of the steam than was necessary with the American locomotives having Stephenson link-motion, giving a later cut-off. But if all the engines had been exerting their maximum effort, the conditions would have been practically identical, and the comparisons more conclusive. Of the larger locomotives, Class " Q," with large fire-grate area, gave the most efficient results. I attach, for your consideration, tabulated statement showing details of trials. Two series of tests were made —one with Brunner coal and the other with Nightcaps lignite. The tests were conducted under similar conditions, and every endeavour made to insure absolute impartiality. Weather was fairly uniform throughout, and, as the results of tests are based on the averages of six separate trials of the different types of locomotives, three with Brunner coal and three°with Nightcaps lignite, the slightly varying weather was comparatively unimportant. One notable feature was the very small quantity of ashes drawn through the tubes into the smoke-box of the Class "Q" locomotive, the tendency to throw sparks being, therefore, most materially reduced. I have, &c, A. L. Beattie, Chief Mechanical Engineer. The General Manager, New Zealand Eailways.

I—D. 6.

D.—6.

Trial of Locomotives between Invercargill and Gore with Nightcaps Coal.

2

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

1).—6.

Trial of Locomotives between Invercargill and Gore with Nightcaps Coal— continued.

3

Type of Engine. Particulars. Baldwin. Class Q. Glasgow. Class Uc. Glasgow. Class Ua. Baldwin. Class Ub. First importation. Baldwin. Class Ub. Second importation. Baldwin. Class UB. Second importation. N.Z.E. Class Wa. Baldwin. Class Wd. Baldwin. Class Wd. Locomotive Tests : General Results —continued. Water used per square foot of grate-surface lb. per hour running-time Equivalent evaporation per pound of coal from and at 212° F. Weight of coal burned on journey .. „ Actual weight of wood used in lighting-up .. Actual weight of coal used in lighting-up .. „ Total weight of coal and wood used .. „ Coal consumed per ton mile of train-load .. Coal used per ton of train per 100 miles .. „ Weight of coal consumed per hour Average weight of coal burned per square foot „ of grate-surface per hour running-time Coal used per train mile Calorimetric value of coal .. .. B.T.U. Weight of ashes taken from ashpan .. lb. Weight of ashes taken from smoke-box .. „ Weight of ashes, &c, taken out of firebox .. 138-74 6-09 4,613-6 224 784 5,621-6 0-185 18-54 1,116-1 27-90 349-96 6-02 4,7146 224 784 5,722-6 0-189 18-95 1,140-6 71-29 359-97 5-27 5,534 224 784 6,542 0-246 24-62 1,332-1 83-34 344-22 5-75 4,900 224 784 5,908 0-218 21-80 1,185-4 74-09 327-10 6-06 4,371-7 224 784 5,3797 0195 19-45 1,057 6 66-10 317-77 6-04 4,279-5 224 784 5,287-5 0-190 19-04 1,031-2 64-45 366-79 6-29 3,658-7 224 560 4,442-7 0-178 17-79 885-2 70-81 29602 5-75 4,409 224 560 5,193 0-214 21-44 1,066-7 62-75 296-80 5-79 4,406 224 560 5,190 0-21< 21-43 1,066 62-70 Maximum boiler-pressure .. lb. per sq. in. Minimum boiler-pressure .. „ Mean boiler-pressure throughout journey „ Mean temperature of feed-water.. .. deg. P. Mean temperature of atmosphere .. „ Average speed in miles per hour.. Actual time in motion .. .. min. Time made up or lost .. .. „ Number of stops Aggregate intermediate stops .. .. min. 57-67 8,663-8 183 16 66 (all clinker and dirt) 200 165 192-4 46-4 50-9 19-35 248 Nil 5 87 58-93 8,663-8 178 194 39 (all clinker and dirt) 200 171 186-4 46-1 45-5 19-35 248 Nil 5 86 69-18 8,663-8 125 280 9S (all clinker and dirt) 175 103 151-3 463 47-4 19-28 249 Host 5 91 61-25 8,663-8 120 242 57 (all clinker and dirt) 175 132 161-3 47-8 54-5 19-35 248 mi 5 87 54-64 8,663-8 51 257 78 (all clinker and dirt) 175 150 169-9 46 49-1 19.35 248 Nil 5 87 53-49 8,663-8 56 246 95 (all clinker and dirt) 200 180 194-3 47-6 522 19-28 249 1 lost 5 88 4573 8 ,663-8 88 152 40 (all clinker and dirt) 170 120 154-7 51-6 51-3 19-35 248 Nil 5 87 55-11 8,6638 58 223 69 (all clinker and dirt) 170 145-7 164-9 50-6 55-2 19-35 248 Nil 5 87 55-07 8,663-8 50 230 50 (all clinker and dirt) 200 150 189-9 48 1 51-8 19-35 248 Nil 5 87 Analysis of Nightcaps Coal — Fixed carbon Hydrocarbon Water Ash Composition. 43-62 33-68 18-33 437

D.—6.

Trial of Locomotives between Invercargill and Gore with Brunner Coal.

4

Type of Engine. Particulars. Baldwin. Class Ub. First importation. Baldwin. Class Ub. Second importation. Baldwin Class Ub. Second importation Baldwin. Class Q. Glasgow. Class Uc. Glasgow. Class Ua. N.Z.E. Class Wa. Baldwin. Class Wd. Baldwin. Class Wd. Size of cylinders .. .. .. in. Clearance of cylinders .. .. .. „ Area of beating-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 8 972 16 187 4 61-25 31 80 24,880 29,780 833,840 16 by 20 s 8 972 16 187 If 4 61-25 28 80 22,472 27,372 766,416 16 by 20 8 full 1,320 16 177 2 4 57-25 28 80 22,472 27,052 757,456 16 by 20 16 1,320 16 177 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 IS 34 37-25 26 80 20,564 23,544 659,232 14 by 20 A 845 17 177 34 43-75 26 80 20,564 24,064 673,792 14 by 20 845 17 177 IS 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 Trains — Invereargill .. .. .. dep. Woodlands Morton Mains .. .. .. arr. Morton Mains .. .. .; dep. Edendale .. .. ..- arr. Edendale .. .. .. dep. Mataura Gore .. .. .. .. arr. Gore .. .. .. .. dep. a.m. 8.40 9.16 9.32 9.42 10.2 10.7 10.33 10.55 11.50 p.m. 12.14 12.26 12.54 12.59 a.m. 8.40 9.17 9.34 9.43 10.5 10.9 10.36 10.55 11.50 p.m. 12.14 12.26 12.54 12.59 a.m. 8.36 9.14 9.30 9.41 10.3 10.8 10.33 10.53 11.50 p.m. 12.13 12.26 12.54 12.58 a.m. 8.38 9.17 9.32 9.42 10.2 10.7 10.33 10.54 11.50 p.m. 12.13 12.27 12.54 12.58 a.m. 8.36 9.13 9,30 9.46 10.7 10.11 10.37 10.56 11.50 p.m. 12.13 12.25 12.55 1.0 a.m. 8.35 9.12 9.30 9.44 10.4 10.9 10.34 10.54 11.50 p.m. 12.14 12.27 12.58 1.2 1.42 1.44 2.17 a.m. 8.40 9.18 9.33 9.42 10.2 10.8 10.34 10.55 11.50 p.m. 12.13 12.30 12.59 1.4 a.m. 8.40 9.19 9.34 9.44 10.4 10.9 10.34 10.55 11.50 p.m. 12.13 12.25 12.57 1.2 a.m. 8.40 9.16 9.33 9.43 10.5 10.11 10.36 10.56 11.50 p.m. 12.13 12.25 12.58 1.8 Mataura .. .. .. arr. Mataura .. .. .. dep. Edendale .. .. .. arr. Edendale .. .. .. dep. Woodlands .. .. .. arr. Woodlands .. .. .. dep. Inveroargill .. .. .. arr. 1.43 2.15 1.42 2.15 1.40 2.15 1.41 2.15 V.41 2.15 i.45 2.20 1.42 2.15 1.42 2.15 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 2,180-97 6-17 2,174-8 9-14 87-41 3-12 2,204-3 8-1 2,196-2 9-13 88-27 5-46 2,230-7 6-2 2,224-5 8-74 98-99 5-56 2,394 7-8 2,386-2 8-75 100 62 4-37 2,344 5-4 2,338-6 8-21 104-07 4-28 2,242-5 6-13 2,236-37 8-34 99-52 4-10 1,897-66 7-58 1,890-08 9-19 91-91 6-18 2,188-2 5-9 2,182-3 8-72 106-12 6-25 2,253-5 4-8 2,248-7 8-09 109-35 6-44

D.—6.

Trial of Locomotives between Invercargill and Gore with Brunner Coal— continued.

Approximate Cost of PajMr.-Preparation, not given ; printing (1,200 copies), .46 3s. 6d.

Authority: John Mackay, Government Printer, Wellington.—l9o3.

Price 6d.]

2—D. 6.

5

'ype of Ingine. Particulars. Baldwin. Class Q. Glasgow. Class Uc. Glasgow. Class Ua. Baldwin. Baldwin. Baldwin. Class Ub. Class Ub. Class Ub. First Second Second importation. importation. importation. N.Z.E. Class Wa. Baldwin. Class Wd. Baldwin. Class Wd. jocomotive Tests : General Results —continued. Water used per square foot of grate - surface lb. per hour running-time Equivalent evaporation per pound of coal from and at 212° P. Weight of coal burned on journey Actual weight of wood used in lighting-up .. Actual weight of coal used in lighting-up .. Total weight of wood and coal used Goal consumed per ton mile of train-load .. Coal used per ton of train per 100 miles Weight of coal consumed per hour Average weight of coal burned per sq. ft. of grate-surface per hour running-time Coal used per train mile Calorimetric value of coal .. .. B.T.U. Weight of ashes taken from ashpan .. lb. Weight of ashes taken from smoke-box Weight of ashes, &c, taken out of firebox .. 131-54 11-19 2,379-7 224 560 3,163-7 0-096 9-56 575-7 14-39 332-08 11-20 2,406-7 224 560 3,190-7 0097 9-67 582-2 36-39 337-73 10-68 2,544 224 560 3,328 0-113 11-32 617-1 3862 360-81 10-70 2,726 224 560 3,510 0-121 12-13 6595 41-22 353-62 1002 2,848-3 224 560 3,632-3 0127 12-67 688-2 43 07 338-16 10-24 2,682-5 224 560 3,4665 0-119 11-94 648-99 40-56 365-82 11-19 2,056 224 336 2,616 0-100 10 497-4 39-79 310-57 10-66 2,501-3 224 336 3,061-3 0-122 12-16 605-1 35-60 320-02 9-91 2,781 224 336 3,341 0135 13-52 672-8 39-58 Maximum boiler-pressure .. lb. per sq. in. Minimum boiler-pressure Mean boiler-pressure throughout journey Mean temperature of feed-water .. deg. P. Mean temperature of atmosphere Average speed in miles per hour.. Actual time in motion .. • • min. Time made up or lost .. ■ • » Number of stops Aggregate intermediate stops .. .. min. 29-75 14,513-75 83 7 100 (all clinker and dirt) 200 178 193-9 48-3 53-6 19-35 248 Nil 30-08 14,513-75 91 96 73 (all clinker and dirt) 200 161 190-3 45-2 46-9 19-35 248 Nil 5 87 31-8 14,513-75 97 76 98 (all clinker and dirt) 175 125 160 46-2 49-6 1938 247 Made up 1 5 92 34-08 14,513-75 66 178 81 (all clinker and dirt) 175 131-7 160 44-7 50-2 19-35 248 Nil 35-6 14,513-75 41 110 88 (all clinker and dirt) 175 133 162-6 47-9 51 19-33 248 Nil 5 91 33-53 14,513-75 40 111 87 (all clinker and dirt) 200 160 187-1 43-9 47-3 19-35 248 Nil 6 94 25-7 14,513-75 45 104 37 (all clinker and dirt) 170 126-3 157-7 49-3 49-1 19-35 248 Nil 5 92 31-26 14,513-75 53 129 61 (all clinker and dirt) 170 136 162-9 46-9 52-4 19-35 248 Nil 5 87 34-76 14,513-75 42 180 67 (all clinker and dirt) 200 153-5 190-4 47-1 50-1 19-35 248 Nil 5 87 5 89 5 87 Analysis of Brunner Coal — Fixed carbon Hydrocarbon Water Ash Composition. 56-21 37-73 1-50 4-56