Data from DeGolyer, Vol 72, pp. 343+. Works numbers were 57740-57741 in April 1924.
Piston valves measured 10" (254 mm) in diameter and the firebox had 17 sq ft (1.6 sq m) of arch tubes.. This pair of Mikados used exactly the same boiler and grate as the Pacifics shown in Locobase 15293. They were put in class HG after the M&SM was folded into the Indian State in 1957.
Data from "Six 'XD' Class 2-8-2 Locomotives for Madras and Southern Mahratta", Vulcan Magazine, (1948), archived at [], last accessed 24 August 2017. See also [
], last accessed 24 August 2017. Works numbers were 5744-5749 in 1948.
Principal Dimensions by Steve Llanso of Sweat House Media | ||
---|---|---|
Class | 1000/HG | Standard Light Goods/XD |
Locobase ID | 15292 | 20281 |
Railroad | Madras & Southern Mahratta | Madras & Southern Mahratta |
Country | India | India |
Whyte | 2-8-2 | 2-8-2 |
Number in Class | 2 | 6 |
Road Numbers | 1000-1001/37022-37023 | |
Gauge | 5'6" | 5'6" |
Number Built | 2 | 6 |
Builder | Baldwin | Vulcan Foundry |
Year | 1924 | 1948 |
Valve Gear | Walschaert | Caprotti |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 16 / 4.88 | 17.25 / 5.26 |
Engine Wheelbase (ft / m) | 33.92 / 10.34 | 35 / 10.67 |
Ratio of driving wheelbase to overall engine wheelbase | 0.47 | 0.49 |
Overall Wheelbase (engine & tender) (ft / m) | 62.92 / 19.18 | 66.67 / 20.32 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 36,000 / 16,329 | 38,080 / 22,500 |
Weight on Drivers (lbs / kg) | 144,000 / 65,317 | 151,984 / 68,939 |
Engine Weight (lbs / kg) | 186,000 / 84,368 | 219,296 / 99,471 |
Tender Loaded Weight (lbs / kg) | 142,980 / 64,855 | 147,504 / 66,907 |
Total Engine and Tender Weight (lbs / kg) | 328,980 / 149,223 | 366,800 / 166,378 |
Tender Water Capacity (gals / ML) | 6600 / 25 | 5400 / 20.45 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 11 / 10 | 14.55 / 13 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 60 / 30 | 63 / 31.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 56.50 / 1435 | 61.50 / 1562 |
Boiler Pressure (psi / kPa) | 180 / 12.40 | 180 / 12.40 |
High Pressure Cylinders (dia x stroke) (in / mm) | 22" x 28" / 559x711 | 22.5" x 28" / 572x711 |
Tractive Effort (lbs / kg) | 36,698 / 16645.95 | 35,265 / 15995.95 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.92 | 4.31 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 114 - 2.25" / 57 | 116 - 2.25" / 57 |
Flues (number - dia) (in / mm) | 24 - 5.5" / 140 | 26 - 5.5" / 140 |
Flue/Tube length (ft / m) | 20.50 / 6.25 | 18.46 / 5.63 |
Firebox Area (sq ft / m2) | 168 / 15.61 | 214 / 19.88 |
Grate Area (sq ft / m2) | 48 / 4.46 | 45 / 4.18 |
Evaporative Heating Surface (sq ft / m2) | 2245 / 208.57 | 2165 / 201.14 |
Superheating Surface (sq ft / m2) | 612 / 56.86 | 540 / 50.17 |
Combined Heating Surface (sq ft / m2) | 2857 / 265.43 | 2705 / 251.31 |
Evaporative Heating Surface/Cylinder Volume | 182.24 | 168.02 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 8640 | 8100 |
Same as above plus superheater percentage | 10,454 | 9720 |
Same as above but substitute firebox area for grate area | 36,590 | 46,224 |
Power L1 | 11,823 | 11,591 |
Power MT | 724.03 | 672.54 |