Data from Burma Railways locomotive diagrams posted on Flicker by Florian Grupp, last accessed 3 March 2012.
Slender-barrelled Belpaire boiler that used the BESA standards.
NB: All heating surface areas are estimates. The diagram shows only the total heating surface including superheater. Because it also shows tube and flue counts, diameters, and lengths, Locobase calculates the other figures, but cannot confirm them. He estimates the total combined heating surface as 770 sq ft.
Data from "James Nasmyth's Centenary," The Locomotive Magazine, Vol XIV (15 December 1908), p. 209-211.
NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | Ks | unknown |
| Locobase ID | 13918 | 10674 |
| Railroad | Burma Railways | Burma Railways |
| Country | Burma | Burma |
| Whyte | 4-6-0 | 4-6-0 |
| Number in Class | ||
| Road Numbers | ||
| Gauge | Metre | Metre |
| Number Built | ||
| Builder | Nasmyth Wilson | |
| Year | 1906 | |
| Valve Gear | Walschaert | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 12 / 3.66 | 12 / 3.66 |
| Engine Wheelbase (ft / m) | 21.08 / 6.43 | 21.08 / 6.43 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.57 | 0.57 |
| Overall Wheelbase (engine & tender) (ft / m) | 43.15 / 13.15 | 43.14 / 13.15 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 22,176 / 10,059 | 19,600 / 8890 |
| Weight on Drivers (lbs / kg) | 60,480 / 27,433 | 58,016 / 26,316 |
| Engine Weight (lbs / kg) | 79,520 / 36,070 | 75,880 / 34,419 |
| Tender Loaded Weight (lbs / kg) | 57,940 / 26,281 | 61,320 / 27,814 |
| Total Engine and Tender Weight (lbs / kg) | 137,460 / 62,351 | 137,200 / 62,233 |
| Tender Water Capacity (gals / ML) | 2220 / 8.41 | 2220 / 8.41 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 7.70 / 7 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 | 32 / 16 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 48 / 1219 | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 180 / 1240 | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22" / 381x559 | 15" x 22" / 381x559 |
| Tractive Effort (lbs / kg) | 15,778 / 7156.79 | 15,778 / 7156.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.83 | 3.68 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 90 - 1.75" / 44 | 177 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | 12 - 5.25" / 133 | |
| Flue/Tube length (ft / m) | 11.82 / 3.60 | 11.83 |
| Firebox Area (sq ft / m2) | 100 / 9.29 | 108 / 10.04 |
| Grate Area (sq ft / m2) | 15.33 / 1.42 | 16 / 1.49 |
| Evaporative Heating Surface (sq ft / m2) | 1062 / 98.70 | |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1062 / 98.70 | |
| Evaporative Heating Surface/Cylinder Volume | 236.02 | |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2759 | 2880 |
| Same as above plus superheater percentage | 2759 | 2880 |
| Same as above but substitute firebox area for grate area | 18,000 | 19,440 |
| Power L1 | 5127 | |
| Power MT | 584.48 | |