Data from "Transportation Exhibits at the Panama Exposition," Railway Age Gazette, Volume 58, No 9 (26 February 1915, pp. 374-375. See also Alco Pamphlet 10044 "Panama Pacific International Exposition", American Locomotive Company, 1915., pp. 16-19. Works numbers were 54405-54408 in February 1914, 54663 in June, and 55000 in October.
Alco supplied a pair of Mikados to the P-K, but held one back to display at the San Francisco world's fair as an example of recent practice. The small 2-8-2 had piston valves to handle the superheated steam.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 76 |
| Locobase ID | 12965 |
| Railroad | Peking-Kalgan |
| Country | China |
| Whyte | 2-8-2 |
| Number in Class | 6 |
| Road Numbers | 76-79, 75, 80 |
| Gauge | Std |
| Number Built | 6 |
| Builder | Alco-Cooke |
| Year | 1914 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.25 / 4.34 |
| Engine Wheelbase (ft / m) | 30.75 / 9.37 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
| Overall Wheelbase (engine & tender) (ft / m) | 57.98 / 17.67 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 138,500 / 62,823 |
| Engine Weight (lbs / kg) | 186,000 / 84,368 |
| Tender Loaded Weight (lbs / kg) | 110,400 / 50,077 |
| Total Engine and Tender Weight (lbs / kg) | 296,400 / 134,445 |
| Tender Water Capacity (gals / ML) | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 9 / 8 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 58 / 29 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 50 / 1270 |
| Boiler Pressure (psi / kPa) | 180 / 12.40 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 28" / 508x711 |
| Tractive Effort (lbs / kg) | 34,272 / 15545.54 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.04 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 145 - 2" / 51 |
| Flues (number - dia) (in / mm) | 21 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 15.50 / 4.72 |
| Firebox Area (sq ft / m2) | 209.50 / 19.46 |
| Grate Area (sq ft / m2) | 43.60 / 4.05 |
| Evaporative Heating Surface (sq ft / m2) | 1834 / 170.38 |
| Superheating Surface (sq ft / m2) | 368 / 34.19 |
| Combined Heating Surface (sq ft / m2) | 2202 / 204.57 |
| Evaporative Heating Surface/Cylinder Volume | 180.14 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7848 |
| Same as above plus superheater percentage | 9182 |
| Same as above but substitute firebox area for grate area | 44,121 |
| Power L1 | 9125 |
| Power MT | 581.00 |