South Manchurian 2-6-2 Locomotives in China
Class Details by Steve Llanso of Sweat House Media
Class SMR Pure-2 / PL-2 (Locobase 4824)
[
] considers this to be a shortened version of the Japanese-built JF6 Mikados. He gives the building dates as between 1941-1945. Nozawa (village.infoweb.ne.jp/~fwbal1433/zh2/epl2248.html) says they were used on the Manchurian coal lines for light freight and switching duties.
Brian Cotterell -- [] (7 Nov 2004) -- offers a very useful discussion of just how confusing the history of the class may be. In particular, he describes the evidence for a further batch of PL-2s in the late 1950s, but concludes: "Unless more information comes to light, we may never know the true origin of these engines."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | SMR Pure-2 / PL-2 |
| Locobase ID | 4824 |
| Railroad | South Manchurian |
| Country | China |
| Whyte | 2-6-2 |
| Number in Class | 20 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 20 |
| Builder | Nippon Sharyo |
| Year | 1935 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.64 / 2.94 |
| Engine Wheelbase (ft / m) | 25.36 / 7.73 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
| Overall Wheelbase (engine & tender) (ft / m) | 59.77 / 18.22 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 122,640 / 55,629 |
| Engine Weight (lbs / kg) | 152,320 / 69,091 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 4756 / 18.02 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 68 / 34 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 188.50 / 1300 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19.68" x 27.95" / 500x710 |
| Tractive Effort (lbs / kg) | 32,119 / 14568.95 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.82 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 39.70 / 3.69 |
| Evaporative Heating Surface (sq ft / m2) | 1818 / 168.96 |
| Superheating Surface (sq ft / m2) | 448 / 41.64 |
| Combined Heating Surface (sq ft / m2) | 2266 / 210.60 |
| Evaporative Heating Surface/Cylinder Volume | 184.75 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7483 |
| Same as above plus superheater percentage | 8980 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |