Midi 4-4-2 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class 1920 (Locobase 15169)
Data from Forums LR Presse, email from Patlantic, 26 June 2010, 14:35 posted at [
]. Works number for 1921 was 5633 in 1907.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 1920 |
| Locobase ID | 15169 |
| Railroad | Midi |
| Country | France |
| Whyte | 4-4-2 |
| Number in Class | 14 |
| Road Numbers | 1921-1934 |
| Gauge | Std |
| Number Built | 14 |
| Builder | SACM |
| Year | 1906 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.05 / 2.15 |
| Engine Wheelbase (ft / m) | 27.89 / 8.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.25 |
| Overall Wheelbase (engine & tender) (ft / m) | 49.82 / 15.19 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 39,022 / 17,700 |
| Weight on Drivers (lbs / kg) | 77,382 / 35,100 |
| Engine Weight (lbs / kg) | 152,780 / 69,300 |
| Tender Loaded Weight (lbs / kg) | 81,350 / 36,900 |
| Total Engine and Tender Weight (lbs / kg) | 234,130 / 106,200 |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 64 / 32 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 80.30 / 2040 |
| Boiler Pressure (psi / kPa) | 227.70 / 15.70 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13.39" x 25.2" / 340x640 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 22.05" x 25.2" / 560x640 |
| Tractive Effort (lbs / kg) | 15,912 / 7217.57 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.86 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 172.22 / 16 |
| Grate Area (sq ft / m2) | 33.15 / 3.08 |
| Evaporative Heating Surface (sq ft / m2) | 2325 / 216 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2325 / 216 |
| Evaporative Heating Surface/Cylinder Volume | 566.09 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7548 |
| Same as above plus superheater percentage | 7548 |
| Same as above but substitute firebox area for grate area | 39,214 |
| Power L1 | 8718 |
| Power MT | 496.75 |