Minho e Douro 0-6-0 Locomotives in Portugal
Class Details by Steve Llanso of Sweat House Media
Class 21 (Locobase 9702)
Data from [
], last accessed 30 November 2008. Also see "Locomotives of the Minho and Douro Railway, Portugal,"The Locomotive Magazine, Vol VIII (13 June 1903), pp. 409-410.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 21 |
| Locobase ID | 9702 |
| Railroad | Minho e Douro |
| Country | Portugal |
| Whyte | 0-6-0 |
| Number in Class | 12 |
| Road Numbers | 21-32 |
| Gauge | 5'6" |
| Number Built | 12 |
| Builder | Beyer, Peacock |
| Year | 1875 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 77,162 / 35,000 |
| Engine Weight (lbs / kg) | 77,162 / 35,000 |
| Tender Loaded Weight (lbs / kg) | 44,092 / 20,000 |
| Total Engine and Tender Weight (lbs / kg) | 121,254 / 55,000 |
| Tender Water Capacity (gals / ML) | 1848 / 7 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 43 / 21.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 111.70 / 7.70 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.39" x 24.02" / 467x610 |
| Tractive Effort (lbs / kg) | 15,123 / 6859.69 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.10 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 172 - 1.772" / 45 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 16.57 / 1.54 |
| Evaporative Heating Surface (sq ft / m2) | 1220 / 113.40 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1220 / 113.40 |
| Evaporative Heating Surface/Cylinder Volume | 165.21 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1851 |
| Same as above plus superheater percentage | 1851 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |