Data from "2-ft, 6-in Gauge Locomotive for the United Alkali Company, Ltd", The Locomotive Magazine, Volume XX [20] (15 December 1914)), p. 308
LM comments that this design was "probably one of the largest locomotives ever built for such a confined space" as the Spanish mines owned by this British company.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Tejon |
| Locobase ID | 20304 |
| Railroad | United Alkali |
| Country | Spain |
| Whyte | 0-4-0ST |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | 2'6" |
| Number Built | 1 |
| Builder | WG Bagnall |
| Year | 1914 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.67 / 1.12 |
| Engine Wheelbase (ft / m) | 3.67 / 1.12 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 3.67 / 1.12 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 16,800 |
| Engine Weight (lbs / kg) | 16,800 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 120 / 0.45 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.11 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 14 / 7 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 24.50 / 622 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 7.5" x 12" / 191x305 |
| Tractive Effort (lbs / kg) | 3747 / 1699.61 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.48 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 58 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 5.50 / 1.68 |
| Firebox Area (sq ft / m2) | 21 / 1.95 |
| Grate Area (sq ft / m2) | 3.16 / 0.29 |
| Evaporative Heating Surface (sq ft / m2) | 166 / 15.42 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 166 / 15.42 |
| Evaporative Heating Surface/Cylinder Volume | 270.54 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 506 |
| Same as above plus superheater percentage | 506 |
| Same as above but substitute firebox area for grate area | 3360 |
| Power L1 | 2886 |
| Power MT | 757.44 |