Little Orme Quarry 0-4-2 Locomotives in Great_Britain
Class Details by Steve Llanso of Sweat House Media
Class Garth (Locobase 4877)
Data from Kerr, Stuart & Company's own web page at [
]; and A R Bennett, "Locomotives of the Little Orme Quarry, Llandudno", Locomotive Magazine, Volume XXIII [23] (15 September 1917), p. 185-186. Works numbers included 1257 in 1914.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | Garth |
| Locobase ID | 4877 |
| Railroad | Little Orme Quarry |
| Country | Great Britain |
| Whyte | 0-4-2ST |
| Number in Class | 2 |
| Road Numbers | |
| Gauge | 3'6" |
| Number Built | 2 |
| Builder | Kerr, Stuart & Co |
| Year | 1914 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.75 / 1.14 |
| Engine Wheelbase (ft / m) | 9 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.42 |
| Overall Wheelbase (engine & tender) (ft / m) | 9 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 28,560 / 12,955 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 28,560 / 12,955 |
| Tender Water Capacity (gals / ML) | 324 / 1.23 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 30 / 762 |
| Boiler Pressure (psi / kPa) | 160 / 11 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 15" / 229x381 |
| Tractive Effort (lbs / kg) | 5508 / 2498.39 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 70 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 34.40 / 3.20 |
| Grate Area (sq ft / m2) | 5.42 / 0.50 |
| Evaporative Heating Surface (sq ft / m2) | 252 / 23.42 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 252 / 23.42 |
| Evaporative Heating Surface/Cylinder Volume | 228.16 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 867 |
| Same as above plus superheater percentage | 867 |
| Same as above but substitute firebox area for grate area | 5504 |
| Power L1 | 3071 |
| Power MT | |