Wellington Gas 0-4-0 Locomotives in New_Zealand
Class Details by Steve Llanso of Sweat House Media
Class 1 (Locobase 14041)
Data from Stephen Cook's [
], last accessed 2012; see in particular the reprint of "Wellington Gas Works Railway," New Zealand Railway Observer (August 1963), pp. 13-. Works numbers were 1265 in 1911 and 1752 in 1921.
For 606 pounds, the Gas Works bought a conventional steam locomotive to pull their trains of Newcastle (New South Wales) coal from the Gas Works to the Miramar Wharf . In addition, the company ordered 10 hopper cars to carry 5 long tons of coal each on the 95-lb/yard (47.5-kg/metre) rail. Because New Zealand and Barclay's works lay half a world apart, it wasn't until late the next year that the 1 was ready for testing on 7 December 1912.
The 1 had a copper firebox and brass tubes, but its 1921 duplicate had a steel firebox and steel tubes. The tandem ran until 1939, when the gas company resorted to locally mined coal that was delivered by trucks. They were scrapped in 1954.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 14041 |
| Railroad | Wellington Gas |
| Country | New Zealand |
| Whyte | 0-4-0T |
| Number in Class | 2 |
| Road Numbers | 1-2 |
| Gauge | 4' |
| Number Built | 2 |
| Builder | Andrew Barclay |
| Year | 1911 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4 / 1.22 |
| Engine Wheelbase (ft / m) | 4 / 1.22 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4 / 1.22 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 22,400 / 10,160 |
| Engine Weight (lbs / kg) | 22,400 / 10,160 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 22,400 / 10,160 |
| Tender Water Capacity (gals / ML) | 120 / 0.45 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 19 / 9.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 25 / 635 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 7.5" x 12" / 191x305 |
| Tractive Effort (lbs / kg) | 3672 / 1665.59 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.10 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 21.50 / 2 |
| Grate Area (sq ft / m2) | 3.60 / 0.33 |
| Evaporative Heating Surface (sq ft / m2) | 132 / 12.26 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 132 / 12.26 |
| Evaporative Heating Surface/Cylinder Volume | 215.13 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 576 |
| Same as above plus superheater percentage | 576 |
| Same as above but substitute firebox area for grate area | 3440 |
| Power L1 | 2602 |
| Power MT | 512.18 |