| Victorian Railways H class |
|---|
Builder's photograph of H220, 1941 |
|
| Specifications |
|---|
Configuration:
| |
|---|
| • Whyte | 4-8-4 |
|---|
| Gauge | 1,600 mm (5 ft 3 in) |
|---|
| Driver dia. | 67 in (1,702 mm) |
|---|
| Length | 92 ft 5+3⁄4 in (28.19 m) |
|---|
| Axle load | 23 long tons 5 cwt (52,100 lb or 23.6 t) |
|---|
| Adhesive weight | 92 long tons 12 cwt (207,400 lb or 94.1 t) |
|---|
| Loco weight | 146 long tons 10 cwt (328,200 lb or 148.9 t) |
|---|
| Tender weight | 113 long tons 11 cwt (254,400 lb or 115.4 t) |
|---|
| Total weight | 260 long tons 1 cwt (582,500 lb or 264.2 t) |
|---|
| Fuel type | Coal |
|---|
| Fuel capacity | 9 t (8.9 long tons; 9.9 short tons) |
|---|
| Water cap. | 14,000 imp gal (64,000 L; 17,000 US gal) |
|---|
| Firebox: | |
|---|
| • Grate area | 68 sq ft (6 m2) |
|---|
| Boiler pressure | 220 lbf/in2 (1,517 kPa) |
|---|
| Heating surface | 4,760 sq ft (442 m2) |
|---|
| Cylinders | 3 |
|---|
| Cylinder size | 21.5 in × 28 in (546 mm × 711 mm) |
|---|
| Valve gear | Walschaerts
Henschel & Son conjugated valve gear |
|---|
|
| Performance figures |
|---|
| Tractive effort | 55,000 lbf (245 kN) at 85% boiler pressure |
|---|
|
|
The Victorian Railways H class is a heavy express passenger steam locomotive operated by the Victorian Railways from 1941 to 1958. Intended to eliminate the use of double heading A2 class locomotives on The Overland services on the steeply graded Western line to Adelaide, wartime restrictions led to only one locomotive being built. Nicknamed Heavy Harry, H220 was the largest locomotive ever built in Australia and the largest non-articulated steam locomotive to run on Australian railways.
