The Commonwealth Railways CA class was a class of 4-6-0 steam locomotives purchased by the Commonwealth Railways, Australia, from the New York, New Haven and Hartford Railroad (NH), USA, through Lend-Lease during World War II.
Power typeSteam
Power typeSteam
Build date1905, 1907
Quick facts Type and origin, Power type ...
| Commonwealth Railways CA class |
|---|
 |
|
| Specifications |
|---|
Configuration:
| |
|---|
| • Whyte | 4-6-0 |
|---|
| Gauge | 1,435 mm (4 ft 8+1⁄2 in) |
|---|
| Driver dia. | 73 in (1,854 mm) |
|---|
| Length | 62 ft 4 in (19.00 m) |
|---|
| Axle load | 20 long tons 4 cwt (45,200 lb or 20.5 t) |
|---|
| Fuel type | Coal |
|---|
| Water cap. | 5,000 imp gal (22,730 L) |
|---|
| Tender cap. | 9 long tons 0 cwt (20,200 lb or 9.1 t) coal |
|---|
| Firebox: | |
|---|
| • Grate area | 34.6 ft2 (3.2 m2) |
|---|
| Boiler pressure | 190 psi (1.31 MPa) |
|---|
Superheater:
| |
|---|
| • Heating area | 400 ft2 (37.2 m2) |
|---|
| Cylinders | 2 |
|---|
| Cylinder size | 22 in × 26 in (559 mm × 660 mm) |
|---|
| Valve gear | Southern (CA78), Baker (CA79) |
|---|
|
|
| Career |
|---|
| Operators | Commonwealth Railways |
|---|
| Number in class | 2 |
|---|
| Numbers | CA78–CA79 |
|---|
| First run | August 1943 |
|---|
| Withdrawn | May 1950 |
|---|
| Disposition | Both scrapped |
|---|
|
Close
The two locomotives in the class, CA78 and CA79, had been built in 1907 and 1905, respectively, by Baldwin Locomotive Works, Philadelphia, USA, and had been part of NH's G-4a class.[1] They arrived in Australia in August 1943 and were used on the Trans-Australian Railway. CA78 was withdrawn in 1945 and CA79 in 1950. Both were scrapped in 1956.
