Commonwealth Railways CA class

Class of former NH G-4a locomotives

4 ft 8+1⁄2 in)Driver dia.73 in (1,854 mm)Length62 ft 4 in (19.00 m)Axle load20 long tons 4 cwt (45,200 lb or 20.5 t)Fuel typeCoalWater cap.5,000 imp gal (22,730 L)Tender cap.9 long tons 0 cwt (20,200 lb or 9.1 t) coalFirebox: • Grate area34.6 sq ft (3.2 m²)Boiler pressure190 psi (1.31 MPa)Superheater:
• Heating area400 sq ft (37.2 m²)Cylinders2Cylinder size22 in × 26 in (559 mm × 660 mm)Valve gearSouthern (CA78), Baker (CA79)

Performance figures
Tractive effort	27,840 lbf (123.8 kN)

Career
Operators	Commonwealth Railways
Number in class	2
Numbers	CA78–CA79
First run	August 1943
Withdrawn	May 1950
Disposition	Both scrapped

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.

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 CA78 was withdrawn in 1945 and CA79 in 1950.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.

References

Notes

^ Fluck, Marshall & Wilson 1996, pp. 42–43.

Bibliography

Fluck, Ronald E; Marshall, Barry; Wilson, John (1996). Locomotives and Railcars of the Commonwealth Railways. Welland, SA: Gresley Publishing. ISBN 1876216018.