The WAGR RA class was an English Electric-built 3'6" 1967mm gauge diesel-electric locomotive class operated by the Western Australian Government Railways (WAGR) - a development from the NG R class and SG K class. The engine is the EE 12CSVT delivering 1950 flywheel bhp and 1795hp 1340kW into the EE 822-16JJ main generator for traction, powering six EE 548 traction motors.

By 1972, WAGR had acquired 13 of these slightly longer units that were not fitted with dynamic brakes. The RA class units weighed 92.5 ton 94.5t with a 16t nominal axleload.

In 1974, three of the last RA class members (nos RA1914, 1917 and 1918) were converted to standard gauge to meet traffic needs, and were redesignated as KA class locomotives, nos KA211 - KA213.

Max speed: 60mph 96km/h

Sources: Wikipedia, John Cleverdon's Locopage database