WAGR X class
The X class were built by Beyer, Peacock & Coy of Manchester, England and Metropolitan-Vickers of Stockton-on-Tees, England from 1954 to 1956. Due to their light axle loads, they were immediately pressed into service around the entire network, they were allocated to express trains despite being designed for goods traffic. Their rigid frames made them rough riders, but because didn't require turning around they were still considered more efficient.