KTM Class 22

The KTM Class 22 is a class of mainline diesel-electric locomotives designed and equipped by English Electric-AEI Traction, with construction by Metro-Cammell, for Keretapi Tanah Melayu in Malaysia. It is a dual cab general purpose locomotive with a full-width body built as a single stress-carrying truss structure designed for a buffing load of 300,000 lbf, with prefabricated cabs welded to the underframe and detachable roof panels with hinged covers for access to components. The cast steel bolsterless bogies were designed by English Electric and have fully equalised primary suspension on helical coil springs, and the AEI-253 traction motors are all mounted on the inner side of each axle. The engine is the 1,760 bhp V-8 version of English Electric RK/V Mk III range, turbocharged and intercooled, which gives a 17 percent increase in power over the 12SVT Mk II engine fitted to the earlier Class 20. In 1995 four locomotives were sent to Morrison-Knudsen in Whyalla, Australia, for rebuilding. After withdrawal in 2010, four were plinthed as exhibits and three were sold to civil engineering contractors, one going to Bangladesh.