The 2450 class was a class of diesel locomotives built by Clyde Engineering, Eagle Farm for Queensland Railways in 1979-1980. History The 2450 class were an evolution of the 2400 class. They differed in having air-conditioning, aluminium cabinet doors and upgraded generators. Between 1999 and 2002, seventeen were rebuilt as 2300 class locomotives at Redbank Railway Workshops. References Clyde Engineering locomotives Co-Co locomotives Diesel locomotives of Queensland Queensland Rail locomotives Railway locomotives introduced in 1979 Diesel-electric locomotives of Australia 3 ft 6 in gauge locomotives of Australia