Clyde/GM 2450 Class
The 2450 class was introduced in 1979 as an evolution of the 2400 class, adding air-conditioning, aluminium cabinet doors and upgraded generators. Eighteen were built by Clyde, numbered 2450 to 2467, and they went into service from May 1979. Like the 2400s they worked general freight around Queensland, and before electrification they were the regular power at the Gregory mine in the Bowen Basin.
2467 was withdrawn in 1989 and scrapped, and the other seventeen were all rebuilt at Redbank Workshops between 1999 and 2002 as members of the 2300 class, so the 2450 class no longer exists in its original form.
References
'Queensland Railways 2450 class', Wikipedia (accessed October 2026)
'Queensland Railways 2300 class', Wikipedia (accessed October 2026)
Technical details
| Model Number | GL22C-2 |
|---|---|
| Builder | Clyde Engineering/Comeng Rocklea |
| Locomotive Numbers | 2450-2467 |
| Number in Class | 18 |
| Introduced | 1979 |
| Gauge | Narrow Gauge (1,067mm or 3' 6") |
| Axles | Oº-Oº-Oº Oº-Oº-Oº Co-Co |
| Length | 18.04m |
| Mass | 90t |
| Engine | EMD 12-645E |
| Generator/Alternator | EMD AR6-G-D14 |
| Traction Motors | EMD D29 |
| Power | 1119kW / 1500HP |
| Starting Tractive Effort | 224kN @ 30% adhesion |
| Continuous Tractive Effort | 226kN @ 14km/h |
| Speed | 100km/h (60mph) |
Class roster
18 of 18 locomotives
| 2450D | 79-915 | 22/05/1979 | - | - | Rebuilt as 2300 class 2355 |
| 2451D | 79-916 | 8/06/1979 | - | - | Rebuilt as 2300 class 2356 |
| 2452D | 79-917 | 30/07/1979 | - | - | Rebuilt as 2300 class 2357 |
| 2453 | 79-918 | 6/08/1979 | - | - | Rebuilt as 2300 class 2360 |
| 2454D | 79-919 | 6/09/1979 | - | - | Rebuilt as a 2300 class locomotive |
| 2455 | 79-920 | 19/09/1979 | - | - | Rebuilt as 2300 class 2366 |
| 2456D | 79-921 | 2/10/1979 | - | - | Rebuilt as a 2300 class locomotive |
| 2457 | 79-922 | 23/10/1979 | - | - | Rebuilt as a 2300 class locomotive |
| 2458 | 79-923 | 19/11/1979 | - | - | Rebuilt as a 2300 class locomotive |
| 2459 | 79-924 | 3/12/1979 | - | - | Rebuilt as 2300 class 2363 |
| 2460 | 79-925 | 9/01/1980 | - | - | Rebuilt as 2300 class 2364 |
| 2461 | 79-926 | 6/02/1980 | - | - | Rebuilt as a 2300 class locomotive |
| 2462D | 80-946 | 17/03/1980 | - | - | Rebuilt as 2300 class 2370 |
| 2463 | 80-947 | 8/04/1980 | - | - | Rebuilt as 2300 class 2371 |
| 2464D | 80-948 | 1/05/1980 | - | - | Rebuilt as a 2300 class locomotive |
| 2465D | 80-949 | 27/05/1980 | - | - | Rebuilt as 2300 class 2372 |
| 2466D | 80-950 | 13/06/1980 | - | - | Rebuilt as 2300 class 2373 |
| 2467 | 80-951 | 25/06/1980 | 25/08/1989 | Oct-89 | Withdrawn 1989 and scrapped |