List of largest locomotives List List

| name_ | railway | series | maker | dates | drive | wheel_arrangement | weight | power_ | notes_ |
|---|---|---|---|---|---|---|---|---|---|
| Union Pacific Coal GTEL | Union Pacific | 80 (later 8080) | Union Pacific Omaha Shops | 1961 | Diesel-Electric + Gas Turbine-Electric | A1A-A1A+2-D-D-2 | 728 t | 7,000 horsepower (5,220 kW) (2000hp Diesel + 5000hp turbine) | Home-built experimental coal-fired gas turbine. Assembled from ALCO PA-1 UP #607, GN W1 #5018, and the tender from Challenger #3990. 215 feet (66 m) overall length; 1,457,280 pounds (661,011 kg) total weight. Unsuccessful; set aside in 1964 and scrapped in 1968. |
| H220 | Victorian Railways | H Class | Victorian Railways / [Newport Workshop] | 1941–1958 | 220 PSI Steam Boiler, 3 Cylinder | 4-8-4 | 265t | 3,600 HP / 2,680KW coal fired steam locomotive (50 mph) with 245KN tractive effort. | The most powerful steam locomotive, at the time built in, Australia. 1 Built. Preserved at Newport, Victoria |