ALCo 4-6-6-4
Built by ALCo
Overview of the ALCo 4-6-6-4
Explore the powerful 4-6-6-4 steam locomotive, a marvel of engineering built by ALCo between 1936 and 1944.
This impressive steam engine boasts a gauge of 1435 mm and can reach speeds of up to 70 km/h, showcasing the technological prowess of its era.
Its unique 4-6-6-4 Whyte notation signifies an articulated design that allowed for a significant tractive effort of 433 kN, making it ideal for heavy hauling.
A captivating piece of railway history, the 4-6-6-4 is a must-see for any steam locomotive enthusiast.
ALCo 4-6-6-4 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | ALCo · 1936–1944105 units | |
| Top speed | 70 km/h43 mph | |
| Tractive effort | 433 kN97,342 lbf | |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| Whyte notation | 4-6-6-4 |
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