2-4-4? |
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- This article is about the steam locomotive type. For the football formation see Formation (football).
In Whyte notation, a 2-4-4 is a steam locomotive with two unpowered leading wheels followed by four powered driving wheels and four unpowered trailing wheels.
The equivalent UIC classification is 1'B2'.
This type of locomotive was one of the more common configurations for Mason Bogie locomotives, like those used on the Boston, Revere Beach and Lynn Railroad.
Rail stub icon |
locomotive |
| Steam locomotive types |
| Single engine types |
| 0-2-2, 2-2-0, 2-2-2, 2-2-4, 4-2-0, 4-2-2, 4-2-4, 6-2-0 |
| 0-4-0, 0-4-2, 0-4-4, 2-4-0, 2-4-2, 2-4-4, 4-4-0, 4-4-2, 4-4-4 |
| 0-6-0, 0-6-2, 0-6-4, 2-6-0, 2-6-2, 2-6-4, 4-6-0, 4-6-2, 4-6-4 |
| 0-8-0, 0-8-2, 2-8-0, 2-8-2, 2-8-4, 4-8-0, 4-8-2, 4-8-4, 6-8-6 |
| 0-10-0, 0-10-2, 2-10-0, 2-10-2, 2-10-4, 4-10-0, 4-10-2 |
| 0-12-0, 2-12-0, 2-12-2, 2-12-4, 4-12-2 |
| 4-14-4 |
| Duplex engine types |
| 4-4-4-4, 6-4-4-6, 4-4-6-4, 4-6-4-4 |
| Mallet (articulated) types |
| 0-4-4-0, 0-4-4-2, 2-4-4-2 |
| 0-6-6-0, 2-6-6-0, 2-6-6-2, 2-6-6-4, 2-6-6-6, 4-6-6-4 |
| 2-6-8-0 |
| 0-8-8-0, 2-8-8-0, 2-8-8-2, 2-8-8-4, 4-8-8-2, 4-8-8-4 |
| 2-10-10-2, 2-8-8-8-2, 2-8-8-8-4 |