4-6-0+0-6-4
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| Equivalent classifications | |
|---|---|
| UIC class | 2C+C2 |
| French class | 230+032 |
| Turkish class | 35+35 |
| Swiss class | 3/5+3/5, 6/10 from 1920s |
| Russian class | 2-3-0+0-3-2 |
| First known tank engine version | |
|---|---|
| First use | 1912 |
| Country | Brazil |
| Railway | Mogyana Railway |
| Designer | Beyer, Peacock and Company |
| Builder | Beyer, Peacock and Company |
Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 4-6-0+0-6-4 is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-6-0 ten-wheeler locomotives operating back to back, with the boiler and cab suspended between the two swivelling power units. Each power unit has two pairs of leading wheels in a leading bogie, followed by three coupled pairs of driving wheels and no trailing wheels.
A similar wheel arrangement exists for Mallet type locomotives, but is referred to as 4-6-6-4. On a Mallet locomotive, only the front engine unit swivels while the rear unit is rigid in relation to the main frame.
This was a rare wheel arrangement for Garratt locomotives, with only seven locomotives built for two South American customers.
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Wikipedia