Invention and Engineering

4-2-0

Under the Whyte notation for the classification of steam locomotives, 4-2-0 represents the wheel arrangement of four leading wheels on two axles, two powered driving wheels on one axle and no trailing wheels. This type of locomotive is often called a Jervis type, the name of the original designer.

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See also

• ▸Ambient intelligence
• ▸Arthur Evans
• ▸ACE 3000

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