Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Under the Whyte notation for the classification of steam locomotives, 4-6-0 represents the wheel arrangement of four leading wheels on two axles in a leading truck, six powered and coupled driving wheels on three axles, and no trailing wheels. This wheel arrangement became the second-most popular configuration for new steam locomotives in America in the mid-19th century. In the United States this type is commonly called a ten-wheeler. Other equivalent classifications are: UIC classification: 2C (also known as German classification and Italian classification), French classification: 230, Turkish classification: 35, Swiss classification: 3/5. The first 4-6-0 built in America was the Chesapeake. It was built by Norris in March 1847 for the Philadelphia and Reading railroad.