2 6 6

In the Whyte notation for describing steam locomotive wheel arrangement, a 2-6-6 is a locomotive with a two-wheeled leading truck, six driving wheels, and a six-wheeled trailing truck. All the locomotives produced of this arrangement have been tank locomotives, and the vast majority in the United States. It was a popular arrangement for the larger Mason Bogies, as well as some of the largest suburban tank locomotives.

Contents

• Review mth ho allegheny steam locomotive h8 2 6 6 6
• Lionel c o 2 6 6 2 mallet
• Equivalent classifications
• References