Every Steam Locomotive Wheel Arrangement in the U.S. Explained

There are dozens of wheel arrangements in the Whyte system, but American railroad history was defined by these nine fundamental designs. In this video, we’ll walk through each category that transformed the U.S., from the small 4-4-0s to the articulated giants. TIMESTAMPS: 00:00 - 4-4-0 American 01:47 - 4-6-0 Ten-Wheeler 03:34 - 2-8-0 Consolidation 05:10 - 4-6-2 Pacific 06:39 - 2-8-2 Mikado 08:07 - 4-8-4 Northern 09:55 - 2-10-4 Texas 11:22 - 4-6-6-4 Challenger 12:47 - 4-8-8-4 Big Boy