A fast passenger steam locomotive featuring a four-wheel leading truck, four driving wheels, and a two-wheel trailing truck. The addition of the trailing truck allowed for a wider, deeper firebox behind the driving wheels, which generated the massive amounts of steam needed to sustain high speeds on express passenger runs.
Heard on the job
They used to run an Atlantic on the fast mail train because it could sustain eighty miles an hour across the flats.
Also heard as
- 4-4-2