The Booster, or B-unit, was once a staple of most diesel-powered American trains throughout the mid-20th century. They were cheaper cabless variants of their A-unit counterparts, and meant to supply extra horsepower. Steam locomotives were still more powerful than the diesel, but the diesel was far cheaper and more flexible. But what happened to the boosters? Why don't we see them on freight and passenger trains anymore?

Music:
OMORI - I Think My Dad Shops Here
Deltarune - Dialtone
Super Mario RPG - And My Name's Booster
OMORI - Finding Shapes in the Clouds
Deltarune - My Funky Town
Deltarune - Green Room
Deltarune - Girl Next Door
Deltarune - Game Main Theme (Piano Sketch)

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