A style of early diesel locomotive where the structural frame is integrated into a smooth, full-width body shell. Unlike hood units, which have external walkways, a cab unit requires the crew to walk through the engine room to move from front to back. They were heavily favored for early passenger and freight service due to their aerodynamic styling.
Heard on the job
They have a matched pair of cab units pulling the excursion train this weekend.
Also heard as
- car-body