LocomotiveFor the Ruby on Rails application, see Locomotive
(Software). Three body styles of diesel locomotive: cab unit,
hood unit and box cab. These locomotives are operated by Pacific
National in Australia. R class steam locomotive number R707 as
operated by the Victorian Railways of Australia. A Green Cargo
RC 4 class electric locomotive repainted in its original livery
for the Swedish 150-year railway anniversary in 2006. A
locomotive is a railway vehicle that provides the motive power
for a train. The word originates from the Latin loco - "from a
place", ablative of locus, "place" + Medieval Latin motivus,
"causing motion", and is a shortened form of the term locomotive
engine,. first used in the early 19th century to distinguish
between mobile and stationary steam engines. A locomotive has no
payload capacity of its own, and its sole purpose is to move the
train along the tracks. In contrast, some trains have self-
propelled payload-carrying vehicles. These are not normally
considered locomotives, and m