main-line locomotive

main-line locomotive

[′mān ‚līn ‚lō·kə′mōd·iv]
(mining engineering)
A large, high-powered locomotive which hauls trains of cars over the main haulage system.
References in periodicals archive ?
The CN-led group expects to conduct engine laboratory tests in 2013 and to roll out the prototype main-line locomotives for road tests in 2014.
The engines, which are replicas of big main-line locomotives, make you think you are traveling in Lilliput.
In addition, our new main-line locomotives produce approximately 40 per cent less nitrogen oxides than older locomotives and consume up to 20 per cent less fuel.
Since 1995 all new main-line locomotives ordered by CPR have been equipped to operate in leading or remote-control configuration.