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Slug (railroad)
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In railroading, a slug is a version of a diesel–electric locomotive which lacks a prime mover and often a cab. It derives the electrical power needed to operate its traction motors and motor controls
Low-profile slug behind a full-sized diesel–electric. It has no cab or prime mover, though some slugs retain their cabs.
Low-profile slug behind a full-sized diesel–electric. It has no cab or prime mover, though some slugs retain their cabs.
In contrast, a B unit has both a prime mover and traction motors, but never a cab.
In contrast, a B unit has both a prime mover and traction motors, but never a cab.
A cabbed slug (CSXT No. 2354) leading its mother
A cabbed slug (CSXT No. 2354) leading its mother
SNCF Class 030 DA (then C 61000) yard locomotive and a TC 61100 yard slug
SNCF Class 030 DA (then C 61000) yard locomotive and a TC 61100 yard slug
Tender (rail)
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A tender is a special rail vehicle hauled by a steam locomotive containing its fuel and water. Steam locomotives consume large quantities of water compared to the quantity of fuel, so their tenders ar
Slug (railroad)
…haulage. It usually retains dynamic braking, a feature useless at the low speeds encountered in switching service, and it may be equipped to serve as a fuel tender for an attached mother locomotive. In operation, it is used to provide extra traction at low speeds. As speed increases it is disconnected from the…
Sierra Railway No. 3 tender
Sierra Railway No. 3 tender
A British SE&CR O1 class runs tender-first at the Bluebell Railway
A British SE&CR O1 class runs tender-first at the Bluebell Railway
Cutaway cross section showing a Spanish tender designed for fuel oil. Green areas hold water and brown areas hold fuel oil. There is a special arrange
Cutaway cross section showing a Spanish tender designed for fuel oil. Green areas hold water and brown areas hold fuel oil. There is a special arrangement to prevent sloshing around during the movement of the train.
SNCF 241P Class with 34P bogie tender, being filled from a water crane (Nantes Blotterau, France, August 1969)
SNCF 241P Class with 34P bogie tender, being filled from a water crane (Nantes Blotterau, France, August 1969)