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Cab

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UP Centennial control stand

The driver's cab of a EMD DDA40X diesel locomotive.

The cab, crew compartment, driver's compartment or sometimes even footplate of a locomotive is the part of the locomotive housing the train driver or engineer, the fireman or driver's assistant (secondman) (if any), and the controls necessary for the locomotive's operation.
Electric Locomotive Cab

An electric locomotive cab.

Cab LocationsEdit

On steam locomotives, the cab is normally located to the rear of the firebox, although steam locomotives have sometimes been constructed in a cab forward configuration. A few locos had "camel-back" or "Mother Hubbard" style cabs positioned in the center of a boiler due to excessively wide fireboxes which prevented the cab from being located at the rear of the boiler.  These locos often burned anthracite.

The cab, crew or driver's compartment of a diesel or electric locomotive will usually be found either inside a cabin attached to a hood unit or cowl unit locomotive, or forming one of the structural elements of a cab unit locomotive.

Typical FeaturesEdit

The inside of a steam locomotive contains the controls, firebox hatch doors, crew seats, and small walk space to the tender or bunker.

In addition to the locomotive controls in a diesel locomotive; a cab will typically be fitted with windshields, side windows, crew seats, heating, and someti
Steam Locomotive Cab view

The inside of a steam locomotive cab.

mes radios, air conditioning and toilets. (Same with most electric locomotives.)

In Europe, many modern locomotives are cab units with two cabs, one at each end. However, the locomotives powering some high speed European trains are normally cab units with one cab, and European shunting/switching locomotives are usually "hood" units.

The size of cabs varies in North America for all types of diesel or electric locomotives. Hence, the "standard" cab consists of having a narrow hood with a narrow short nose, which was once the standard and main form of cab; while the "wide-nose" (not wide-cab; the cab is the same width) is the safer, sleeker, more efficient cab used for locomotives, which has actually become the new form of standard cab.

SourcesEdit

The forums at railroad.net (Better views of the inside of cabs)

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