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AAR control stand on an EMD DDA40X; Other EMD models are similar. A control stand is a diesel-electric locomotive subsystem which integrates engine functional controls and brake functional controls, [1] whereby all functional controls are "at hand" (within reach of the locomotive engineer from their customary seating position, facing forward at all times). [2]
The earliest locomotives, such as Stephenson's Rocket, had no cab; the locomotive controls and a footplate for the crew were simply left open to the elements. However, to protect locomotive crews against adverse weather conditions, locomotives gradually came to be equipped with a roof and protective walls, and the expression "cab" refers to the cabin created by such an arrangement.
An EMD SD40 A-unit owned by BNSF Railway. An A-unit, in railroad terminology, is a diesel locomotive (or more rarely an electric locomotive) equipped with a driving cab and a control system to control other locomotives in a multiple unit, and therefore able to be the lead unit in a consist of several locomotives controlled from a single position. [1]
The LMS twins 10000 and 10001 used the design and later locomotive types such as the British Rail Class 37, and British Rail Class 40 utilised cab units but the term "cab unit" is not used in Britain. The Class 37 and Class 40, like most British diesel and electric locomotives, has a cab at each end.
In 2017, NCDOT started a Cab Control Unit (CCU) program using ex-GO F59PHs. [9] These are used on the Piedmont. In 2023, Amtrak began testing a former HHP-8 locomotive as a cab car with the aim of supplementing or replacing the existing ex-Metroliner cab cars until the Airo fleet arrives. [10] As of July 2024, eight total conversions are planned.
The bodies of the DE30AC and the DM30AC are extremely similar; the difference is the ability of the DM30AC to use electric third rail while the diesel engine is off, enabling the locomotive to use the East River Tunnels into New York Penn Station. This permits direct service from non-electrified lines in eastern Long Island via the western ...
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The Class 73 locomotives were very versatile, with dual cab controls; three brake systems (vacuum, air and EPB) as detailed below; a well-designed cab with good sighting that aided shunting; the ability to work fitted freight (fully braked) and unfitted freight (no train brakes) as well as locomotive-hauled coaching stock; the ability to work ...