Why is an electric train called a dog? - briefly
The term "electric dog" or simply "dog" for an electric train originates from the early days of electrification when these trains were often used for shunting and other non-passenger services. Over time, this colloquial term became widely accepted in railway jargon, reflecting their versatile and robust nature.
Why is an electric train called a dog? - in detail
The term "electric dog" for an electric train is rooted in the early history of railway technology and colloquial language used by railroad workers. In the late 19th and early 20th centuries, as electrification of railways began, the new electric locomotives were often referred to as "electric motors" or simply "electrics." The nickname "dog" emerged from a blend of practicality and humor among railway personnel.
The first significant use of the term "dog" in this context can be traced back to the London Underground, where early electric trains were introduced. These new trains were designed to operate on the District Line, which was initially referred to as the "Dog's Line." This designation stemmed from the fact that the line passed through areas with a high concentration of kennels and dog breeding facilities. Over time, the term "dog" became colloquially associated with the electric trains themselves.
Another contributing factor was the distinctive sound made by these early electric trains. Unlike their steam-powered counterparts, which produced a steady chuffing noise, electric trains emitted a higher-pitched, intermittent whine that some railroad workers likened to the bark of a dog. This auditory similarity further reinforced the use of "dog" as a nickname for these trains.
Furthermore, the term "electric dog" was also used in a playful and affectionate manner by railway enthusiasts and employees. It served as a way to differentiate the new electric trains from the traditional steam locomotives, which were often referred to as "iron horses." This contrast added an element of whimsy and familiarity to the industrial language of railroading.
In summary, the term "electric dog" for an electric train is a product of historical context, practical association with areas known for dogs, auditory similarities, and the playful nature of railway jargon. This nickname has persisted in some circles as a testament to the rich heritage and cultural nuances within the railroad industry.