HO gauge scale model trains are the most purchased model trains in the world. You can get a vast selection of ready-to-run sets of rolling stock, engines, and scenery in different brands. In particular, HO gauge model trains come in different levels of product quality. Some HO gauge scale model train sets much better brand quality than other HO scale model trains. A lot of HO gauge scale model train sets has low quality. In contrast, certain HO scale model train set manufacturers focus on making low cost HO model trains to the mass market of scale toy trains, instead of to the more discerning end of the collector and hobbyist HO gauge model train market.
Complementing these train sets are railroad scale model trains that come in different scales which can satisfy the desires of certain toy railroad collectors. The tiniest scale model trains have cars and engines which may be just one inch or couple of inches long as the larger scale model train sets have engines and cars that are a meter in length. Even grander scale model trains can be large enough to be ridden.
Scale model trains first utilized the term gauge regarding the distance between the rails, as full-size railway systems use, when real transport railway systems state the standard measurement of their rails in the railway system. In modern days, it is more usual for “scale” to be the term employed to refer to the size of the of the toy railroad. As such, the term “scale” solely relates to sizing of the of the toy railroad, and the nomenclature gauge exclusively concerns the measure in between each rail.
Railway toy railroad scales have been standard over the world thru many electric hobby groups. A wide range of the model train set scales are recognized globally, while lesser known model train scales are less widely used and in many cases are almost unknown outside where they originated. Railroad model train set scales can be put forward in a size ratio or in a letter specified within model train criteria, for example: G scale model trains, HO toy railroads such as HO gauge model train buildings, N gauge or N scale toy railroads, O gauge train sets, OO gauge model trains, S scale model trains, and Z scale model trains. Incidentally, the most frequently used size are the HO scale model train sets.
The first model trains did not get made with any specific scale, size, or ratio. These were more like toys instead of miniature examples of the real transportation railroads. Over time, the realness of scale model train sets increased and standardization of particular model train set scale, ratio, and size increased. The standardization of train set track guage made interchangeability possible. Despite the fact that model trains are modeled at a reduced ratio, size, or scale, these scale toy railroads aren’t exactly proportional. For many of the standard scales of model trains, the scale, ratio, and size might not be implemented for each component of the scale model train. Because of the requirements of strength and durability, some parts of the toy model train could be constructed bigger than appropriate size.
Modern high volume fabricating processes give rise to scale model train sets with significant realism and precision. Modern scale model trains may come with toy train engines; toy train specialty train cars; toy train roads, tracks, and signals; and even toy train layout figures, vehicles, and buildings plus toy train layout canyons and streams. Train set scale model train tracks can vary from simplistic oval train tracks and circular train tracks to complex train track layouts of real or imaginary localities.
Electric toy railroads were introduced around about the turn of the twentieth century. Electric scale toy railroads most often use DC voltage electricity. Electric train sets allowed variable speed control. Many modern scale model trains use computer controls with the industry standard control and command system called scale model train set DCC — Digital Command Control.