The HO Model Train
The HO model train came onto the scene in the 1930’s. How the name came about is a story in itself. A model train built in Germany around 1900 was called the 0 (zero) gauge or scale. At the time it was put on the market, the numbers 1-6 were in use by larger models, so it seemed appropriate to say it was less. The terms of gauge and scale were always confusing.
People began to call the scale an O rather than zero, and it eventually stuck. The British version of O was slightly different in scale from the original, at 1:43.5. O was the most popular scale of model train at the time the HO appeared, so the manufacturers felt it appropriate to make it half the size of the O, so the name literally stands for “Half O.” The size of the train was set at half of the Great Britain version of O at a scale of 1:87.
The HO was not that popular when it first appeared, but it gained a following in the 1950’s when model trains were very popular. Throughout the years, most manufacturers of this scale built a good product, and many of the older versions are still in running condition. Some inferior models marketed in the 1970’s were not true to scale.
Today the HO is the most popular scale of model train in the world. England is the only exception, where the 00 gauge is the top pick. Most of the models made run on a 16.5-millimeter gauge track. The size affords a rather nice setup in an area no more than 3 feet by 8 feet, allowing the layout to remain assembled between uses.
The HO is large enough for scenery items to carry detail while the setup is rather compact. Due to the popularity of the scale, it is very easy to find rolling stock and ready-made scenery items. Most of the model train manufacturers carry these items in stock, and there are many aftermarket suppliers, as well.
A large number of HO trains run on the two-rail track with DC power, but the three-rail AC powered train is also popular. Most recent models come with Digital Command Control, so they can be computer programmed.
Not every manufacturer utilizes the same gauge of track in this scale, so buyers have to check the compatibility of any future tracks they buy. Other than the 16.5 mm of the original trains, there are variations of HOm and Hon3. If the clerk knows the model and brand of train, he will usually know the right gauge of track that you need.
Because of the popularity of the scale, the accessories owners purchase to enhance their systems are usually very affordable. All the major model builders carry this size, so a person can locate just about anything he or she may need for the setup.
The HO model train is a good size for most home setups, and has history of good performance.
