Explaining the Popularity of HO Scale Trains

When it comes to model railroading, enthusiasts have a wide range of choices, especially when it comes to scale. There are at least five main groups of scales, with a number of non-standard options as well. With all these options, how did HO-scale come to dominate the modeling landscape? In order to discover this, we'll look at the different scales available as well as some of the history of model railroading.

When it comes to model trains, nothing matches the size of G-scale trains. These are the largest, and often the most expensive trains available. They can range in size from 1:32 scale upwards to 1:4 scales. Most G-scale trains are used in outdoor settings and are often called garden-scale railroads. Some of these trains are so big that people can actually ride them. Many amusement parks across the globe utilize these trains as rides for guests.

The second largest trains are the O-scale trains. In the U.S., they are a standard 1:48 ratio. In several other countries, you can find ratios ranging from 1:64 up to 1:42. Until the 1960s, these were the most popular of all train types.

Half the sizes of O-scale trains are HO. These types measure a standard 1:87 scale and are the most popular types of model trains, with over 50 manufacturers producing trains world-wide. Around the mid-1960s, these types of trains took over as the king of model railroading.

After O-scale, we find N at 1:160 scale. This means that these trains are just barely more than half the size of HO. At this size, most enthusiasts are probably more interested in the total layout and not solely focused on the train. At an even smaller size, we have Z-scale trains. These miniscule items measure a mere 1:220 scale against their real-life counterparts. Such small trains enable model railroaders the ability to have impressively detailed layouts in confined spaces.

Besides these, enthusiasts can find trains in all sorts of sizes. In the early days of model railroading there was no standard scale which often led to mismatched rolling stock, incompatibility between makers and a lot of poorly proportioned items. As time passed and model trains evolved from toys into a serious hobby, enthusiasts demanded higher quality and more realism from manufacturers.

As the different gauges and scales developed, model railroaders began showing their preferences for certain sizes over others. O-scale trains emerged as the reigning kings of popularity and remained so for several decades. In the 1930s, HO scale trains began appearing in the United Kingdom as an alternative to the currently popular OO scale. Although HO trains gained modest popularity in the U.K., they became rising stars in America. So much so, that by the 1960s, HO trains were the most accepted types of trains available.

There rise in popularity and firm establishment as the leader in model railroading came from several reasons. Firstly, its smaller size allowed hobbyists to plan more complete and elaborate layouts in smaller areas. Their smaller size allowed smaller and narrower tracks, which translated into tighter curves. It's the perfect size to allow plenty of detail without over-complicating things. For folks with poor vision, big or unsteady hands, HO scale is just about the perfect size.

Secondly, because of its pleasing aesthetics and ease of handling, enthusiasts and manufacturers began flocking to HO-scale trains in increasing numbers. This resulted in a massive increase in rolling stock, tracks and scenery which were easily interchanged with other manufacturer's products. In both America and continental Europe, HO trains continue to dominate the market, although England still claims OO gauge as its favorite. The final result is that HO allows a good balance between the level of detail available and the amount of space required.