Here is the exact answer to the question: 'What is TT scale train?'.
TT scale is a model railroading scale that uses models built at a specific size ratio and running on a particular track width.
According to the provided reference, TT scale (which stands for "table top") is a model railroading scale at 1:120 scale with a track gauge of 12 mm between the rails. This places it as an intermediate size within the wide world of model trains.
Key Characteristics of TT Scale
Based on the definition, the essential features of TT scale are:
- Scale Ratio: The models are built at a ratio of 1:120. This means every inch or centimeter on the real-life train corresponds to 1/120th of that measurement on the model.
- Track Gauge: The distance between the inner edges of the rails on TT scale track is 12 mm.
Where TT Fits
TT scale is specifically positioned in the model railroading hierarchy. The reference states that It is placed between HO scale (1:87) and N scale (1:160).
- HO scale (1:87): This is one of the most popular scales globally. TT scale models are smaller than HO models.
- N scale (1:160): Known for its compactness, N scale allows for extensive layouts in smaller spaces. TT scale models are larger than N scale models.
This intermediate size means TT scale offers a balance, allowing for more detail than N scale but requiring less space than HO scale.
Here's a comparison based on the information provided:
| Scale | Ratio | Track Gauge | Relative Size |
|---|---|---|---|
| HO | 1:87 | (Not specified in ref) | Larger than TT & N |
| TT | 1:120 | 12 mm | Between HO and N |
| N | 1:160 | (Not specified in ref) | Smaller than HO & TT |
In summary, a TT scale train refers to a model train built to the 1:120 scale that runs on track with a 12 mm gauge, occupying a niche size category between the larger HO scale and the smaller N scale.
