Answer
Jun 05, 2024 - 08:26 AM
In model trains, "O" refers to a specific scale and gauge, typically 1:48 in the United States and 1:43.5 in Europe and the UK. The term "O gauge" originally denoted track spacing of 1.25 inches (31.75 mm) between the rails, making it larger than HO or N scales, and it is popular for its durability and detail.
