Dumb question

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What is the difference between G scale and #1 scale?

Thanks,

Rich F.

[Ray Dunakin]

"G scale" is a complicated subject. Here's the scoop, in a nutshell:

There are many different scales using the same gauge of track. The track is 45mm between the rails, and this gauge is called "No. 1 gauge".

Most LGB, some Bachmann, and a few others are 1:22.5 scale. These are mostly meant to represent narrow gauge trains, but the track scales out to about 3'6". Not a very common gauge in real life, but there were some prototype railroads that used that gauge. And for many folks, it's "close enough" to 3-foot.

Bachmann also makes 1:20.3 scale trains, which accurately represent 3-foot narrow gauge trains. Some other manufacturers also make trains in this scale.

Aristo-craft and USA Trains use 1:29 scale to represent standard gauge trains. The track actually scales out a bit less than true standard gauge, but it's pretty close.

MTH makes trains at 1:32 scale, which is accurate for standard gauge. This is what is commonly referred to as "No. 1 scale".

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Thank you for your detailed explaination.  I guess it wasn't such a dumb question!

Rich F.