Hey Guys,

I occasionally see on the front of Locomotive Boxes things like "K-Line O Scale 1/4"    or "Bachman Williams O Scale 1/4".

What in the world does the "1/4" mean, when O Scale is 1/48??

Thanks,

Mannuyrock

Original Post

This terminology is common especially amount doll houses modelers It means one quarter inch equals one foot

Manny,

Here's another way to look at it:

Looking at it from the prototype (real trains) -- 1/48 means 48 times smaller than the real thing.  It's in feet.  1 foot on your layout equals 48 feet in the real world.

Looking at it from the model (O scale trains) -- 1/4 means that one foot in the real world occupies 1/4" on your layout.  It's in inches.

The arithmetic (tying both together) -- 1/48   x  12 inches per foot = 1/4"

Mike

O Scale is proportioned 1:48, expressed as 1 to 48.    The scale is 1/4 inch per foot.    There are 4 x 12 1/4 inches in a foot,    4x12 is 48.   You probably should not see it expressed as 1/48, but 1:48.

Thanks very much for the explanations.

Mannyrock