cncproadwarrior
North of the 49th
For that matter, what do the letters for each gauge mean?

Half O, or it used to be...
Phil
According to my urban dictionary, that is incorrect.![]()
According to my urban dictionary, that is incorrect.![]()
Johnny, you are so mean.![]()
Really Jim, I'm just easily entertained
And you are right, I've always been under the impression that it stood for "half-O".Johnny
According to Marklin who was the first manufacturer of HO it did stand for half oh.
Originally the scales were numeric.
Gauge 4: not sure
Gauge 3: 2 1/2" scale
Gauge 2: not sure
Gauge 1: 1:32
Gauge 0: (zero not oh) 1:48 ish works to 7mm = 1'
Gauge 00: (later double oh) 1:76.2
Gauge 000: (treble oh, close to N) 1:152 (US N is 1:160)
HO: 1:87.1 works to 3.5mm= 1' so exactly half O.
Yep you're right of course. I was trying to simplify to avoid mass confusion. There are actually 4 different ratios for O dependent on US, UK, Europe. Don't forget O-27 too. OO is also different between the US and UK. There is also US N, UK N, European N, Treble O, and finescale 2mm. It goes on, and on, and on, and on...............Just as a matter of clarification, the original European 0 Gauge was approximately 1/43.5 scale. The 1/48th scale (1/4" to the foot) is American O, which came much later and only after an extended battle with the 17/64ths hobbyists, circa 1940-50. It is from the original 0 Gauge that H0/HO (which first appearred in the 1920's) was derived.
NYW&B
Back in the days of the really big scales (1 scale, 2 scale, 3 scale) Lionel came out with a new scale which half the size of 1 scale and was termed as 0 (zero) scale. Modelers quickly dubbed it O scale and the name stuck. Of the other three scales, 1 scale is still around and is fairly universally known as Large scale or G scale. 2 scale and 3 scale are still around but are way too big to have in the home and can quickly gobble up acreage for a descent run.I never was sure how the term O guage was invented.
We have a couple on the south side of town. Thanks for the laugh!
I think that one went waaaaaaaaaaay over their heads....
Johnny
Back in the days of the really big scales (1 scale, 2 scale, 3 scale) Lionel came out with a new scale which half the size of 1 scale and was termed as 0 (zero) scale. Modelers quickly dubbed it O scale and the name stuck. Of the other three scales, 1 scale is still around and is fairly universally known as Large scale or G scale. 2 scale and 3 scale are still around but are way too big to have in the home and can quickly gobble up acreage for a descent run.
Yep you're right of course. I was trying to simplify to avoid mass confusion. There are actually 4 different ratios for O dependent on US, UK, Europe. Don't forget O-27 too. OO is also different between the US and UK. There is also US N, UK N, European N, Treble O, and finescale 2mm. It goes on, and on, and on, and on...............![]()
http://www.nmra.org/beginner/scale.html
These people seem to feel happy about the "half" O designation, although they point out that the actual dimensions have been changed a bit.