TT scale trains and models

Got bored and decided to fix this photo. Spread it around!

Rob M wrote:Got bored and decided to fix this photo. Spread it around!

Your HOn3 track gauge is wrong. It is 10.5mm or closer to 13/32".

Bill Dixon
TT-Tracks

OK, fixed again.

I just used what was in the original photo.

Hmmm...
Z, N, and HO are all metric scales; nominal gauges are...
Z gauge = 6.5mm
N gauge = 9.0mm
HO guage = 16.5mm

On30 is 1:48 scale on HO track... so also 16.5mm

It seems to me it is an error in HOn3 gauge.
You specified the HOn3 and HO gauges both as 5/8"
As I know, HOn3 should be 10.5 mm (0.413 in) according to NMRA and 9mm (0.354 in) according to NEM (H0e, European standart)

You could also add T-scale.
1:450, gauge 3 mm (0.118 in)
Available (so far) only for 3 ft 6 in gauge prototypes.
It would be 1:480 if used for normal gauge prototypes.
:)

Is it sad that I have an example of each of the above scales/gauges?

AngrySailor302 wrote:Is it sad that I have an example of each of the above scales/gauges?

No, but it does make me sad that I don't

Well, I was going to create a new photo from scratch but I don't understand why O is shown larger than On30 if they are both 1:48. Same with HO/HOn3, shouldn't they be the same? I understand the track is narrower but shouldn't the locos be the same height.

Rob M wrote:

AngrySailor302 wrote:Is it sad that I have an example of each of the above scales/gauges?

No, but it does make me sad that I don't

Between my wife (G, On30, N and Z) and myself (O, HO, HOn3, HOn30, HOn20 and TT) we have everything but S-Scale.
I may buy an S-Scale car kit for completeness.

Rob M wrote:Well, I was going to create a new photo from scratch but I don't understand why O is shown larger than On30 if they are both 1:48. Same with HO/HOn3, shouldn't they be the same? I understand the track is narrower but shouldn't the locos be the same height.

Although the scale is the same, On30 is O-Scale narrow gauge. Narrow gauge cars and locomotives are smaller than standard gauge equipment. Consider Sn3 - S-Scale, 3 foot gauge. Many people like this scale/gauge combination because the smaller equipment is about the same size as HO Scale.

Bill Dixon
TT-Tracks

So basically they wouldn't normally run something like a 4-8-4 Northern on narrow gauge, just smaller stuff like an 0-6-0?

If that's the case how would one know what sizes to use for a scale size chart? My plan was to start with G scale at ~500 pixels high and then scale the others down from there.