Just curious. From my perspective, 1:120 scale is an ideal size, but I came up short recently when I tried to locate information about it. I was denied admission to the Yahoo TT group (I have no idea why, my request to join was not acted upon in the required period of time), so that avenue to information is closed to me.
Is the scale alive today? Or, is it dying a slow death? I was curious about whether or not TT practitioners use such items as N scale track (for handlaying) and N scale couplers, and so on.
Any information about the gauge would be welcome. Thanks much.
For a long time it looked like S and TT were dead. S has revived very nicely in the last several years, both S and Sn3. But TT does seem to be pretty much inactive in the USA. My recollection is that most TT these days is European and that European and American (NMRA) TT are not compatible, so that the Rokal TT you sometimes see for sale is not compatible with the HP products TT that was fairly common at one time.
This web site http://www.ttscale.com/ has infornation. One of the main suppliers is out for a year building a new house. Even though it was invented here, it’s most popular in Eastern Europe. The scale is really a nice size for someone who wants a 4x8 layout but with the trains bigger than N scale.
As others have noted, TT still has a following and commercial support in Europe, but there are also modellers in the UK who are active in the scale. They have a society that produces parts, standards, etc.
There are a few TT ready-to-run models out there, mostly European prototype. A few other kits and models around, but not a lot. A few structure kits, but mostly European prototype. Preiser does some figures. I haven’t found too many vehicles.
I model New Zealand railways in 1:120 TT scale. The prototype here is 3’6" (1067mm) narrow gauge, so we use N-scale track components, loco meccanisms, couplers etc. Technically our scale/ guage combinations is called TTn3.5, but we also call it NZ120.