How can it be the same if it is 25sm lower? I cant understand it! Please, find more drawings. I'll stop untill then.
Well, you see, this was a pretty typical thing about Italian buses until some time ago: the constructor created the basic technology (chassis, engine, suspension etc) and usually (but not always) proposed a bodywork for it; then, lots of independent firms proposed their own bodywork and interiors for that same chassis, and transport companies chose the one which suited their needs best.
I can understand it might sound a bit uncommon, but that's the way it worked here. You saw it with the 421 too, for which there were actually five or six available bodywork styles (even more than the ones we put in the set). So the constructor introduced the chassis, then suddenly many other firms produced particular variants, and each company purchased the one it thought was the best one.
I'm not making up things; if you don't believe me, I'll translate some lines I found on a webpage:
«In 1956 was introduced [the model] which would become the basis of Italian public transportation, used in many cities and towns. Its name was FIAT 411, built in many versions and furbished by many bodywork-producing firms: it was 11 meters long. There was even the 18 meter articulated version, with a vertical overpowered engine, owned by Turin's public transport company [where I got the drawings from]. It was even proposed as a trolleybus under the name of 2411». (You can find the page at
http://www.filotram.it/new-autobus/sto-4-aut.htm, I translated the last bit of text).
So, you see, it's kind of a cultural thing. Maybe it sounds uncommon elsewhere, but here it was kind of the rule... by the way, you'll see that the two drawings come from the same source (Turin's public transport company): those two models were variants of the same bus, furbished by two different bodywork-producing firms (Cansa for the single and Seac-Viberti for the articulated), and so with differences in the number of axles, length, and height. Nevertheless, it'd make perfect sense to have them both available in TTD as "refit" variants, as they were simultaneously produced and used (by the same transport company!). It works the same way as for the four variants of the Fiat 421
I thought it'd be cool to add those two to your set, as you've got drawings and pics. The articulated 411 was produced by Seac only, so there's no need for more drawings (they'd be the same as the one you've got): and I frankly doubt I could find drawings for other bodywork variants of the single 411, as the one I found is quite rare itself (the bus is very old). If I could find a drawing of another variant, tho, it'd surely show different heights or windows/door schemes.
You see, as for most Italian buses, there wasn't "The" 411, but different variants of it. It'd be cool to have the articulated Seac and the single Cansa used in Turin.
If you wanna see other variants, there's a bunch of pics in the attachment. Three of them refer to the 411; they show two other bodywork variants, one built by Menarini, and the other built by Cansa (later called Cameri) for the Milan fleet (you'll notice the central door was larger than it was in the drawings). As you see, the Menarini looks quite different; it's the same bus (same chassis, same engine etc) with a different bodywork. Judging from the pics, I'd say its height should be lower than 3200 mm's too. That's how it worked here

The remaining pics show the 2411, the trolleybus variant of the 411. As you see, there were many variants built on that chassis.
It's still true now, to a smaller extent, as in Milan we've got modern Mercedes O405 buses furbished by a local firm (called Macchi); here's a pic of it
http://www.ferrovie.ch/milanotrasporti/ ... _marzo.jpg
I hope my explanation was understandable enough.
Snail wrote:
I'd say stick to the measures you found in the drawings, as they're original data.
But how can I draw it? 30sm is a whole pixel, and it is much in TTD's scale
Well, the articulated was lower in reality. It's up to you, maybe making them look the same height would make the models look better.
The engine was the same, but as the articulated bus was heavier, they tweaked its engine in order to get some more hp out of it. I think they acted on the highest rpm (the engine ran faster). Once we get the needed callbacks, we could give the articulated variant a bit more power.
That makes it to break more often?
Yeah
I'll use two-colour scheme; may be one part would be in company colours.
Ok. Would it be possible to draw two shades of company colors? A lighter and a darker one?
Yes.
Nice! So we could have a company-colored bus with the upper part in a lighter tone of the same color.