Dinner tomorrow?
  David Coverdale

Is there a TDU catch up tomorrow now that things have opened up?


On Wed., 17 Nov. 2021, 2:14 pm TP, historyworks@...> wrote:

> I think it's an extreme stretch to say that Alstom and CAF have something

> * serious * in their catalogues to offer Melbourne, with the exception of

> the open question of whether Alstom will allow any Bombardier designs to

> survive. I don't think there is any need or possibility to develop an

> Australian-designed tram when there are plainly suitable models for

> Australian operations available in the catalogues of other European tram

> manufacturers. The better angle would be to organise local assembly of

> whichever one of these wins a tender. The main issue is mandatory open and

> competitive tendering, so it's not possible to "enforce" a standard tram

> either within one state or across Australia. More important for the

> commissioning body to have a detailed specification and performance

> standards laid out in the tender.


> I did a media search on Skoda in Germany because I haven't heard of any

> issues as mentioned by Matthew. The German tram market is going gangbusters

> for them and I know of no problems with the push-pull train for Bavaria

> (similar versions of which have also been operating in Czech Republic and

> Slovakia), other than a development delay. It has received homologation for

> the whole of Germany. I think covid disrupted entry to service, which has

> also happened with many projects.



> https://www.globalrailwayreview.com/news/74854/skoda-transportation-high-speed-germany/


> Tony P

> On Wednesday, 17 November 2021 at 09:38:54 UTC+11 Mal Rowe wrote:


>> On 17/11/2021 08:01, Matthew Geier wrote:

>> > If Melbourne stands fast on its requirement to have rotating bogies,

>> > both Alstom and CAF do have something to put forward. It's going to

>> > come down to if fleet engineering calls the shots or treasury.


>> I think that it is very likely that Melbourne will stick with its

>> requirement.


>> Melbourne learnt the hard way that not controlling tram selection is a

>> bad idea - although the Citadis and Combino trams never ended up off the

>> tracks for extended periods.


>> Even the 'successful' C2s are restricted to one route with minimal

>> vertical curvature.


>> As has been said so many times - and over many decades - it would make a

>> lot of sense to have an Australian standard tram - at least in terms of

>> the basic chassis and drive train configuration.


>> I'm not holding my breath for that one!


>> Matthew: Your photo of a CAF bogie shows the way it connects to the tram

>> body through closely spaced springs.


>> See: https://tdu.to/m/263305


>> I suspect that the cracks shown in the various pictures and described as

>> being around the 'wheel arch' are in fact around the tramcar chassis

>> where it attaches to the springs. It would be subject to enormous stress

>> due to the twisting of the springs.


>> Mal Rowe - who only did a couple of mechanical engineering subjects at



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