Urban Sky
Senior Member
My understanding is that car type „Business 1-A“ (26XX) doesn‘t have a regular diaphragm at the locomotive-facing end and can therefore only be attached to a locomotive. I tried to find a clear photo, but all I could find is whatever this screenshot of a Youtube-video shows at 17:35 minutes:To expand a 5-car set to a 7-car set, Via needs one additional economy car and one business car. That means that three 5-car sets can be reorganized to create two 7-car sets, with one cab car and one locomotive left over.
Meanwhile the two existing 7-car sets can be reorganized into three 4- or 5-car sets with the addition of a locomotive. My understanding is that the LRC and Ren coaches are being retired more urgently than the P42 locomotives, so it should be possible to temporarily delay the retirement of one P42 locomotive until the CN restrictions are resolved.
So yes, assembling two 7-car Siemens sets would reduce the number of Siemens sets by 1. And it might enable the number of legacy sets to be increased by 1. Which overall I would consider to be an improvement since it would enable all 5 sets involved to be immune to CN's restrictions rather than just 2 of the sets currently.
This would only leave 3 of the 5 cars which can be reused as intermediary cars, so you would need to slaughter 2 trainsets for every 3 extended trainsets - which would then have not just different car layouts but even a different number of Business Class
Also, I believe that the contract with Siemens only allows certain configurations, presumably the one which got tested (Note how the additional Business Class car is 27XX and not 26XX):
2311
2811
2911
2906*
2706* business class
2711 business class
2611 business class
2211
Given that Siemens is guaranteeing a certain level of reliability and availability, it would most likely insist on very extensive testing before accepting any deviating configuration which was not explicitly mentioned in the contract.
It really might not be as easy and straightforward as it appears from the sidelines…
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