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Co-Co vs Bo-Bo-Bo

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On 22/07/2021 at 23:25, jim.snowdon said:

I was seconded to Trans-Manche-Link, aka TML, who were the construction contractors for the whole of the tunnel project, including the locomotives and rolling stock.

Most interested to see your note and your commentary on the reasons for the Bo-Bo-Bo selection. I was aware of the primary reasons, since I was the Contracts Engineer for the procurement, again with TML and followed the procurement and development of the locomotives through to completion of the testing and commissioning. 

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On 30/07/2021 at 06:18, Western Aviator said:

I’m no expert on Dutch trains and I don’t make that many journeys through The Netherlands but I can’t say I’ve ever seen these units coupled to anything else. I was quite surprised when I first noticed the wheel arrangement and I don’t know why they thought it necessary. Other NS double-deck EMUs have more conventional wheel arrangements. 


Maybe it's because of all the steep gradients on the NS system.  :jester: :jester: :jester:

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