When they send units from Mainland European factories to Britain by train how often does the locomotive change? Is it one locomotive all the way there? Or do these change locomotives at Coquelles or Cheriton or somewhere? Also are the barrier wagons changed as well when a locomotive change happens?
Interesting topic... I've been looking into the Railadventure Class 777 movements to try and figure it out.
The haulage arrangements are no doubt influenced by the different electrification / signalling systems as per posts #17 and #18.
Railadventure have a varied fleet as a result, with most of the classes listed here alongside example photos:
https://commons.wikimedia.org/wiki/Category:RailAdventure
There's also a stock list here:
https://german87ac.com/railadventure-fleet-register/
My knowledge of European routes and loco types is limited, but this appears to be the general arrangement that was used for the Class 777 deliveries (with the 555 deliveries from Switzerland being similar).
The use of locos in Europe is fairly economical, with a single loco taking the units from either Poland or Switzerland to the German / French border at Saarbrucken / Stiring-Wendel, then another loco taking the units across France to Calais Frethun. The channel tunnel and UK side ends up being more convoluted, with 92s the only loco they can use through the tunnel, but the DB 92s no longer able to use the third rail system through Kent. 43s were also not allowed on the route to Dollands Moor (at least at the time the 777s were on delivery, not sure if that restriction still applies) requiring 66 haulage to Wembley before the changeover to Railadventure's own class 43s. The 555 unit moves to Pelaw are of course now using class 20 haulage throughout from Dollands Moor...
For the 777 deliveries, I think the route from Poland (the Siedlce factory is east of Warsaw) was very roughly via Wroclaw - Gorlitz (German border) - Dresden - Leipzig, then avoiding Belgium by heading to the French border near Saarbrucken.
From the Swiss Stadler factory at St. Margrethen, the Railadventure movements appear to head west towards Basel, crossing into Germany and following the Rhine towards Karlsruhe / Mannheim and then Saarbrucken (again, that's a very rough approximation of the route).
Loco types and route to UK:
For class 777 units built in Poland:
>Railadventure Class 183 ? (at least it looks like one in this going-away shot) from Siedlce (Poland - Stadler factory) to Saarbrucken (Germany, near French border)
Unit 777007 is hauled by what appears to be a graffitied Railadventure class 183, as train 43428 from Siedlce to Saarbrucken on 16/05/20
https://www.flickr.com/photos/147893510@N05/49937520802/ (Photo: Torsten Liermann)
For class 777 (and 555) units built in Switzerland:
>Railadventure Class 111 (or Class 620) from St. Margrethen (Switzerland - Stadler factory) to Saarbrucken
D-RADVE 111210-1 hauls a class 777 towards Saarbrucken through Kaiserslautern, Germany (08/05/20)
https://www.flickr.com/photos/43432994@N03/49873261026/ (Photo: Roland Martini)
Then from Saarbrucken:
>Railadventure DE 18 diesel from Saarbrucken to Calais Frethun
4185 011-1 F RADVE with Swiss-built 777004 running as 40480 Saarbrucken - Calais Frethun (12/05/20)
https://www.flickr.com/photos/186724478@N05/49890675857/ (Photo: Railbox22390)
>DB Class 92 from Calais Frethun to Dollands Moor through the channel tunnel
>DB Class 66 from Dollands Moor to Wembley
66172 hauls 777019 / 777023 / 777031 built in Poland on 6Q14 Dollands - Wembley 30/08/23
https://www.flickr.com/photos/136510631@N08/53153494538/ (Photo: Brian Creasey)
>Railadventure Class 43s from Wembley to Warrington:
43465 + 43484 with 777019 / 777023 / 777031 built in Poland on 6Q77 Wembley yard - Warrington Walton Old Jn MSC sidings on 30/08/23.
https://www.flickr.com/photos/139404814@N05/53155240834/ (Photo: Brian Carter)
>Movements to Kirkdale depot have involved class 20s, 43s, 56s, 66s... with units also moving to and from Crewe for modifications e.t.c.
43468 + 43480 deliver 777150 + 777152 as 6Q77 Walton MSC Sdgs - Kirkdale 01/10/23
https://www.flickr.com/photos/45021513@N08/53227030205/ (Photo: Alan Hart)
So the current situation for the 555 deliveries appears to use 2 locos within continental Europe, a 92 through the tunnel, then the 20s to Pelaw (so 5 locos involved in total, with loco changes at Saarbrucken, Calais Frethun and Dollands Moor).
Also are the barrier wagons changed as well when a locomotive change happens?
In the case of Railadventure, the coupling adaptor wagons (the Habfis IWA vans) will normally stay coupled to the unit until final delivery. The flat wagons with weights (Sfps / IGB) used for brake force might get slightly rearranged depending on requirements (for example if a consist with 2 or 3 units is split) but they also do the full journey through Europe and into the UK, being internationally registered and passed for UK / tunnel use.
I remember some of the Desiro movements from Germany used to employ FIA intermodal flats, which must have had a coupling adaptor at one end, and usually conveyed loaded containers with ballast weights to increase the brake force. Those used to stay with the unit until delivery, then the 2 wagons would be coupled together to go back to Germany to collect another unit. They were often fairly distinctive and can be seen in some of the photos linked in my previous post.
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A couple of rather nice scenic images of Railadventure class 620 locos on Stadler unit moves:
Near Keiserstuhl (Germany) in April 2020:
https://www.flickr.com/photos/187346654@N08/49827201448/ (Photo: Stefan Schulthess). Appears to be a small 2-axle flat wagon on the back; not one that would come through the tunnel.
Near Schwaderloch (Switzerland), also in April 2020:
https://www.flickr.com/photos/187346654@N08/49827201528/ (Photo: Stefan Schulthess)
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Finally, an example of a recent Railadventure Stadler 555 move through France with a DE18 loco. I love the way google translate phrases the caption - it's not just a train, it's a friendly convoy!
https://www.flickr.com/photos/192430235@N04/54552540996/ (Photo: Raphael S.)
It was under abominable weather, combining strong winds and non-stop rain, that the long-awaited train arrived at Coulogne for Calais-Fréthun.
A RailAdventure DE 18 was pulling a friendly convoy consisting of two Millet Rail DE 18s and two lovely new Stadler metro trains for Newcastle. Specifically, Stadler British Rail Class 555s (555 035 and 016). 27/05/25