Class 201 (6S) DEMU
Trailer Open 2nd
The British Rail Class 201 (or 6S) six-car diesel-electric multiple units (DEMUs) were built in 1957-1958 . They were built for the London-Hastings line, with a narrow body profile to accommodate the restricted tunnel loading gauge on that line.
The class 206 3 car unit was created in mid 60s using spare motor coach , trailer 2nd, and EPB driving trailer coach . Nicknamed Tadpoles due to the different width of the Hasting stock and the EPB coach. These were used on the Tonbridge to Guildford line for many years.
In final years, sets were mixed up, and 6S and 6L units sometines run together.
201(6S) formation - DMBSO,TSOL,TFK,TSOL,TSOL,DMBSO
206(Tadpole) formation - DMBSO,TSOL,DTSO
Requires bogies chassis wheels and finishing
O scale (1/43.5 7mm/ft)
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more info about Hastings DEMU here
https://www.bloodandcustard.com/6carhastings.html
more 3d printed models from Recreation21 here
http://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm