Southern Railway 2-BIL EMU
The Southern Railway 2-BIL electric multiple units were built during the 1930s to work long-distance semi-fast services on the newly electrified lines from London to Eastbourne, Portsmouth and Reading. They survived in British Rail ownership long enough to be allocated TOPS Class 401.
The different batches were broadly similar, though in the first one, the driving motor brake car had a smaller brake compartment and seven full compartments, rather than six-and-a-half in the later batches.
Last set withdrawn in 1971. One set is preserved.
Driver Trailer composite(later batches)
Requires chassis and finishing
Scale N (1/148)
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more info about the 2-BIL here
https://en.wikipedia.org/wiki/British_Rail_Class_401
more 3d printed models from Recreation21 here
http://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm