A shear plate design for an M3 model car worked well as part of a five-car configuration, however it would not suit the M3L car that would feature as part of a 10-car configuration.
We needed to work with the client to re-design the shear plate installation to suit M3L car – particularly with regards to new electrical interfaces and toilet designs.
Key to this was a requirement that the newly designed M3L would be used as a donor car for West Midland based M1L/M2L cars