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EMU Preservation,
Together As One.

Who are we?

The Alternating Current Multiple Unit (A.C.M.U.) Society was formed in 2025 as the formal merger between two railway preservation groups, the Clacton Express Preservation Group and the Class 315 Preservation Society.

The society is the proud owner of Class 315 No. 315856. We also provide restorative support and upkeep for two vehicles of Class 309, No. 309624, and the sole surviving vehicle of Class 317, No. 317345, now owned by the East Anglian Railway Museum in Essex, England, plus the other vehicle of 309624, now based at the Rushden, Higham and Wellingborough Railway.

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Small donations to the units go a long way...

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Become a Member

From as little as £3 a month

Support the ACMU Society by becoming a member with regular monthly donations and receive exclusive news, updates and many more perks.

OUR PARTNERS

Supporting Organizations

We are proud to collaborate and partner with organizations and entities that share our passion for railway preservation and heritage. Together, we work towards promoting the importance of preserving historic railway vehicles and the stories they embody.

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East Anglian Railway Museum

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Llanelli & Mynydd Mawr Railway

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Rushden, Higham and Wellingborough Railway

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More Coming Soon...

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The ACMU Society is the supporting organisation of the ACMU Group C.I.C. C.I.C. number 16268560.

© 2025 by ACMU Society

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