BR Pocket Book 3: Diesel Mulitple Units 2026

The 2026 edition of this definitive Platform 5 guide covers every diesel multiple unit operating on Britain’s national rail network. British Railways Pocket Book 3: Diesel Multiple Units lists all DMUs currently in service, including key details for each unit such as owner, operator, livery, and depot allocation.

The book also provides technical information for every DMU class and a clear overview of how Britain’s railways are structured today. Additional sections cover on‑track machines used for maintenance, Network Rail service DMUs, and units awaiting disposal.

Content is organised into four main sections:

Diesel Mechanical & Diesel‑Hydraulic Multiple Units

Diesel Electric Multiple Units

On‑Track Machines

Codes

This edition has been fully updated to reflect the latest changes to the fleet. It contains 88 pages, including 16 pages of colour illustrations.