The British Rail Class 93 was a proposed class of 250 km/h (155 mph) electric locomotives intended for use on the West Coast Main Line as part of British Rail's InterCity 250 project in the late 1980s and early 1990s. The project aimed to modernize and electrify the line to allow for faster and more frequent passenger services.
The Class 93 was envisioned as a powerful and advanced locomotive, designed to haul Mark 5 coaches. Key features included three-phase AC traction motors, advanced signalling and control systems, and a modern design aesthetic. The intention was to replace the aging Class 86 and Class 87 locomotives and provide a significant upgrade in performance and reliability.
The InterCity 250 project, and consequently the Class 93 locomotive, was ultimately cancelled following the privatization of British Rail in the mid-1990s. The planned electrification upgrades and the development of the new rolling stock were deemed too costly and were abandoned. While the Class 93 locomotives were never built, the project served as a blueprint for some of the technologies and concepts later adopted in subsequent high-speed rail developments in the UK. Some elements of the proposed Mark 5 coaches were later incorporated into the Mark 5A sets used with the Class 92 locomotives on the Channel Tunnel sleeper services.