The British Rail Class 25 – Britain’s Unsung Diesel Workhorse 🚆 Built between 1961 and 1967, the British Rail Class 25, also known as the Sulzer Type 2, became one of the most important diesel locomotives of the British Rail era. Reliable, versatile, and found almost everywhere, these locos handled everything from heavy freight to passenger services — including the famous summer Saturday holiday trains to Aberystwyth. Often overshadowed by larger and more glamorous classes, the Class 25 quietly