Class 37 locomotives growling through Derby station. #class37 #trains #diesellocomotive #britishrailways #railways #trainspotting | Adrian Watson

The sound of a 1960’s class 37 locomotive starting up in the morning. D6700 was the first class 37 built. Seen here at Loughborough Central station on the Great Central Railway | Adrian Watson

The sound of a class 37, English Electric 12CSVT engine ticking over. #trains #diesellocomotive #britishrailways #railways #trainspotting #heritagerailway #class37 #englishelectric | Adrian Watson

🚂 The Mighty Class 40 – The Workhorse of a Generation 🚂 Introduced between 1958 and 1962, the British Rail Class 40 was one of the most recognisable locomotives of the early diesel era. Built by English Electric, these 1-Co-Co-1 monsters delivered over 2,000 horsepower and quickly became the backbone of express and heavy freight services across the network. From storming up the West Coast Main Line to handling prestige expresses like the "Flying Scotsman" and "The Fenman", the Class 40s symbol

🚂 The Mighty Class 40 – The Workhorse of a Generation 🚂 Introduced between 1958 and 1962, the British Rail Class 40 was one of the most recognisable locomotives of the early diesel era. Built by English Electric, these 1-Co-Co-1 monsters delivered over 2,000 horsepower and quickly became the backbone of express and heavy freight services across the network. From storming up the West Coast Main Line to handling prestige expresses like the "Flying Scotsman" and "The Fenman", the Class 40s symbol

🚂 The Mighty Class 40 – The Workhorse of a Generation 🚂 Introduced between 1958 and 1962, the British Rail Class 40 was one of the most recognisable locomotives of the early diesel era. Built by English Electric, these 1-Co-Co-1 monsters delivered over 2,000 horsepower and quickly became the backbone of express and heavy freight services across the network. From storming up the West Coast Main Line to handling prestige expresses like the "Flying Scotsman" and "The Fenman", the Class 40s symbol

A glimpse inside the cab of the first class 37 locomotive built. This was built in 1960 and since entering preservation has been restored to as close to original condition as possible. It is a regular runner on diesel days at the Great Central Railway. | Adrian Watson

🚂 With its distinctive growl and unmistakable presence, the Class 37 Locomotive has become one of the most iconic diesels in British railway history. Introduced in the early 1960s, these powerful Type 3 locomotives worked passenger and freight services across the UK for decades — and many still survive today, beloved by enthusiasts and preserved on heritage lines. 💨 📽️ In my latest video, I dive into the story of the Class 37 — its design, service, legendary nickname “tractors,” and why it co