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

Class 37 locomotives 37175 and 97302 leaving Derby station. #class37 #diesellocomotive #railway #trains #trainspotting #railroad | 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