British Rail Class 937 facts for kids

The British Rail Class 937 was a special type of train used by British Rail. These trains were once regular electric trains that carried passengers. However, they were later changed and given new jobs to help maintain the railway lines.

What is the British Rail Class 937?

The British Rail Class 937 trains were not for passengers. Instead, they were known as "departmental units." This means they worked for the railway company itself, doing important tasks to keep the tracks safe and running smoothly. They were like the railway's own team of special-purpose vehicles.

From Passenger Trains to Special Workers

Originally, the trains that became the Class 937 were electric multiple units (EMUs). These are trains made up of several carriages that can run together, powered by electricity. They used to carry people from one place to another. But over time, some of these older EMUs were no longer needed for passenger services. Instead of scrapping them, British Rail decided to give them a new life. They were converted, or changed, to do different kinds of work on the railway.

What Jobs Did Class 937 Trains Do?

The Class 937 trains were very versatile. They could be adapted for various important jobs. Their main roles included spreading a special material called sandite and acting as powerful "tractor units" to move other trains.

Spreading Sandite: Helping Trains Grip

One of the key jobs for some Class 937 units was applying sandite. You might wonder, what is sandite? It's a special mixture, often containing sand and other sticky materials. Trains spread sandite onto the tracks, especially during autumn. Why? Because fallen leaves on the tracks can get crushed and create a slippery, greasy layer. This makes it hard for train wheels to grip the rails, which can cause delays or even make it difficult for trains to stop. Sandite helps to clean the rails and improve the grip, making train journeys safer and more reliable.

Acting as Tractor Units: Pulling Power

Other Class 937 trains were used as "tractor units." Imagine a powerful truck that pulls heavy trailers. A tractor unit train does a similar job on the railway. These trains were strong enough to tow or pull other trains. This was useful for many reasons. For example, they could move trains that had broken down, or shift new trains around a depot before they were ready for service. They provided the muscle needed to move railway equipment that couldn't move on its own.

Why Were These Special Trains Needed?

These departmental trains were essential for keeping the railway network in good condition. By converting older passenger trains, British Rail could save money and reuse valuable equipment. The Class 937 units played a quiet but vital role behind the scenes, ensuring that passenger and freight trains could run safely and efficiently every day. They were a great example of how old equipment can be given a new purpose to serve the railway.