The 211 series incorporated regenerative brakes and stainless body construction.

The serial units were also not equipped with regenerative brakes.

The regenerative brakes were removed in the late 1940s.

They had a conventional design and regenerative brakes, although the latter was eventually removed.

Up next, let's take a closer look at how regenerative brakes make eco-friendly driving possible.

There was nothing more to test anymore than the regenerative brake.

For this services the regenerative brake was a big advantage.

It will also allow the trains to return more energy to the network through their regenerative brakes.

These trains have regenerative brakes, returning around 20 per cent of their energy to the network.

In a few systems regenerative brakes return some electric energy from the train.