AUSTRIAN infrastructure manager ÖBB Infrastructure has unveiled the first of 18 Servicejet tri-mode rescue trains. Stadler is supplying the new rescue and firefighting fleet, which will be stationed at tunnel portals and deployed to assist firefighters anywhere on the network. The contract is worth €230m.

Each 68m Servicejet three-car multiple-unit has a top speed of 160km/h and an electric hybrid drive system that can run on power supplied by overhead electrification (2.98MW), batteries (280kWh) and diesel engines (0.79MW). It can rescue up to 300 people or move a loaded train weighing up to 2000 tonnes to a position of safety.

The vehicle has two different extinguishing systems for firefighting. The first operates at high pressure (100 bar) for generating a fine spray mist. The second operates at standard pressure (10 bar) for traditional firefighting. The Servicejet can carry 40,000 litres of water and 1200 litres of foam concentrate. The extinguishing systems are mounted at the front of the train.

Two roof-mounted jet fans at both ends of the Servicejet spread the high-pressure water mist. They can also be used during evacuation to create counter-pressure in a smoke-filled tunnel and to prevent the airflow from reversing.

Searchlights and thermal imaging cameras are fitted for search and rescue operations, enabling firefighters to see through smoke.

Stadler is building the new trains, which are also authorised to operate on the German network, at its plants in Bussnang and St Margrethen, Switzerland.

 “Our new Servicejets enable us to provide assistance even faster than before. They provide more power in a larger operational area. The new concept also enables a reduction from 21 to 18 vehicles," says Mr Johann Pluy, board member at ÖBB Infrastructure.

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