NSB Class 71 (Norwegian: type 71) is an electric multiple unit used by Flytoget for the Airport Express Trains on the Gardermoen Line of Norway.

Although the technology involved is similar, like spot-welded stainless steel car bodies, the Class 71 differs in several ways.

In addition, the trains are pressure tight to increase comfort for passengers while passing through tunnels.

Norges Statsbaner later took order of 22 units of the Class 73, that is almost identical, but has four cars and tilting technology.

However, the trains normally only operate as single or double units, limiting the length to eight cars.

The order for the units was placed on 23 February 1995,[1] after NSB had received bids from ABB (that later merged with Daimler-Benz's train division to become Adtranz), AEG, Fiat Ferroviaria, Talbot, Linke-Hofmann-Busch, Siemens and Görlitz.

[2] During 1996, an X2 train was hired to test out performance on the Norwegian railway system, and for a short period put into service on the Sørland Line.

This increased the capacity of each unit by 40% to 244 seats, and allows the company to manage the annual 10% growth in passengers.

The delivery of the fourth cars started in 2008 and were built by Bombardier Transportation, who has bought ADtranz, with the rebuilding scheduled to be completed during 2009.

Significant components such as the car body and rectifiers had to be built by Bombardier based on abandoned production lines, and many of the original manufacturers for the interior have become defunct.

In 1999, an employee of the Norwegian National Rail Administration was killed after impact with a train; the authorities stated that the cause was due to the train operating at 160 kilometres per hour (99 mph), instead of the temporarily reduced limit of 80 kilometres per hour (50 mph).

[11] Several other deaths on the line have been classified as suicides, and so are not part of the accident statistics;[12][13] they do however cause delays on all services for hours after the incidents take place.