Bjørkelangen is a steam locomotive, built in Chemnitz, Germany in 1924. It operated on the Urskog-Høland train line until the train line stopped operating in 1960.
The train was used to haul timber and passengers from Sørumsand to Skulerud in southeastern Norway, a distance of 50 km. The locomotive came to NTNU on November 1, 1961. Smørekoppen, an NTNU student group, has responsibility for the train, which is now protected under a glass roof next to the Varmeteknisk building on the Gløshaugen campus.
The locomotive can be operated, but the steam boiler no longer works. NTNU students have made a film of the locomotive when it first came to the university in 1961, and later when it was operated using an external air compressor to provide power in 2008. Students still use the air compressor to fire up the train on special occasions, but it is a relatively rare occurence.