The F class was a type of steam locomotive used by Swedish State Railways (Swedish: Statens Järnvägar, SJ) and based on the Württemberg C. Eleven locos were built by Nydquist & Holm (NOHAB) between 1914 and 1916.
It was primarily used on the main lines between Stockholm-Gothenburg and Stockholm-Malmö.
It is one of the largest steam locomotives ever used in Sweden.

The superheated compound locomotive could produce 1,140 kilowatts (1,529 hp).
The F class was a type of steam locomotive used by Swedish State Railways (Swedish: Statens Järnvägar, SJ) and based on the Württemberg C. Eleven locos were built by Nydquist & Holm (NOHAB) between 1914 and 1916. It was primarily used on the main lines between Stockholm-Gothenburg and Stockholm-Malmö. It is one of the largest steam locomotives ever used in Sweden.
The superheated compound locomotive could produce 1,140 kilowatts (1,529 hp).
SJ F (steam locomotive)