The main gun was large for such a small craft, roughly a quarter of the length of the whole vessel, and of the same caliber as heavy battleship guns of the same era.

The Gor class was likely built in the belief that the ships would be able to inflict serious damage to an opposing battleship.

Shortly before the First World War, both vessels were rebuilt as minelayers.

With the heavy gun and ammunition removed, these diminutive vessels could carry a useful number of mines.

After the Second World War, the vessels were returned to the Royal Norwegian Navy, and subsequently decommissioned.