K XI-class submarine

The K XI class was a class of three submarines, built by Fijenoord shipyard in Rotterdam for the Royal Netherlands Navy. Used for patrols in the Dutch colonial waters. The class comprised K XI, K XII and K XIII. The submarines diving depth was 60 meters. All ships were still in service at the start of World War II. K XIII was scuttled while under repair at Soerabaja to prevent her being captured by the invading Japanese forces.