O 9-class submarine (1923)

O 9, 10, 11: Patrol submarines (1926-1944) Within the cycle of Dutch submarines, from the beginning to the end of the cold war we start with the second branch of the lineage, the ones designed for the Dutch home waters. They were caracterized by the letter “O” for “Onderzeeboot” (“submarines”), and arabic numerals instead of … Read more

KXI class submarine (1924)

K XI, XII, XIII: Patrol submarines (1924-1945) The K.XI (or K 11) class were three submarines built by Fijenoord shipyard in Rotterdam for the Royal Netherlands Navy that draw lessons from the previous K VIII class and improved on many points. They were the last ordered in WWI, by 1918, to be still active in … Read more

K VIII class submarine (1922)

K VIII, IX, X: Patrol submarines (1922-1944) The next Dutch submarine class to see action in WW2, also fairly old, were the K.VIII class. They varied from the K.V-class for the removal of their two external torpedo tubes to reduce their vulnerability to depth charging. The British did the same but for the drag they … Read more