The Rotterdamsche Droogdok Maatschappij (RDM) was the largest pre-World War II shipbuilding and repair company in Rotterdam in the Netherlands, existing from 1902 to 1996. It built 355 mostly major seagoing vessels, 18 of which were submarines. During its existence, the wharf operated 12 floating docks and in its heyday employed 7,000 people at one time.
Wilton-Fijenoord was a shipbuilding and repair company in Schiedam the Netherlands from 1929 to 1999. Presently, the shipyard of Wilton-Feijnoord is part of Damen Shiprepair Rotterdam.
O 19, laid down as K XIX, was an O 19-class submarine of the Royal Netherlands Navy that saw service during World War II. O 19, along with her sister ship O 20, were the first submarines in the world to be equipped with a submarine snorkel that allowed the submarine to run its diesel engines while submerged.
The O 12-class submarine consisted of four submarines built for the Royal Netherlands Navy. The ships, with a diving depth of 60 metres (200 ft), were used for patrols in the Dutch home waters. The class comprised O 12, O 13, O 14 and O 15. O 12 entered German service in 1943 as UD-2.
O 24, laid down K XXIV was an O 21-class submarine of the Royal Netherlands Navy that saw service during World War II. The most famous occupant of O-24 was Piet de Jong, who was the commanding officer from 1944 until 1946 and who later became Minister of Defence in 1963 and served as Prime Minister of the Netherlands from 1967 until 1971.
HNLMS O 12 was a O 12-class submarine of the Royal Netherlands Navy. Built at Koninklijke Maatschappij De Schelde in Vlissingen, she was launched in 1930 but was unable to take part in military action during World War II. After being scuttled by the Dutch Navy, she was raised by Nazi Germany's Kriegsmarine and taken into service as UD-2, and then scuttled again.
O 6 was a unique patrol submarine of the Royal Netherlands Navy for European home waters. The ship was built by De Schelde shipyard in Flushing. The submarines diving depth was 40 metres. O 7 was very similar to the O 6 and they are sometimes regarded as one class.
K II was a unique patrol submarine of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam. The boat had a diving dept of 40 metres (130 ft).
K V was a K V-class patrol submarine of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam.
K VI was a K V-class patrol submarine of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam.
K VII was a K V-class patrol submarine of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam.
O 21, laid down K XXI was an O 21-class submarine of the Royal Netherlands Navy that saw service during World War II. During the war she sank several ships, among them the German submarine U-95.
O 23, laid down as K XXIII, was an O 21-class submarine of the Royal Netherlands Navy that saw service during World War II. During the war she sank and damaged several ships.
O 11 was a O 9-class patrol submarines of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam.
O 9 was an O 9-class patrol submarines of the Royal Netherlands Navy. The ship was built by Koninklijke Maatschappij De Schelde shipyard in Flushing.
O 10 was a O 9-class patrol submarines of the Royal Netherlands Navy. The ship was built by Nederlandsche Scheepsbouw Maatschappij shipyard in Amsterdam.
K XIII was a K XI class patrol submarine of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam.
K XII was a K XI class patrol submarines of the Royal Netherlands Navy. The ship was built by Fijenoord shipyard in Rotterdam.
K XV was one of five K XIV class submarines built for the Royal Netherlands Navy. She served during World War II.
K XVIII was one of five K XIV-class submarines built for the Royal Netherlands Navy. She served during World War II.
Netherlands