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HNLMS De Ruyter (1935)

HNLMS De Ruyter was a unique light cruiser of the Royal Netherlands Navy. Intended to reinforce the older Java-class cruisers in the Dutch East Indies, her design and construction were limited by the Great Depression. Laid down in 1933 and commissioned in 1936, she spent the first part of her career patrolling nearby waters prior to the Dutch declaration of war on Japan. During the Dutch East Indies campaign, she became the flagship of the American-British-Dutch-Australian Command Combined Strike Fleet. For the first several months of war, she led Allied warships in unsuccessful attempts to intercept Japanese invasions and withstood multiple air attacks. During the Battle of the Java Sea, the cruiser was ambushed by a night-time torpedo attack by Haguro and sunk with most of her crew. Her wreck was later illegally salvaged for metal in the 2010s, which destroyed most of the ship.

Development
During the Interwar period, the Dutch Navy was split between defending the Netherlands and the Dutch East Indies, particularly the island of Java. While the European fleet focused around minelaying, the flotilla in Asia relied on a combination of aircraft, destroyers, and submarines to identify and destroy an invading force near the coastline. Cruisers were vital in this doctrine, as they had the capability to sail out to sea and attack enemy convoys outside the Indonesian archipelago and serve as powerful escorts for Allied vessels. By 1927, the Great Depression had sapped the budget and strength of the Dutch military. Recognizing the need for post-depression rebuilding, the Navy proposed the Vlootplan Deckers (Deckers Fleet Plan) in 1930 to expand the East Indies fleet to a satisfactory size. The plan called for a force of three cruisers. While two Java-class cruisers were already in service, regular maintenance meant both could not always be available for combat. To ensure two cruisers could be operational simultaneously, the plan called for the construction of a new cruiser to join the Java class in the East Indies. Three Java cruisers were initially planned, however the third, Celebesintended as the flagship for the East Indies Fleetwas cancelled in 1919, which required a replacement. Budgetary constraints The Dutch economy was recovering when design work on the new cruiser began, which limited how much the Tweede Kamer was willing to budget. The ship's design was based on the earlier Java class and replicated many of its features, including similar armor protection, range, and the caliber of the main guns. However, budgetary constraints required a lighter hull than the Javas, restricting the main battery to just three twin turrets. This reduction in firepower drew considerable criticism. Some advocated for a fourth turret, the addition of torpedo tubes, or argued the funds would be better spent on aircraft or submarines. Further objections emerged through a Navy-sponsored essay contest, in which several winning entries proposed building a treaty cruiser armed with guns and displacing . However, the proposal was rejected in 1930, as it would have nearly doubled the projected cost. Some of the criticisms were addressed through political maneuvering; by classifying the ship as a flottieljeleider (flotilla leader), the Navy justified a modest increase in displacement, which allowed for the addition of a single 15 cm gun mounted forward of the bridge. == Design ==
Design
Her final design displaced and measured in length, with a beam of and a draft of . Her main armament consisted of three Wilton-Fijenoord Mk 9 twin turrets – two mounted aft and one forward - along with the aforementioned single 15 cm Mk 10 turret. For antiaircraft defense, she was equipped with five twin Bofors L/60 guns mounted on a platform at the stern. She was the first vessel to be outfitted with the popular L/60, and combined with her advanced antiaircraft fire control, she was a capable warship for air defense. The platform was separated from the funnel by the Navy's first catapult and an aircraft stowage area, which supported two Fokker C.XI-W floatplanes used for reconnaissance and artillery spotting. Powered by six boilers and three geared turbines, the cruiser produced , which drove two propellers and reached a top speed of , though she would normally steam at a maximum of . Her armor was light, consisting of an armored belt and turret protection between thick along with around the conning tower and a thick deck. The design flaws were addressed in the Eendracht-class cruisers laid down starting in 1939, which were intended to replace the Java class. With the new cruiser as a basis for the new design, the Eendracht class had a full battery of 10 guns. Due to the German Invasion and consequent recapture of the Netherlands, the class entered service as the De Zeven Provinciën class. == History ==
History
Construction The cruiser was ordered on 1 August 1932, and her keel was laid on 16 September 1933 at the Wilton-Fijenoord shipyard. Despite continued financial issues, she was launched on 11 May 1936. On 3 October, she was completed and commissioned as De Ruyter, named after 17th-century admiral Michiel de Ruyter. The enlarged fleet, comprising five cruisers and nine destroyers from four nations, was led by De Ruyter as it moved to intercept the Japanese forces off Java. Contact was made in the mid-afternoon, and the two fleets engaged at long range. The distance made accurate gunnery difficult: De Ruyters salvos all missed, though she was struck by a dud shell that caused negligible damage. About 20 minutes into the battle, the Japanese fleet launched a large salvo of Type 93 torpedoes and hoped the Allied fleet would not expect such an attack from such an extreme range. The only hit was to the destroyer Kortenaer, which promptly sank. The gunnery duel continued: HMS Exeter was struck in her boiler room, which cut her speed to . As Exeter turned to withdraw and avoid colliding with the ships behind her, the trailing cruisers followed suit, and mistakenly believed an order had been given by De Ruyter. Doorman then desperately had his now-isolated cruiser reform the battle line and ordered several destroyers to make torpedo attacks as cover. Once reunited with the other cruisers, he then broke off from the engagement and circled around the Japanese to intercept the transports somewhere north of him. The force was now reduced to the cruisers De Ruyter, Java, Houston, and Perth. The destroyers had either been sunk, severely damaged, tasked with escorting the crippled Exeter, or forced to break off due to lack of fuel and torpedoes. Sinking The cruisers were temporarily followed by Japanese floatplanes, which gave the Japanese an understanding of his route. Unaware, the Allied cruisers passed near the invasion force, but were ambushed by the Japanese heavy cruisers Haguro and Nachi. Under cover of darkness, the Japanese closed to undetected and fired a spread of torpedoes followed by a renewed gun duel. The fleet took evasive action, but one torpedo from Nachi struck Javas magazine. The resulting explosion obliterated the old cruiser. Doorman believed the torpedoes had all passed and resumed course, which placed De Ruyter directly in the path of another spread, this time from Haguro. A torpedo struck her stern near the reduction gears with devastating effect. Power was lost, oil spilled from a ruptured tank, and fire engulfed her aft section. As the fire spread to the antiaircraft platform, the 40 mm ammunition began to cook off, while damage-control teams struggled to respond. Without electrical power, fire hoses and pumps were inoperable, but to fight the fire, the burning dynamo generators had to be extinguished. One of the last orders from the cruiser was for the remaining two ships to flee. The order to abandon ship was given among more secondary explosions. The wounded were prioritized and placed into the only boat that could deploy without electricity. Doorman and De Ruyters captain, Eugène Lacomblé, were determined to go down with the ship. While their exact fate is unclear, one sailor saw the two retreat to a cabin, where they presumably killed themselves. A total of 344 crew members roughly 80% of the ship's complement died, many from the anti-air ammunition explosions or the floating oil fires. == Wreck ==
Wreck
The cruiser sank upright in of water, and settled on her starboard side. Her wreck was discovered by a dive team in 2002, who regularly visited her and found the wrecks of other ships sunk during the last days of ABDACOM. Only during one of these expeditions was it discovered that De Ruyter's Bofors antiaircraft guns had been modified to include faceshields. When a memorial expedition in 2016 was only able to find an imprint left in the seabed, the wreck was believed to have been intentionally dismantled. The Dutch government investigated, offended at the mass disturbance of war graves. An investigation determined the wreck's disappearance was part of a trend where shallow World War II-era shipwrecks were blown apart and salvaged by groups posing as fishermen. In 2018, The Guardian reported the bones from De Ruyter and other warships were removed from their respective wrecks during scrapping in Indonesia and were dumped in several mass graves nearby. The Dutch and Indonesian governments collaborated in the investigation, exhumed suspected graves, and laid out plans to prevent further damage to the shipwrecks. ==See also==
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