HNLMS De Ruyter (1935)

HNLMS De Ruyter (1935) was a unique light cruiser built for the Royal Netherlands Navy during the 1930s. Named after the famed 17th-century Dutch admiral Michiel de Ruyter, she was designed as a compact and economical flagship for the Netherlands East Indies squadron. Her career was dominated by the defense of the Dutch East Indies against the Imperial Japanese Navy during the early months of the Pacific War, culminating in her loss at the Battle of the Java Sea.

Design and description

The design for *De Ruyter* emerged from stringent budgetary constraints within the Dutch government and the Ministerie van Marine, leading to a vessel that was significantly smaller and more lightly armed than contemporary foreign cruisers like the British ''Leander''-class or Japanese ''Mogami''-class. Her primary armament consisted of only seven 150 mm guns in single mounts, a compromise that drew criticism for lacking the firepower of twin turrets. Protection was limited, with a maximum belt armor of 50 mm, designed primarily to withstand fire from destroyer-sized opponents. Propulsion was provided by Parsons geared turbines and six Yarrow boilers, granting a top speed of 32 knots. As a flagship, she carried enhanced communications equipment and facilities for an admiral and his staff, including the commander of the American-British-Dutch-Australian Command, Rear Admiral Karel Doorman.

Construction and career

*De Ruyter* was laid down at the Wilton-Fijenoord shipyard in Schiedam on 16 September 1933, launched on 11 March 1935, and commissioned into the Royal Netherlands Navy on 3 October 1936. Following sea trials in European waters, she was dispatched to the Dutch East Indies, arriving at her home port of Surabaya in 1937. In the years leading up to World War II, she conducted routine patrols and exercises with other units of the Netherlands East Indies Squadron, such as the light cruiser HNLMS *Java* and the destroyer HNLMS *Van Ghent*. After the Japanese invasion of the Dutch East Indies in December 1941, *De Ruyter* became the flagship of the Allied striking force, designated Combined Striking Force, commanded by Admiral Doorman. She participated in several inconclusive actions in the Java Sea and the Bali Strait against Japanese invasion convoys screened by powerful forces from the Imperial Japanese Navy.

Battle of the Java Sea and loss

On the afternoon of 27 February 1942, *De Ruyter* led the Combined Striking Force into the decisive Battle of the Java Sea. The Allied force, which included the heavy cruiser USS *Houston*, the British cruiser HMS *Exeter*, and the Australian cruiser HMAS *Perth*, engaged a Japanese invasion fleet protected by the cruisers *Nachi* and *Haguro*. During a chaotic night action, *De Ruyter* was struck by a Type 93 torpedo (Long Lance) fired from the *Haguro*. The torpedo hit ignited her aft aircraft hangar and a major ammunition magazine. The resulting fires spread rapidly and proved uncontrollable. *De Ruyter* sank shortly after midnight on 28 February, taking Admiral Doorman and 344 of her crew with her. The disaster crippled Allied naval power in the region, leading directly to the Battle of the Sunda Strait and the subsequent Japanese occupation of the Dutch East Indies.

Wreck discovery

The wreck of *De Ruyter* was located in 2002 by an expedition led by the specialist survey vessel MV *Empress*. It rests upright on the seabed in the Java Sea at a depth of approximately 70 meters, northeast of Bawean island. The ship's hull is largely intact, though the stern section shows catastrophic damage from the torpedo explosion. In 2016, the wreck site was reported to have been extensively damaged by illegal salvaging operations, which targeted the valuable non-ferrous metals in the hull. This prompted formal protests from the Government of the Netherlands and sparked international concern over the preservation of naval war graves. The fate of the wreck remains a point of diplomatic discussion between the Netherlands and Indonesia.

Category:Light cruisers of the Royal Netherlands Navy Category:World War II cruisers Category:Ships built in the Netherlands Category:Maritime incidents in 1942 Category:World War II shipwrecks in the Java Sea