 HNLMSTydeman | |
| History | |
|---|---|
 Netherlands | |
| Name | Tydeman |
| Namesake | Gustaaf Frederik Tydeman |
| Builder | Marine Etablissement,Surabaya |
| Launched | 24 July 1916 |
| Commissioned | |
| Out of service | 4 March 1942 |
| Fate | Sunk by near misses from Japanese bombardments onTjilatjap |
| General characteristics | |
| Type | Auxiliary,hydrographic survey ship |
| Displacement | 1,160 t (1,140 long tons)standard |
| Length | 69 m (226 ft 5 in) |
| Beam | 10 m (32 ft 10 in) |
| Draught | 3.6 m (11 ft 10 in) |
| Installed power | 700 hp (520 kW) |
| Propulsion | 2 × Werkspoor Diesel Engine |
| Speed | 10knots (19 km/h; 12 mph) |
| Complement | 104 |
| Armament | 2 × 37 mm (1.5 in) cannons |
HNLMSTydeman was ahydrographic survey vessel created for service with theGovernment Navy in theDutch East Indies. The ship was named after Gustaaf Frederik Tydeman, a famousSurinam-born Dutch admiral known for his scientific achievements in hydrographic research.
Tydeman was militarized by theRoyal Netherlands Navy upon the outbreak ofWorld War II.[1][2]
HNLMSTydeman served as a hydrographic survey vessel with the Government Navy. The ship was commissioned at a crucial time for mapping out the ocean streams, ocean floors and surfaces in the Dutch East Indies. It would be joined in this effort in 1928 by the newer vesselHNLMS Willebrord Snellius.
The Royal Netherlands Navy militarized the vessel afterwar broke out in Europe in 1939, however the ship would not see much action as her machinery was outdated and in a bad state. To that end, two new Enterprise Diesel engines were ordered and delivered that would see her speed increase to around 14knots (26 km/h; 16 mph). The engines would never be installed due to the outbreak ofwar in the Pacific.[1][2]
Tydeman was sunk on 4 March 1942 due to near-misses from Japanese bombardments onTjilatjap harbor.[1][2] The ship was raised byJapanese forces on 25 March 1944 and towed toTandjong Priok where it was renamed toChoijo. The upper deck behind thebridge would be removed and atripod mast would be installed on this location. It will never be known what function the ship would have served in the Imperial Japanese Navy as repairs had not been completed when World War II ended. After the war's end, the ship's condition was considered too deteriorated to be repaired and it was sunk once more, this time serving as atarget ship for the cruiserHNLMS Jacob van Heemskerck on 24 April 1946.[1][2]