HNLMS Tydeman (A906)

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Plancius in Longyearbyen on 12 July 2013
History
Netherlands
NameTydeman
NamesakeGustaaf Frederik Tydeman
OrderedOctober 1974
Laid down29 April 1975
Launched18 December 1975
Commissioned10 November 1976
DecommissionedJune 2004
Identification
FateSold to tour operator Oceanwide Expeditions
History
NamePlancius
OwnerOceanwide Expeditions
Port of registryNetherlands Netherlands
Acquired2009
Identification
StatusIn service
General characteristics (as Tydeman)
TypeOceanographic research vessel
Displacement2,977 t (2,930 long tons) fully loaded
Length90.2 m (295 ft 11 in)
Beam14.4 m (47 ft 3 in)
Draught4.8 m (15 ft 9 in)
Installed power3
Diesel-electric units, 2,040 kW (2,730 hp
)
Propulsion3 ×
bow thrusters
Speed15 knots (28 km/h; 17 mph)
Complementmaximum 62 plus 15 scientists
Sensors and
processing systems		Atlas DESO-10
echo sounder, EDO-Western type 515 deep sea echo sounder, ELAC-Mittellodar wreckage sonar, Geometrics G-801 magnetometer

MV Plancius, formerly HNLMS Tydeman (A906), is a renovated oceanographic research vessel of the Royal Netherlands Navy now employed as a polar expedition cruise vessel by owner and operator Oceanwide Expeditions. She was commissioned into the Royal Netherlands Navy on 10 November 1976, and served until 2004, before being renovated for commercial use. The vessel was used for both military and civilian research and had a fracture zone named after it.

Design and description

Designed for

bow thrusters creating 360 kW (480 hp).[1] This gives the vessel a maximum speed of 15 knots (28 km/h; 17 mph) and a range of 15,700 nautical miles (29,100 km; 18,100 mi) at 10.3 knots (19.1 km/h; 11.9 mph) or 10,300 nmi (19,100 km; 11,900 mi) at 13.5 knots (25.0 km/h; 15.5 mph).[2]

Tydeman was designed for military and civilian research and had a maximum complement of 62 including 8 officers with an additional 15 civilians.

echo sounders, EDO-Western type 515 deep sea echo sounder, ELAC-Mittellodar wreckage sonar, Geometrics G-801 magnetometer, bottom diggers, radiosondes, barometers and Kelvin Hughes, hull-mounted side-scan sonar. The vessel mounted one 10-ton crane and one 4-ton crane with frames.[1]

Construction and career

Dutch service

Ordered in October 1974, the vessel was constructed for the

Siboga Expedition (1899–1900) in the Dutch East Indies.[4] Used for civilian and military research, the vessel became the namesake of the Tydeman fracture zone (36°N 23°W), between Madeira and the Azores which was part of the project investigating the area in 1977.[5]

From March 1991 to March 1992, Tydeman trialled a derivative version of the Thomson-Sintra DUBM 41 towed sonar system. This was followed by a major refit from April to November 1992 at the aan der Giessen-Noord shipyard. From 1996 to 1997, the research ship trialled the TSM 2670 2-ton active low-frequency sonar body and passive towed sonar array.[1] The ship was taken out of service in June 2004.[6][7]

Post naval career

After retiring from naval service, the vessel was acquired by

zodiacs and a crew of 37. Tydeman was renamed Plancius and sails under the Dutch flag, used for cruises to the Arctic and Antarctica.[7]

Notes

  1. ^ Couhat has the dimensions as 90.15 m (295 ft 9 in) long, with a 14.43 m (47 ft 4 in) beam and a 4.75 m (15 ft 7 in) draught. The ship's fully loaded displacement is 3,000 t (3,000 long tons).[2]
  2. ^ Couhat states the vessel had eight laboratories.[2]

Citations

  1. ^ a b c d e f g h i Sharpe 1996, p. 462.
  2. ^ a b c d e f Couhat 1986, p. 350.
  3. ^ a b Miramar Ship Index.
  4. ^ Theberge, Albert E. (12 April 2021). "The Siboga Expedition". Hydro International. Retrieved 19 October 2021.
  5. S2CID 128420774
    .
  6. ^ Saunders 2004, p. 493.
  7. ^ a b Plancius.

References

External links
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