Dreg I-class hydrographic survey vessel

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Hr.Ms. Dreg IV (1950) Foto Nederlands Instituut voor Militaire Historie, Den Haag.jpg
Dreg IV
Class overview
NameDreg I class
BuildersDe Groot & Van Vliet, Slikkerveer
OperatorsNaval Jack of the Netherlands.svg  Royal Netherlands Navy
Built1949–1950
In service1950–1986
Planned4
Completed4
General characteristics [1]
Type Hydrographic survey vessel
Displacement48 t (47 long tons)
Length20 m (65 ft 7 in)
Beam4.40 m (14 ft 5 in)
Draft1.40 metres (4 ft 7 in)
Propulsion
Speed10 knots (19 km/h; 12 mph)
Crew4

The Dreg I class [lower-alpha 1] was a ship class of four hydrographic survey vessels that were built in the Netherlands for the Royal Netherlands Navy (RNN). [2] They served in the RNN between 1950 and 1986. [3]

Contents

Design and construction

The hydrographic survey vessels of the Dreg I class were all built at the shipyard of De Groot & Van Vliet in Slikkerveer. [2]

For surveying the vessels were equipped with echo sounders and marker buoys that were shaped as spheres. [4]

Service history

In November 1950 two vessels of the Dreg I class were transported from the Netherlands to Dutch New Guinea by ship. [5] In total three survey vessels of the Dreg I class (Dreg I, Dreg II and Dreg III) served in Dutch New Guinea till 1 October 1962. [3]

In 1963 the Dreg I-class hydrographic survey vessels were active in the North Sea to collect data that would help determine the safest waterway to the Europoort. [6]

In 1966 three Dreg I-class survey vessels were used to map a part of the IJsselmeer between Staveren and Lemmer. [4]

In 1970 three hydrographic survey vessels of the Dreg I class were sold. [7] [8]

Ships in class

Dreg I-class construction data [3]
ShipPennant No.Laid downLaunchedCommissionedDecommissionedFate
Dreg I A90915 May 195017 July 19506 April 1970Sold to C. Houkoop on 6 October 1970.
Dreg II A91015 May 195017 July 19506 April 1970Sold to P. Peetoom on 6 October 1970. Later rebuild as yacht. [9]
Dreg III A91914 December 194921 August 195018 September 19506 April 1970Sold to C.P. Vader on 6 October 1970. Later taken over by the shipping company Waterweg.
Dreg IV A92014 December 194921 August 195025 September 1950Gifted to Stichting Onderwaterschatten Zeeland on 23 March 1987.

Notes

  1. ↑ The class was also known in Dutch as Dregboten. [lower-alpha 2]

Citations

  1. ↑ van Amstel (1991), p. 90.
  2. 1 2 Raven (1988), p. 190.
  3. 1 2 3 van Amstel (1991), pp. 90-91.
  4. 1 2 "Dregboten Hydrografie in actie op IJsselmeer: Gedeelte langs Friese kust wordt gepeild". Leeuwarder Courant (in Dutch). 4 July 1966.
  5. ↑ "Zeeschepen per schip naar hun bestemming". Het Parool (in Dutch). 4 November 1950.
  6. ↑ "Marine wil diep in de Noordzee tasten: Voor veilige vaart naar Europoort". Algemeen Dagblad (in Dutch). 30 October 1962.
  7. ↑ "Verkoop bij inschrijving". De Volkskrant (in Dutch). 10 September 1970.
  8. ↑ "Verkoop bij inschrijving". De Telegraaf (in Dutch). 10 September 1970.
  9. ↑ "Schrijver Tom Rot zoekt liefhebbers van schepen met een verleden: 'Libertijn' vaart op liefde". Algemeen Dagblad (in Dutch). 30 March 1974.

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References

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