Dreg I-class hydrographic survey vessel
_Foto_Nederlands_Instituut_voor_Militaire_Historie,_Den_Haag.jpg) Dreg IV
| |
| Class overview | |
|---|---|
| Name | Dreg I class |
| Builders | De Groot & Van Vliet, Slikkerveer |
| Operators |  Royal Netherlands Navy |
| Built | 1949–1950 |
| In service | 1950–1986 |
| Planned | 4 |
| Completed | 4 |
| General characteristics [1] | |
| Type | Hydrographic survey vessel |
| Displacement | 48 t (47 long tons) |
| Length | 20 m (65 ft 7 in) |
| Beam | 4.40 m (14 ft 5 in) |
| Draft | 1.40 metres (4 ft 7 in) |
| Propulsion |
|
| Speed | 10 knots (19 km/h; 12 mph) |
| Crew | 4 |
The Dreg I class[a] 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]
Design and construction
[edit]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
[edit]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
[edit]| Ship | Pennant No. | Laid down | Launched | Commissioned | Decommissioned | Fate |
|---|---|---|---|---|---|---|
| Dreg I | A909 | 15 May 1950 | 17 July 1950 | 6 April 1970 | Sold to C. Houkoop on 6 October 1970. | |
| Dreg II | A910 | 15 May 1950 | 17 July 1950 | 6 April 1970 | Sold to P. Peetoom on 6 October 1970. Later rebuild as yacht.[9] | |
| Dreg III | A919 | 14 December 1949 | 21 August 1950 | 18 September 1950 | 6 April 1970 | Sold to C.P. Vader on 6 October 1970. Later taken over by the shipping company Waterweg. |
| Dreg IV | A920 | 14 December 1949 | 21 August 1950 | 25 September 1950 | Gifted to Stichting Onderwaterschatten Zeeland on 23 March 1987. |
Notes
[edit]Citations
[edit]- ^ a b van Amstel (1991), p. 90.
- ^ a b Raven (1988), p. 190.
- ^ a b c van Amstel (1991), pp. 90-91.
- ^ a b "Dregboten Hydrografie in actie op IJsselmeer: Gedeelte langs Friese kust wordt gepeild". Leeuwarder Courant (in Dutch). 4 July 1966.
- ^ "Zeeschepen per schip naar hun bestemming". Het Parool (in Dutch). 4 November 1950.
- ^ "Marine wil diep in de Noordzee tasten: Voor veilige vaart naar Europoort". Algemeen Dagblad (in Dutch). 30 October 1962.
- ^ "Verkoop bij inschrijving". De Volkskrant (in Dutch). 10 September 1970.
- ^ "Verkoop bij inschrijving". De Telegraaf (in Dutch). 10 September 1970.
- ^ "Schrijver Tom Rot zoekt liefhebbers van schepen met een verleden: 'Libertijn' vaart op liefde". Algemeen Dagblad (in Dutch). 30 March 1974.
References
[edit]- Raven, G.J.A., ed. (1988). De kroon op het anker: 175 jaar Koninklijke Marine (in Dutch). Amsterdam: De Bataafsche Leeuw. ISBN 90-6707-200-1.
- van Amstel, W.H.E. (1991). De schepen van de Koninklijke Marine vanaf 1945 (in Dutch). Alkmaar: De Alk. ISBN 90-6013-997-6.