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
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]
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
^ The class was also known in Dutch as Dregboten .[ 1]
Citations
References
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 .
Dutch naval ship classes post-1945