Onversaagd-class minesweeper

Last updated

HrmsmercuurA856.jpg
Onverschrokken
Class overview
NameOnversaagd class
Builders
OperatorsNaval Jack of the Netherlands.svg  Royal Netherlands Navy
Built1952–1955
In commission1954–1987
Planned6
Completed6
Scrapped5
Preserved1
General characteristics [1] [2]
Type Minesweeper
Displacement750 t (740 long tons)
Length50.29 m (165 ft 0 in)
Beam10.67 m (35 ft 0 in)
Draft2.80 m (9 ft 2 in)
Propulsion
Speed15.5 knots (28.7 km/h; 17.8 mph)
Crew72
Armament1 x 40 mm gun

The Onversaagd class was a ship class of six minesweepers that were built in the United States for the Royal Netherlands Navy (RNN). [3] [4] They were paid for by the United States under the Mutual Defense Assistance Program (MDAP). [5] The minesweepers were based on the design of the Aggressive class and taken into service of the RNN between 1954 and 1955. [6]

Contents

Design

To sweep naval mines the minesweepers of the Onversaagd class were equipped with the Wire Mk1, M Mk 6 A, A Mk 6B and the A Mk 4v. [6] Furthermore, the ships had a single 40 mm gun. [2] In addition, the minesweepers were equipped with a prototype of the UQS-1, but this mine avoidance sonar did not meet expectations. [6]

While the Onversaagd-class minesweepers had a range of 2,200 nautical miles (4,100 km; 2,500 mi), it was deemed insufficient, as it meant that the ships could only stay at sea for a maximum of eight to nine days without having to replenish its oil. [7]

Ships in class

Onversaagd-class construction data [8] [9] [10]
Hull numberNameBuilderLaid downLaunchedCommissionedDecommissionedFateNotes
M884 / A854 Onversaagd ¹ Astoria Marine Construction 24 September 19524 November 195327 May 195423 July 1976Sold for scrap to Liguria Maritime Ltd. in 1979 [11]
M885 / A855 Onbevreesd ²Astoria Marine Construction8 December 19527 November 195321 September 195428 May 1982 [12]
M886 / A856 Onverschrokken ³Peterson Builders19 February 195217 January 195322 Juli 195412 February 1987 Museum ship in Vlissingen [13]
M887 / A857 Onvermoeid ²Boston Naval Shipyard27 February 19532 May 195323 September 19541 October 1971Sold for scrap to Ross & Sons in 1975 [14]
M888 / A858 Onvervaard ²Astoria Marine Construction11 April 19526 March 195431 January 195526 April 1968Sold for scrap to Deans Marine Ltd. in 1983 [15]
M889 / A859 Onverdroten ²Peterson Builders17 February 195222 August 195322 November 195426 February 1965Sold for scrap to the firm Mantel in 1984 [16]

Citations

  1. ↑ "Onversaagd klasse" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.
  2. 1 2 van Amstel (1991), p. 115.
  3. ↑ "Amerikaanse mijnenveger in Nederland aangekomen". Trouw (in Dutch). 21 December 1954.
  4. ↑ Schoonoord (2012), p. 57.
  5. ↑ "Eerste mijnenveger uit V.S. aangekomen". Nijmeegsch Dagblad (in Dutch). 21 December 1954.
  6. 1 2 3 Roetering (1997), p. 131.
  7. ↑ Schoonoord (2012), p. 74.
  8. ↑ van Amstel (1991), pp. 114-117.
  9. ↑ Raven (1988), p. 184.
  10. ↑ van Amstel (1991), p. 89.
  11. ↑ "Hr.Ms. Onversaagd" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.
  12. ↑ "Hr.Ms. Onbevreesd" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.
  13. ↑ "Hr.Ms. Onverschrokken" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.
  14. ↑ "Hr.Ms. Onvermoeid" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.
  15. ↑ "Hr.Ms. Onvervaard" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.
  16. ↑ "Hr.Ms. Waalwijk" (in Dutch). Onze Marine Vloot. Retrieved 7 December 2022.

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References

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