Holland-class offshore patrol vessels
HNLMS Holland (Min. of Defence)
|Operators:||Royal Netherlands Navy|
|Type:||Offshore patrol vessel|
|Displacement:||approx. 3,750 tons full load|
|Propulsion:||2x MAN 12V28/33D diesel engines (5460KW each)|
|Speed:||21.5 knots (39.8 km/h; 24.7 mph)|
|Range:||5,000 nautical miles (9,300 km; 5,800 mi) at 15 knots (28 km/h; 17 mph)|
|Boats and landing
|Complement:||54 (+ additional space for 40)|
|Thales Integrated Mast
|Aircraft carried:||1 x NH90 helicopter|
|Aviation facilities:||fully equipped hangar and flight deck for one medium-sized helicopter|
||The lead section of this article may need to be rewritten. (March 2015)|
The Holland-class offshore patrol vessels are new oceanic patrol vessels for the Royal Netherlands Navy. They are designed to fulfill patrol and intervention tasks against lightly armed opponents, such as pirates and smugglers, but much higher level electronic and radar surveillance roles with great capabilities for military stabilisation and security roles, short of outright war. With no sonar or long range weapons they utilise, the surveillance capabilities of the plug in modular, thales integrated mast which integrates communication systems and two 4 faced phased arrays for air and surface search advanced as those of the combat systems of many USN combatants.
A contract between the Royal Dutch Navy and Damen Schelde Naval Shipbuilding in Vlissingen, the Netherlands was signed in 2007 for the construction of four vessels at a total cost of €467.8 million.
The vessels resulted from the Dutch Ministry of Defence's Marinestudie. The study proposes the sale of four existing Karel Doorman-class frigates, and using the proceeds and savings of the sale to commission four dedicated patrol vessels, allow the building of a more capable Joint Support Ship to replace the AOR HNLMS Zuiderkruis, and reintroducing a mine-sweeping capability to the Dutch Navy.
The vessels are designed for global use, in particular to be deployed to the Caribbean region, the South China Sea and the North Sea. They have the capability to carry out missions such as anti-piracy and blockade duties, and also can be used for emergency transport. They are constructed with heavier mild steel and armour , which results in a more robust ship of greater weight, than the previous M class frigates
The ships are able to monitor to 250 km range air, missile and UAV targets and 70 km range surface targets  using a Thales Integrated Sensor and Communication Systems (ISCS), comprising a SeaMaster 400 air warning radar, a Watcher 100 active phased-array surface detection and tracking radar, claimed to be able to detect small objects such as mines and periscopes on the sea surface at 40 km range, link 11 & 16 data links  a mine detection sonar and an infra-red Gatekeeper/electro-optical (EO) warning system. The sensor systems are housed in an integrated mast, also provided by Thales, called the I-Mast 400. Thales also built the satellite communications system for the ships.
The Holland class is fitted with a combined electric or diesel (CODELOD) propulsion system. It comprises two MAN 12V28/33D diesel rated at 5,460 kW each, combined with electric motors that drive a controllable-pitch propeller through two shafts. Electric operation is used mainly for low-speed operation.
Holland-class ships have a tonnage of 3,750 tons, are 108.4 metres (356 ft) in length, 16 metres (52 ft) in beam and have a draft of 4.55 metres (14.9 ft). The ships have a speed of 21.5 knots and a range of 5000 nautical miles at 15 knots. The ship's complement is 52 crew, as well as up to 39 people for duties such as helicopter or medical crew.
The ships are built to a design that is intended to reduce the ability of radar to detect them, as well improving seakeeping by locating the superstructure unusually far aft. The ships are painted a new light blue-gray color, which supposedly has a better camouflage-effect than the standard light-grey paint used by other RNLN-ships. The ships have a hangar and flightdeck for an NH-90 helicopter and also carry two Fast Raiding Interception Special forces Craft (FRISC), with a speed of more than 40 knots.
Beside these special forces crafts, the Holland class has an improved internal communication infrastructure and is more resistant to the use of resources, which are characteristic for asymmetric warfare.
Ships in class
The projected number of ships for the class is four; they are planned to be commissioned between 2011 and 2013. On December 20, 2007 the contract was signed for four ships at a cost of around €467.8 million. The ships will be named after Dutch provinces of historical maritime importance.
|Pennant number||Ship||Laid down||Launched||Commissioned|
|P840||Holland||8 December 2008||2 February 2010||6 July 2012|
|P841||Zeeland||5 October 2009||20 November 2010||23 August 2013|
|P842||Friesland||26 November 2009||4 November 2010||22 January 2013|
|P843||Groningen||9 April 2010||21 April 2011||29 November 2013|
Holland was laid down on 8 December 2008, launched on 2 February 2010 and commissioned on 12 May 2011. She was built at the Damen Schelde shipyard in Vlissingen. On 16 November 2011 she was the first ship in her class to receive the Thales Integrated Mast IM-400. The ship entered service during the 2012 Dutch navy days in Den Helder.
Zeeland was laid down on 5 October 2009 and launched on 20 November 2010. She began sea trials on 31 August 2011. She was built at the Damen Schelde shipyard in Vlissingen. Zeeland was delivered on 20 October 2011, and received her sensormast in December 2012. To enter service after final fitting out and finishing trials. The Zeeland was commissioned on 23 August 2013 at Vlissingen.
Friesland was laid down on 26 November 2009 and launched on 4 November 2010. She began sea trials on 27 September 2011, and she was delivered to the Defense Material Organisation (DMO) on 11 April 2012. She was built at the Damen Schelde shipyard in Galați. On 26 April 2012, she assisted in the rescue of a sail training vessel off Iona while participating in an international exercise.
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