HMNLS Karel Doorman - Design
The Joint Logistic Support Ship measures 205 meters in length and 30 meters in breadth. Total displacement is 28.000 tonnes, speed 18 knots. The vessel accommodates 175-180 crew and up to 120-125 non-listed persons, such as helicopter crew and medical teams. Further large areas for evacuees can be arranged. For the support of operations a fully equipped role 3 hospital shall be installed.
The JSS has 2000 lane meters for transport of materiel, a helicopter deck with landing spots for operating two Chinooks simultaneously, and a hangar with a storage capacity of up to 6 helicopters. For maritime support the ship has the holding capacity of approx 8000 m3 of fuel, more than 1000 m3 of heli fuel, approx 450 m3 of potable water and approx 400 tonnes of ammunition.
The JSS has the facilities for loading and unloading operations of materiel and goods in harbors, near the shore or at open or at sea : two Replenishment-At-Sea masts, an elevator and crane for up to 40 tons, a roll on/roll off facility for vehicles, and a steel beach stern construction for accommodating cargo transfer via landing craft.
For self defence purposes the weapon suit consists of two Goalkeepers, two 30 mm automatic guns, and four automatic medium caliber gun systems. In order to reduce the vulnerability, the vessel will be outfitted with signature reduction measures, ballistic protection, blast resistant constructions, redundant-, shock resistant-, and decentralized systems, a gas citadel and extensive fire fighting systems.
The manning requirement is low as the the vessel is designed with a layout optimized for day-to-day operations and the automation level for this vessel is high. It includes a calamity system, a warning system, an overview system and extensive subsystem automation. Also the communication and networks are state of the art, tailored to operate in a joint network environment.
The wireless communication and messaging system on board HNLMS Karel Doorman is about using function based workflow to provide intelligent messaging to and from crew members.
The first group of intelligent messaging is called system maintenance messaging and provides real time maintenance information from platform systems generating system messages & tasks to be accepted by the responsible crew member. These system messages will be controlled by supervisors and/or automated escalation control procedures eg a non-confirmed fire detection notification. In this case the damage control assistant, responsible for lets say the damage control section AFT, will receive a short system instruction to check the fire alarm accordingly. DCA-AFT is requested to report immediately along the chain of command towards the damage control officer.
The second group of intelligent messaging is all about crew member conference grouping, intercom users setting up predefined voice conference groups to retrieve and share information between high mobile crew members at the calamity spots and low mobile crew members at the information management centres.
In order to reduce the vulnerability, the vessel has been outfitted with signature reduction measures, ballistic protection, blast resistant constructions, redundant and shock resistant systems, a gas citadel, and extensive firefighting systems. The power of this ship class is that it can supply other NATO vessels and it can transport a large amount of materials. The JSS is with a height of nearly 50 yards not only the longest, but also the highest ship of the Royal Netherlands Navy.
On 30 March 2010 the Netherlands Defence Materiel Organization and Thales Nederland signed a contract for the delivery and installation of an Integrated Mast that is to be installed on the Joint Logistic Support Ship (JSS). This ship was being designed and engineered by Damen Schelde Shipyard in Flushing. This Integrated Mast is an I-Mast 400, identical to the Integrated Masts that are installed on the four Patrol Ships, also for the Royal Netherlands Navy. The I-Mast 400 for the JSS was built by the Royal Netherlands Navy in Den Helder, the subsystems were built in and tested at the Thales plant in Hengelo and delivered to the Damen Schelde Shipyard in January 2014.
The integrated mast is a complete new design approach in comparison with the traditional sensor layout on board of naval vessels. One central mast structure houses most radar, optronic, and communication sensors and antennas as well as all cabinets and peripherals. The advantages of this revolutionary sensor concept are huge: better operational performance, higher operational availability, reduced ship-building time, reduced maintenance requirements and enormous savings in below-deck space.
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