TSUNAMI CLASS | ARSENAL SHIP
Length: 315 meters
Width: 61.5 meters
Draft: 20 meters
Displacement: 217,000 tons
After the analysis of combat data, both tactical and strategic from recent conflicts, a joint POF, NH and United NW Canadian investigation determined that there was a definite need for an arsenal ship type vessel to strengthen the respective Navy's offensive punch, especially when supporting amphibious operations or "stove piping" operations.
Such a vessel would be capable of launching sustained devastating strikes from a distance with the utmost accuracy. It was also determined that such a ship would be the basis for other vessel types using that hull design. In line with the common hull theory, the vessels would all support a fairly large stern region aircraft faculties and well-deck. The New Hayesalian Navy was not a part of these longer-term developments.
The search was on for a hull design that would support the required systems, be survivable but above all be easily constructable/available. After numerous months of trails, planning, and research, the winning design team presented the final concept.
The Arsenal ship and its family of designs are based on the hull of the civil Oriental Nicety class. These ships are commercially available (keeping cost down and speeding build rates), inherently seaworthy, built to high structural standards and possessed by design may damage control properties such as reinforced hull and bulkhead, extra bulkheads, extra watertight compartmentalization as well as additional buoyancy changers and pumps. As well, due to the size of the vessels, large numbers of ordnance may be carried and deployed.
An advanced automated damage-control system combines sensors, cameras and automated firefighting capabilities to ensure that the Tsunami has the fastest possible response time to life- and ship-threatening events. This system improves survivability in both peacetime and wartime while reducing the number of crewmembers needed for damage control. Depending on the section and the extent of damage, the ships can deploy either a water spray/mist system or use a Halon/Nitrogen dump system to quell fires. The ship's construction is very much modular in design with each module being composed of various self contained compartments. These compartments can be automatically or manually sealed off from the rest of the ship and can also be flooded with sea water. This flooding aids in fire control and can be used in the advent of immanent internal explosions to dampen the blasts by using the water to absorb the concussion as well as the water pressure reinforcing the strength of the compartment walls against the explosive force.
The level of automation used in the Tsunami class arsenal ship will reduce crew size on these ships. A smaller crew will reduce a major component of operating costs. Ammunition, food, and other stores, are all mounted in containers able to be struck below to magazine/storage areas by an automated cargo handling system.
The vessels are fitted with an innovative integrated electric propulsion system. Historically, electric-drive ships have supplied power to their electric motors using DC, and ship's electrical load, where necessary at all, was either separately supplied or was supplied as DC with a large range of voltage. Integrated electric propulsion seeks to supply all propulsion and ship's electrical load via AC at a high quality of voltage and frequency. This is achieved by computerized control, high quality transformation and electrical filtering.
The NW Canadian Next Gen Vessels are all nuclear powered making use of the NWCOK-650 reactor in various configurations according to hull size.
The NWCOK-650 reactor is the nuclear fission reactor used to power a number of submarines currently in service with the NW Canadian Navy. Its small, highly efficient design was deemed perfect for the power source of the NW Canadian Next Gen Vessels. It is a pressurized water reactor (PWR), using 20-45% enriched uranium-235 fuel to produce 190 MW of power.
The NWCOK-650 reactor(s) provide electrical power at to a high voltage system. The high voltage supply is then used to provide power to advanced induction motors with outputs of 20 MW (27,000 hp) each. Ship's services, including hotel load and weapons system power supplies are transformed down from the high voltage supply to 440 V or 115 V.
The benefits of integrated electric propulsion are:
The combination of greater efficiency and nuclear endurance, allows for sustained high speed
Each of the shafts drive five bladed variable-pitch propellers. Each vessel is rated at being capable of doing 27 knots.
The combat system will be based on the total ship computing environment (TSCE) utilizing open architecture, standardized software and commercial-off-the-shelf (COTS) hardware.
The ship is equipped with the SEWACO XI combat data system developed by Thales Naval Nederland. The RNIN's Centre for the Automation of Weapon and Command Systems (CAWCS) has developed the software. The system will use asynchronous transfer mode (ATM) network architecture.
The integrated bridge and navigation system consists of multi-function consoles capable of displaying various functions such as Sensor matrix output, electronic chart display and information systems (ECDIS) and NautoConning navigation data which reads and displays in a logically arranged manner and distributes the navigation data.
One of the consoles is dedicated for route planning purposes.
The integrated bridge and navigation system encompasses the ship steering and control equipment, a ring-laser based dual MINS marine inertial navigation system, two data distribution units and a complete set of navigational sensors and meteorological equipment. A redundant laid out Ethernet bus configuration interconnects the multi-function consoles and sensors.
The communications system has a high-capacity digital communications switch, which interconnects the voice and data communications channels. The system provides internal communications or open conference lines and access to external communications with various radio links and land-based networks. The upgradeable high-performance combat system is based on a high-speed data network. The combat system architecture will enable future weapon systems to be integrated into the frigates. The ship's standard external communications include Link 11, Link 16, Link 22, JTID and JSAT tactical data links, allowing full interoperability with allied forces. Internal communications include messaging, conventional and wireless telephony, public address, closed circuit television, and internet and intranet ports.
The TSCE is an Open Architecture design. Designed to bind all the vessels systems together, the TSCE creates a shipboard enterprise network allowing seamless integration of all on-board systems. The network is makes use of the NW Canadian developed OMA Linux OS which is known for its ultra stability, and viral resistance. Multiple embedded single board computers are placed through out the vessel as well as three servers per zone. This allows for redundancy and task/load sharing. Are systems as well as data lines are shielded and armored.
The vessel makes use of the newly developed APAR/AESA based OWL-1A Multi-band radar system . This system makes use of an intergrated matrix of both active and passive sensors of multiple bands. The system operators in X-band, S-Band, L-band as well as I-band. This is done by the use of banks of multi-band modules that work in conjunction with each other and the signal processing units. The WODEN-1A system can vary its emissions not only in band used but can generate a broad blanket scan as well as generate pencil beams to focus in on targets.
The WODEN-1A provides multi-mission capabilities, supporting both long range, exoatmospheric detection, tracking and discrimination of ballistic missiles, as well as Area and Self Defense against air and surface threats.
For the Area Air Defense and Self Defense capability, the OWL-1A has increased sensitivity and clutter rejection capability is needed to detect, react to, and engage stressing Very Low Observable / Very Low Flyer (VLO/VLF) threats in the presence of heavy land, sea, and rain clutter.
This system provides high detection and excellent anti-jamming capabilities. The OWL-1A has a LPI (low probability of intercept) radar operating at I band surface search mode.
The OWL-1A D band radar provides very long range surveillance while the I band radar providing precise target tracking, a highly capable horizon search capability, and missile guidance using the Interrupted Continuous Wave Illumination (ICWI) technique, thus allowing guidance of 32 semi-active radar homing missiles in flight simultaneously, including 16 in the terminal guidance phase. The combat control system is similar to the old American Aegis system in that detection, identification and engagement can be completely automatic.
The WODEN-1A's L band is a long-range search radar. It is a multibeam radar, which uses multiple antenna elements to simultaneously generate multiple beams by digital beamforming. The beams' vertical directions are controlled electronically, stabilization against the ships movements (e.g. roll) is also done electronically. Horizontally direction is controlled mechanically by rotating the antenna array. The radar is able to detect targets up to 480km away in Extended Long Range (ELR) Mode. WODEN-1A radar is one of the most capable long-range radar in the world for detecting tactical targets, and provides options for low radar cross section ("stealth") target tracking.
Maximum detection ranges:
Maximal numbers of tracked targets:
The IUSW incorporates two types of sonar arrays in one automated system. The high frequency sonar provides in-stride mine avoidance capabilities, while the medium frequency sonar optimizes anti-submarine and torpedo defense operations. The use of sophisticated target algorithms better enables the vessel to engage enemy submarines and, at the same time, minimize crew headcount requirements. The sonar that will be required to achieve this goal includes the following:
Sonar - A dual-band sonar controlled by a highly automated computer system will be used to detect mines and submarines. The arrangement is optimized for supporting "blue water" and littoral anti-submarine warfare and includes:.
The vessel also has an extensive set of IR and Optical sensor systems. These systems are for the most part installed on the top of superstructure for greater range of view but are also mounted in conjunction with the individual weapons stations to provide additional search, tracking and targeting capabilities.
The primary system are the MSIS electro-optic surveillance and fire control system is fitted on the vessels, which contains an 8–12-micron thermal imager, TV camera and laser rangefinder. These units also contain a new third-generation thermal imager with increased sensitivity and resolution.
To work in conjunction with the MSIS systems, Sirius LR-IRST long-range dual-band IRST long-range infra-red surveillance and tracking sensors are also installed. The Sirius are installed on top of the mast tower, and provides additional horizon search capability against sea-skimming missiles, low flying aircraft, and small surface craft.
The electronic warfare suite is characterized by the latest generation of radar ESM (electronic support measures) and ECM (electronic countermeasures) architectures and implementation of new digital and microwave technologies.
The radar ESM component features very high sensitivity, very high accuracy direction finding and broadband digital receivers. The radar ECM component is based on phased array solid-state technology and features high specific transmitted power, fast reaction, multi-threats engagement capability and complete programmability of coherent and not coherent jamming techniques, due to the implementation of multiple broadband digital radio frequency memory (DRFM).
The NWC APECS II radar detection and jamming system can identify and jam up to 16 threats simultaneously. Detection range is 370km for ships and 93km for aircraft.
The various active countermeasures systems are mounted behind retractable hull hatches to help maintain the stealth features of the vessel. Upon activation the hatches open and the systems in question are deployed.
NW Canadian Next Gen vessels are equipped with the MASS (multi-ammunition softkill) decoy systems. Each MASS system can launch up to 32 omni-spectral projectiles in a time-staggered configuration against anti-ship missiles and guided projectiles to a range of 4km. The MASS decoy covers radar, infrared, electro-optic, laser and ultraviolet wavebands.
The main feature of the Tsunami class is it's large quantity of vertical launch cells.
A deck and hatch assembly at the top of the module protects the missile canisters during storage and the hatches open to permit missile launches. Each of the launch/storage modules is armored to protect the contents and the ship from said contents should a mishap occur. A detonation in the launch/storage cell is directed up blowing off the hatch and not within the confines of the ship. This design makes launchers and missiles resistant to battle damage while safely isolating them from crew and equipment spaces. Each of the silos also has in the event of fire its own independent Halon/Nitogren flood system as well as a water flood system. The entire silo in event of fire can be filled with gas, water or a mixture to ensure control of the fire.
More importantly, the HVLS enables all missiles to be on full stand-by at any given time, shortening the ship's response time.
HVLS is continually upgraded to incorporate new technology and integrate new missiles. Its modular electronic architecture allows faster, more economical migration to new missile systems by minimizing the need to re-qualify the launcher for every new missile
The Mk-200 HVLS makes use of a cold-launch system. The cold launching the missiles to a height of about 30m (where the weapon's main rocket motor sustainer ignites).
The advantage of the cold-launch system is in its safety: should a missile engine malfunction during launch, the cold-launch system can eject the missile thereby reducing or eliminating the threat.
Another advantage of the cold-launch system is its low life-cycle cost of the launching tubes: since the missile's engine ignites outside of the tube, the tube is not subject to extreme heat blast and enjoys a long life span. As missile size grows, the benefits of eject launch increase. Above a certain size, a missile booster cannot be safely ignited within the confines of a ship's hull.
The cold-launch system also adds to the vessels stealth operations. The hot launch exhaust does not come into contact with the vessel and heats exposed surfaces. The headed surfaces can promote detection by Thermal/IR sensors, and rapidly degrades the coating of the vessel.
The Tsunami class vessels are outfitted with 674 Vertical Launch System (HVLS) cells/silos.
VLS is continually upgraded to incorporate new technology and integrate new missiles. Its modular electronic architecture allows faster, more economical migration to new missile systems by minimizing the need to re-qualify the launcher for every new missile
The Tsunami class mounts two Quadruple Tube NWC Mk-901 Lightweight torpedo Launchers flush to the either side of the vessel for the deployment of light weight torpedoes of a diameter of 325mm or less. The Tsunami vessels in NW Canadian Naval service make use of the MU90 torpedo. Primary purpose is to target and destroy submarines, the torpedoes can also be used against surface vessels to great effect.
The MU90/IMPACT is an advanced lightweight anti-submarine torpedo designed to compete with and outperform the US-built Mark 46 in the anti-submarine role, and the MU90 Hard Kill version for anti-torpedo defense.
Among its many features, the MU90 is capable against any current or perceived threat, including a bottomed stationary mini-submarine, known versions of anechoic coatings and various decoys. It is also capable of launch speeds up to 400 knots, allowing it to be dropped from maritime patrol aircraft flying at high speeds, or rocket-assist launchers. Powered by an electric pump-jet, it can be run at "silent" speeds to avoid giving its location away to the submarine, or "dash" at speeds over 50 km/h. It uses a shaped charge warhead that can penetrate any known submarine hull, especially double hull designs, while remaining just as deadly in shallow waters where conventional warheads are less effective.
These launchers are mounted on the sides of the vessel. The "Killer Darts" are interceptor torpedoes that are designed primarily for intercepting and destroying incoming torpedoes, with a secondary function against small submersibles and divers. The launchers mounted between the exterior and interior hulls of surface vessels in retractable mounts. The launchers can only be reloaded in port or by tender ship. The Tsunami class mounts three launcher systems on either side below the waterline.
Two landing areas are located on the fantail aviation deck. Each of the landing areas is equipped with Recovery Assist, Secure and Traverse (RAST) system which allows deployment and recovery in high sea states. The just aft of the landing areas on the flight deck is a Helo In Flight Refueling (HIFR) point. This allows refuelling of a helo or VTOL aircraft while it is hovering overhead using a quick disconnect fitting which provides a manually operated emergency breakaway capability.
The hanger can accommodate normally eight medium sized aircraft however normal compliment is two helicopters. This allows for supply ship-based helicopters to resupply the Tsunami class vessel with additional safety considering the nature of their loads. If needed, the vessel could form an emergency barracks centre for up to 400 personnel or more than 1,000 civilians.