MILGEM Corvette Design
MILGEM Corvette is a monohull displacement vessel designed to meet the speed, seakeeping and stability requirements of Turkish Naval Forces Command. With a dimension of 99.00 m x 14.40 m x 3.59 m and displacement of 2000 tons, MILGEM Corvette has an unlimited operation capability at sea state 5 and limited capability at 6. MILGEM Corvette has a crew of 93 including the aviation crew and will also provide accommodation for 106 people.
MILGEM is designed to accommodate a 10 ton helicopter with platform, hangar and extensive service and handling equipment. The ship, which was designed to have a helicopter platform, hangar and support equipment required for S-70-B2 SeaHawk ASW helicopters, is capable of helicopter operation up to sea state 4 (including sea state 4). The helicopter is used for Surface Warfareand ASW purposes and equipped with radar, EO system and EW system along with numerous guided missiles and torpedoes. MILGEM has a day and night landing, securing and travers system, JP-5 refueling station and ammunition stores for helicopter operations.
The main propulsion system comprises 2 diesel engines (MTU 16V595TE90) and 1 gas turbine (CODAG) with a propulsion power of approx. 30,000 kWs, will allow a maximum speed of more than 29 knots. The propulsion power is transmitted through two controllable pitch propellers via the cross connected gearbox. MTBF (Mean Time Between Overhauls) of the engines is increased and the life cycle cost is reduced due to the capability that one diesel engine can drive two shafts at cruising speed. Main Propulsion System reliability at all conditions is to be kept at the maximum possible level. The fuel capacity of the ship is 175 tons. The range of the ship is 3500 NM with 15 kts. cruise speed. Provisional endurance is 21 days with replenishment.
Air defence, anti-submarine warfare and surface engagement capability are provided through the weapon systems integrated on the ship. There is 1 x 76 mm Oto Melara main gun which is controlled by the gun fire control system developed by ASELSAN, 2 x 12.7 mm machine guns to be mounted on ASELSAN manufactured STAMP (Stabilized Machine Gun Platform), 8 x harpoon surface to surface missiles, 21 x RAM PDMS and 2x 324 mm Mk. 32 twin launchers for Mk.56 torpedoes, on HEYBELIADA.
Turkish companies ASELSAN and HAVELSAN are responsible for the development and integration of the combat systems. In this respect, there will be 3D search and track radar, fire control radar, navigation radars, sonar, EW system, laser/RF systems, chaff and ASW jammers, SatCom, ECDIS/WECDIS, GPS, LAN, on the ship. The ship utilizes X-Band SatCom naval terminals, electronic support measurement system, laser warning systems, ASELFLIR-300 electro-optic director and internal and external communication system developed and produced by ASELSAN. The combat management system has been developed by HAVELSAN as well as the ship navigation sensor&data distribution system and message handling system. The sonar suite has been designed and developed by TÜBITAK (The Scientific and Technological Research Council of Turkey). TÜBITAK is also responsible for the design, development and production of the hydrophone and degaussing system as well as performing the IR signature forecast and management and electromagnetic compatibility and reduction of electromagnetic interference analyses.
MILGEM has a fully distributed Combat Management System (CMS) capable of collecting information from all sensors on-board. CMS processes the information and assigns weapons accordingly. CMS also shares information with other units in the task force via tactical data links. MILGEM’s CMS infrastructure consists of dual distributed data bus covering the whole ship and its open system architecture has the capacity to be upgraded to inherent new systems and capabilities.
MILGEM is designed with maximum national contribution, utilizing state of the art technologies to reduce Radar Cross Section (RCS), Infrared Signature, Magnetic Signature and Underwater Noise Level. In order to achieve this goal, early in the ship design phase a “Signature Management” methodology is established. Hull and superstructure geometry is evaluated with computer aided Radar Cross Section estimation tools. Necessary precautions are taken in the design to have a low IR signature profile in order to reduce the difference between MILGEM’s IR signature and environment.
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