The IVER HUITFELDT CLASS Modular frigates FLEXIBILITY Modular design enables client choice of role Client sensor and weapon choice Propulsion options Flexible space for additional accommodation or weapons/sensors AFFORDABILITY Designed for cost efficient production and assembly Fuel efficient system options Modular design allows cost effective maintenance and upgrade work RELIABILITY Commercial shipbuilding principles Proven COTS equipment History of on time and on budget delivery Combat proven design 4 2 7M 8 6 4 2 6M 8 6 4 2 4M 8 6 4 2 3M 4 2 7M 8 6 4 2 6M 8 6 4 2 4M 8 6 4 2 3M 4 2 7M 8 6 4 2 6M 8 6 4 2 4M 8 6 4 2 3M The IVER HUITFELDT CLASS frigates are flexible multirole frigates built for an uncertain future. The flexible design is an excellent platform for a surface combatant whether it is intended for an Antisubmarine Warfare (ASW) or Area Air Defense (AAD) role. The IVER HUITFELDT CLASS design combines the best from merchant shipbuilding with naval ship design and appears as a modern “wide beam” frigate. The design is based on modularity, enabling separation between platform and payload. The modularity provides the Royal Danish Navy (RDN) with unique advantages: The payload can be adapted to the specific mission Different lifetime of components can be handled individually system by system – long “off-hire” periods for midlife updates are eliminated with an increase in capability throughout the lifetime Payload and platform can be maintained independently – shorter dry docking periods and significant increase in available operability The modularity concept is originally based on the STANFLEX concept developed by the RDN in the 1980’s. STANFLEX is a modular mission payload which is built on a common combat management system and containerized payload. STANFLEX has provided the RDN with the ability to reuse modules from older ships and other ship classes. The concept provided inspiration or innovation beyond the STANFLEX concept by introducing new modularity based on 10” and 20” ISO racks. The ships are based on commercial shipbuilding principles where high quality COTS components are used without compromizing the capability and/or integrity of the warships. For example, high quality commercial components with worldwide access to spares in a global supply chain, are mounted on on shock rafts or in shock-mounted racks in order to meet the military standards. The three frigates of the IIVER HUITFELDT CLASS are all shock tested in accordance with NATO STANAG 4137. OMT has built in the best from the navy as well as the merchant world in the hull design. This resulted in a wide beam design with excellent energy efficiency and sea-keeping performance. The wide beam design meets all naval stability requirements and leaves future upgrades with an open choice of weapon and sensor systems. The wide beam design is also an advantage in the building phase, as the extra width is used for easy access in dedicated cable and piping spaces, which results in a lower building price. The hull structure meets DNV ice class C standards and the hull is divided into five gas-tight citadels with external wash systems for chemical warfare. It features a degaussing system for mine avoidance and sensitive electronic equipment is EMC protected. Stealth low radar signature design and low infrared exhaust signature. CODAD propulsion set-up with two controllable pitch propellers, each connected to two diesel engines delivering 8.2 MW each (32.8 Mw in total) and a speed of more than 29 knots. The wide beam design can be customized to the extreme: The number of complements can vary from 166 to 257, the hangar can be extended to accommodate two medium-sized helicopters, and any combination of weapon and sensor supplies can be integrated in the design and even the propulsion line can be customized from the modern energy efficient CODLAD solution to the typically navy CODLAG solution, both optimized for ASW. 2
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