The aft section of the superstructure can accommodate a full-service helicopter hangar to go along with the stern-based helicopter pad (servicing a single navalized helicopter aircraft). Beyond this is a collection of Surface-to-Air Missile (SAM) launchers and, aft of these installations, is the low-profile smoke funnel arrangement over midships. Aft of this is a stepped hull superstructure which runs up to the integrated bridge section which hosts the integrated main mast mounting various communications and sensor fits. Inherent stealth features include an enclosed, low-profile smoke funnel, enclosed/integrated main mast, and slab-sided hull superstructure.Ī turreted deck gun is set over the forecastle in the "A" position. All are in active service as of this writing (2019).Īt the heart of the Sigma-class design is a modular approach - the vessel can be built to suit the needs of a particular customer and the end-product can cover such types as fast-attack corvette, standard ocean-going corvette, off-shore patrol vessel, or basic frigate fighting forms. Morocco has access to RMNS Tarik Ben Ziyad (613), RMNS Sultan Moulay Ismail (614), and RMNS Allal Ben Abdellah (615). Indonesia vessels are KRI Diponegoro (365), KRI Sultan Hasanuddin (366), KRI Sultan Iskandar Muda (367), and KRI Frans Kaisiepo (368). Building began in 2005 and the first vessels were commissioned in 2007. Eighteen of the type were originally planned with ten having been completed and one being cancelled (Vietnamese Navy).
The class is currently in inventory with the Indonesian Navy, the Mexican Navy, and the Royal Moroccan Navy. The Sigma-class is a modular warship design originating from Damen Schelde Naval Shipbuilding of the Netherlands and is intended primarily for export sale.
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