Saab has proposed its Lightweight Integrated Mast (SLIM) to the Indian Navy as an advanced solution for modern warship sensor integration, reduced radar visibility, and optimized top-deck design. The system aligns with India’s shift toward network-centric naval warfare, where data fusion and signature control are as important as weapon systems. Unlike conventional mast layouts that distribute radars, antennas, and electronic systems separately, SLIM combines all these elements into a single composite, pre-integrated mast module. This reduces installation complexity and ensures that all sensors function as a unified, interference-optimized system. The design draws from Saab’s experience with Visby-class stealth corvettes, using carbon-fiber composite materials to reduce weight and improve vessel stability. Additionally, the structure lowers radar cross-section by minimizing reflective surfaces and improving stealth shaping. Saab also offers a turnkey integration model, taking responsibility for sensor performance, electromagnetic compatibility, and structural integration. This reduces technical risk for shipbuilders and ensures seamless coordination between radar, communication, and electronic warfare systems. SLIM is modular and scalable, making it suitable for multiple ship classes, including corvettes, frigates, and larger surface combatants. It is already being deployed in Finnish Pohjanmaa-class corvettes and upgraded Swedish Gävle-class vessels, demonstrating its operational viability.
