India’s 4th Generation Deep-Ocean Submersible Matsya-6000 clears wet tests. Tests pave the way for shallow-water demonstrations at depths reaching up to 500 meters by the end of 2025. The cutting-edge submersible is engineered to accommodate three humans within its compact 2.1-meter diameter spherical hull, marking a significant milestone in India’s ocean exploration capabilities. It also includes a sophisticated power distribution network, along with advanced underwater navigation devices. Communication systems include an acoustic modem, underwater telephone, and VHF for surface communication, and underwater acoustic positioning and GPS for precise surface location tracking. All these subsystems have been indigenously designed and are currently undergoing thorough integration and qualification testing, the statement added. The tests aimed to meticulously assess Matsya’s performance across several critical parameters, including power and control networks, floatation and stability of the vehicle, human support and safety systems, and manoeuvrability within limited degrees of freedom, specifically forward and reverse motion. The demonstration phase featured eight dives in total, comprising five unmanned dives and five manned dives. Each manned dive was rigorously qualified, ensuring the reliability of the life support system. Due to the restricted water depth in the harbour, underwater voice communication was less effective, highlighting the necessity for further testing at greater depths to enhance confidence in shallow- water operations.
