Indian built Scorpene class submarine to carry critical DRDO systems

India’s defence establishment will be fully responsible for a DRDO-developed critical propulsion system that will go into the last two of the six Scorpene submarines being built under technology transfer at Mazagon Dock, Mumbai, say the original makers of the submarine. The system, called air-independent propulsion (AIP), enhances the underwater endurance of conventional (diesel-electric) submarines. Without it, they are forced to surface to periscope depth to recharge their batteries — a position where they are most susceptible to detec…