The midget sub is fitted with twin torpedo tubes & advanced conformal sonar & radio electronic sensors. This is ideal for special forces.
Susceptibility to subsurface attacks has led the Indian Navy to regenerate interest in procuring two mini-submarines from private manufacturer Larsen & Toubro (L&T) Defence. This diesel-electric midget submarine designed and developed by L&T Defence is called the SOV400. An IN order could extend to six vessels, Shephard has learned.
Displacing less than 490t, the 44m-long SOV400 is fitted with a conformal-array sonar and radio frequency sensors for detection, surveillance, planting limpet mines, communication and interception.
The SOV400 is primarily meant for deployment and recovery of special forces, and thus it can carry two four-person swimmer delivery vehicles.
The SOV-400 appears optimized for Special Forces missions, carrying 10 SF operators. Two 4-person SDVs (Swimmer Delivery Vehicles) can be hung on the lower hull. This gives the SF combat swimmers a means to conduct longer-endurance missions. So for a cross-beach mission a 4-6 person team could be inserted by the two SDVs, with two remaining as drivers. 2 more SF personnel would remain aboard the SOV-400 to coordinate and support the mission according to a report by defence website Covert Shores.
For self-defence, or targets of opportunity, the SOV-400 is armed with two 533mm (21″) heavyweight torpedoes carried externally. There is a modest sonar in the bow, but logically this will primarily be for surface targets. The exact model of torpedo is unspecified and likely to be adaptable to customer needs.