Indian Unmanned Naval Vessel Developments

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National Institute of Ocean Technology operating Hugin 6000.

 
HEAUV is certainly progressing well, NSTL seems to have tendered out for the portable underwater vehicle simulator, the ground control station, underwater laser range tracker, speed tracker etc. We know that there is separate swarm project and other application as well. Lets see how things go ahead.
 
underwater vehicle, possibly unmanned
possibly related with the 4 shell structure of the other vehicle if not mistaken
 

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NSTL has issued a tender for Li-ion batteries & battery management system (BMS) for the under-development High Endurance Autonomous Underwater Vehicle (HEAUV):
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The selected Indian company will receive NSTL's TOT for the Li-ion battery. Specs of the battery:
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Delivery schedule for the battery & BMS:
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Now onto the motor. A 8 kW Permanent Magnet Synchronous Motor (PMSM) with Inverter drive will be used to rotate the propulsion shaft. The shaft has a conventional 2 bladed propeller set up. The propulsion component of the HEAUV looks like this:
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Tender's list of deliverables:
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The specs of the PSMS motor:
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DRDO's High Endurance Autonomous Underwater Vehicle (HEAUV) successfully conducted it maiden surface run:
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Video:
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Its primary mission would be ASW, MCM & underwater ISR. Going by the size, this thing should have endurance to go underwater for weeks.
Turns out I had some old tender documents of the HEAUV. Propulsion unit is a single 8 kW PSMC motor mated with a 150 V, 320 kwh Li-ion battery. 7 units of the motor, 3 units of the battery & a number of other related equipment were acquired. Theoretically this battery can run the motor at peak torque setting continuously for 40 hrs. Of course, in actual use the AUV won't be doing peak speed constantly for 40 hrs.

Also, are those black panels side mounted sonars?

The smaller black panels at the front & on the sides are probably underwater obstacle avoidance sonars.

Update:

Article from alphadefence giving us the specs of the HEAUV:

High Endurance Autonomous Underwater Vehicle (HEAUV)

By alphadefense.in
Mar 12, 2024
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Last week, in a resounding triumph for India’s Defence Research and Development Organisation (DRDO), a momentous milestone has been reached with the flawless inaugural surface run of the High Endurance Autonomous Underwater Vehicle (HEAUV) at the venerable Cochin Shipyard’s International Ship Repair Facility (ISRF) Jetty in Kochi.

This heralds a pivotal stride forward in fortifying the nation’s prowess in indigenous underwater exploration and defense capabilities.

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Distinguished by its imposing stature, the HEAUV stands as a formidable underwater asset, weighing a substantial 6 tons. Possessing a commanding length of 9.75 meters and a diameter of 1 meter, its operational envelope is nothing short of impressive. With a remarkable diving capacity of up to 300 meters, the HEAUV exhibits an extraordinary endurance, capable of sustained operations for 15 days at a cruising speed of 3 knots, while achieving a noteworthy maximum speed of 8 knots.

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The HEAUV’s design encompasses a versatile array of mission capabilities, including Anti-Submarine Warfare (ASW). Outfitted with cutting-edge sensors, this autonomous marvel assumes a pivotal role in the detection and tracking of adversary submarines. At this moment it isnt clear if the system is capable of engaging the target with torpedo or a similar weapon.

Furthermore, its intrinsic suitability for Mine Counter Measures (MCM) is unrivaled, owing to its autonomous navigation capabilities in underwater environments, rendering it an ideal candidate for mine detection and disposal operations. This becomes even more crucial as Indian navy do not have a mine countermeasure vessel in traditional landscape.

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In the realm of Intelligence, Surveillance, and Reconnaissance (ISR), the HEAUV stands poised for excellence. By seamlessly integrating with sonar, Electro Optical Systems and electronic intelligence (ELINT) systems, it becomes a stalwart instrument for comprehensive underwater data collection, thereby reinforcing India’s strategic intelligence capabilities.

Beyond its military applications, the HEAUV demonstrates its acumen in bathymetry—a discipline where it excels. This underwater drone adeptly charts the ocean’s topography, meticulously mapping the seabed and generating intricate profiles of the ocean floor. This proficiency not only enhances scientific understanding but also opens avenues for broader applications in environmental monitoring and resource management.

In this singular achievement, India’s DRDO has not only asserted its technological prowess but has also underscored the nation’s commitment to advancing maritime innovation on a global scale. The successful deployment of the HEAUV not only augments India’s defensive capabilities but also propels the nation into a pioneering role in the frontier of autonomous underwater technologies.

High Endurance Autonomous Underwater Vehicle (HEAUV) - alphadefense.in


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We got some specs of the Matangi USV:
Length: 13 m
Fuel capacity: 1200 liters
Range: 1600 km +
Hull types: Aluminum alloy hull (for ISR missions), Glass fiber reinforced composite (for MCM), Reinforced Kevlar (for ASW).
Missions: ISR, ASW, MCM
Sensors/Comms: Solid state doppler radar, possible EO/IR sights, SATCOMs, collision avoidance systems.
Weapons: 12.7 mm RCWS, Loitering munitions, Light torpedoes.

Domestically designed & manufactured except the engines.