Larsen & Toubro - Naval Defence Equipment and Systems

Larsen & Toubro (L&T) is an active enabler of India's indigenisation drive for defence equipment and systems. Its track record in the design, development and manufacture of integrated multi-disciplinary defence systems has led to its acceptance as a partner to the Indian armed forces and the Defence Research & Development Organization.

The government of India has granted L&T industrial licences for the design, development and manufacture of systems and sub-systems associated with:

• Warships, submarines and weapon platforms
• Electronic warfare systems, radar and sonar
• Combat vehicles
• Arms and armaments
• Airborne assemblies, UAVs and helicopters

L&T is geared to supply defence equipment and systems to international companies who secure large defence contracts, thereby enabling them meet their offset requirements.

Ship-based weapon launcher systems

L&T's product range, built through in-house R&D, includes ship-based weapon launcher and fire-control systems, including:

• Triple and twin-tube launchers for light and heavy-weight torpedoes
• Naval multi-barrel rocket launcher systems with stabilised platform
• Anti-ship missile launch systems

The salient features of the launch platform systems, designed and developed by L&T, include modular launch systems capable of azimuth and elevation movements, silent-mode operation, auto-leveling, all terrain operability, all-electric and electro-hydraulic servo drives, advanced electronic controls and ergonomic man-machine interfaces.

Naval engineering systems and supplies

L&T supplies a range of naval systems, including:

• Controllable pitch propeller systems
• Steering gears for warships
• Fin stabilisers for warships
• Helicopter landing grid and traversing systems
• Winch and handling systems for active / passive towed array sonar
• Anti-torpedo decoy sonar systems with customised handling systems
• Wet end integration and installation
• Specialised hull fabrication

Radar systems

L&T supplies radar systems for defence applications, including:

• High-power tracking radar systems (C&S band) for tracking of satellite launch and sounding rockets
• Radar subsystems such as antennas and pedestals with control system; high-voltage transmitters with pulse coding, digital receivers and signal processing; radar consoles and displays; and associated software

L&T has a unique ship-motion simulation test facility for naval systems such as radar antennas and have supplied mobile platforms for ground-based radars and ship motion (roll and pitch) stabilised platform for naval radar antennas.

Defence electronics systems

L&T designs and develops various defence electronics systems, including fire control systems, servo drives, embedded systems, man-machine interfaces, high-availability systems, custom-built electronic products for defence applications, and large, complex and multi-disciplinary integrated systems. We also design and manufacture quality avionics products for military aircraft.

Land-based weapon launch systems

L&T also manufactures land-based weapon launch systems including:

• Multi-mode universal missile launcher
• Multi-barrel rocket launcher
• Anti-tank guided missile carrier
• Quick reaction surface-to-air missile launcher
• Tactical battlefield missile launchers

L&T supplies missile systems and sub-systems, refurbishment / upgrade, ground support systems and testing of missiles. The metallic systems and subsystems are manufactured in exotic metals, including titanium, aluminum alloys, aluminum magnesium alloys, 15CdV6, AB2 and maraging steel. The composite systems and sub-systems are made using in-house facilities for design and development of advanced composites, backed-up by computer-aided simulation of multi-layered composite structures, characterisation of reinforcements and matrices, coupon testing, design and development of tooling, prototype manufacture, advanced nondestructive testing.

L&T manufactures composite air frames, missile transport launch canisters, nozzle liners and radome sections.

Shipbuilding and repair

L&T is currently executing major orders for heavy lift cargo vessels at its ship building facility located at its state-of-the-art integrated manufacturing complex at Hazira Works on India’s west coast. In addition, a shipbuilding and ship-repair yard is being set up near Ennore on India’s east coast for large tonnage vessels of up to 300,000dwt.

L&T plans to venture into construction of warships for the Navy, as well as the Coast Guard.

About L&T

Larsen & Toubro is a $7 billion technology, engineering, manufacturing and construction company with global operations. Its heavy engineering division is recognised as one of the top five heavy-equipment manufacturing organisations in the world.

Advanced engineering capabilities are backed by state-of-the-art manufacturing facilities in India and the Middle East. Its reputation for reliable performance and timely execution has led to strong international links with customers, process licensors and long-term collaboration partners.