DRDO, PSU and Private Defence Sector News

[fire starter]

L & T Precision Monopulse Tracking Radar

The Precision Monopulse Tracking Radar (PMTR) is a state-of-the-art auto tracking radar designed for fast acquisition and tracking of satellite launch vehicles & re-entry vehicles or missiles.

PMTR is available in C-Band & S-Band versions in fixed installations & transportable configuration.

Key features:

Skin & Beacon mode tracking.

Open System VME64x Bus Architecture.

Touch-screen Operator Console.

FPGA based signal processing.

Real-time display, data storage & replay.

3 Channel Digital Receiver with high speed sampling.

IRIG-B or GPS Timing & Synchronization.

Coherent-On-Receive for Doppler extraction (optional).

Fixed installation or Transportable configuration.

Auto-levelling (Transportable version).

OpenGL & VxWorks for real-time operation.

Distributed processing on Dual Ethernet.

Automated Test and Calibration.

Electro Optics Tracking.

Star Calibration (Optional).

Typical Tracking Range

C-Band Transponder mode - 4300Km

S-Band Transponder mode - 3500Km

C-Band Skin mode - 260 Km

S-Band Skin mode - 180 Km

 

[cyclops]

Possibly, but i doubt PGM arty shells or rockets can outdo glidebombs or simpler directly guided drone munitions for point targets in cost:range:accuracy
View attachment 43817
Guided shells may prove too costly, compared to replacing forward observer with permanent spy sat (especially needed for LOC) feeding live aerial view of target directly to artillery crew.

I think guided shells have their own place. Being cheaper than suicide drones and guided mlrs they bridge the gap between them and normal arti rounds.

And let's say, an arti unit needs to quickly achieve dominance over a certain area; aided with proper intelligence, a smaller unit can start off with guided rounds, accurately strike the enemy and soften them before bludgeoning them with the regular stuff.

Also, a spy sat might not always be operational because of weather and other reasons.

 

[fire starter]

DRDO's PPDS-X... It is a portable sonar system capable of detecting potential threats like diver and diver delivery vehicle in shallow waters Can Identify d type of threat Can be deployed outboard a ship or at d harbor. It Consists of part an underwater unit and a shore unit

 

[Bleh]

I think guided shells have their own place. Being cheaper than suicide drones and guided mlrs they bridge the gap between them and normal arti rounds.

And let's say, an arti unit needs to quickly achieve dominance over a certain area; aided with proper intelligence, a smaller unit can start off with guided rounds, accurately strike the enemy and soften them before bludgeoning them with the regular stuff.

Also, a spy sat might not always be operational because of weather and other reasons.

I get it, but still those things aren't widely adopted because of cost reasons even by 1st world armies. They are satellite guided too, so will face similar challenges as spy sat "guided" ones. Also guided shells aren't jam-proof, but unguide ones are.

10 shells are cheaper than 1 guided shell, and real time satellite feed to arty crews (instead of the shell) may very well be the game-changer in future, allowing 5-7 of those unguided shells to fall with comparable precision.

The thing India really lacks right now is any sort of small (<100 kg) precision F&F airlaunched munition.

Our guided CAS weapons like LGB or SAAW are meant for larger static targets, rest are Ram ke bharose bombs. Nothing to blunt an armoured formation or bunkered/MMG-nest defence fortifications. Swarm drone are coming though and SANT already had range of 20km that can double with glide wings, but neither available yet.

 

[porky_kicker]

L&T 30mm combat module for upgradation of legacy BMP-1 , BMP-2 IFVs.

30mm rapid fire autocannon with 550 RPM. 2 ATGMs .

Digital FCS

Unmanned turret configuration with the gunner sitting below the turret .

Stabilised 3rd gen TI with LRF and day camera.

Latest HMI with multi function LCDs , consoles and joysticks.

 

[porky_kicker]

L&T 3D pulse doppler L band air surveillance radar for ships.

Range 400 km

 

[porky_kicker]

L&T Torpedo Launch Complex is designed to launch Heavy Weight Torpedoes from submarines and other underwater platforms, in both push-out and swim-out mode. The Torpedo Launch Complex comprises of:

Torpedo Tubes
A quick Loading Gear assembly
Torpedo Tube Preparation System

AFAIK generally push out mode is for launching missiles encapsulated in cannisters while swim out mode is for torpedoes.

 

[porky_kicker]

Naval LCA MK1 cockpit

 

[porky_kicker]

This I believe is the model of DRDO pulse detonation engine.

 

[Holy Triad]

IIT Madras designs AI drones for armed forces to counter and hack 'rogue drones'
IIT Madras researchers have designed a law enforcement drone for armed forces and other security agencies that could help them detect and counter rogue drones using AI algorithms.

How does this drone system work?
The IIT Madras researchers designed a visual-based tracking system using Deep Neural Networks (Artificial Intelligence) to secure airspaces and land stretches efficiently by employing a swarm of drones.

The motion detection algorithms are powered by AI and can detect motion even in dark conditions without the need of an IR (infrared) camera.
"The drone works by employing a software-defined radio and broadcasting spoofed GPS signals by making use of the ephemeris data of GNSS constellations," explained IIT Madras BTech student Vasu Gupta.

"The target drone's GPS sensor locks onto our fake radio station transmitting at a much higher power than the available satellite's transmission power. Following this, the drone generates fake GPS packets by mathematically modelling the time differences at the receiver's end," he said.

"Using four of such time differences, the GPS sensor calculates its 3D position and calibrates the rogue drones' time to our spoofed clock. This way, we alter the latitude, longitude, altitude and time of the rogue drones," the researcher said.



Algorithmically altering the 3D position allows us to move the target drone locally. Moreover, when a large variance is given in the spoofed GPS position, a failsafe (if any) is invoked at the target side which results in a safe landing of the target drone," explained Project Associate Rishabh Vashistha.

"We have tested this electronic countermeasure of ours against nearly all the civilian GPS receivers used by the UAV industry such as ublox, DJI inhouse GNSS and we have been able to take down the drones almost instantaneously (within 4-5 seconds)," he further said.

The IIT Madras team used an advancement of Kernelized Correlation Filters for tracking objects once they are detected and locked onto.
Such tracking features work on visual sensors like cameras and CMOS without using radars and sonars, the latter of which generally do not provide much informative data.



https://www.indiatoday.in/education...nter-and-hack-rogue-drones-1652813-2020-03-05

 

[ezsasa]

Just a thought:

We have been having these conversations that Indian defence forces give step motherly treatment to domestic defence Industry for many years now.

And most of the expert commentary of this subject usually restricted to reiteration of problem statement rather than solutions.

So here’s my submission towards a solution.
==========

A provision needs to be made in the business rules of MoD And defence forces that a minimum number of domestic defence equipment needs to be procured by one or two battalions of each arm of the forces. They are mandated by business rules to test the equipment in real conditions and give feed back to the OEM. OEM makes improvements and gives the equipment back to the regiment.

A contract is framed with OEM is signed specifically designed to cater to incorporation of feedback into the product. A separate budget is allotted to these type of procurement.

Constant refinement of the only way forward, iterative improvement is the name of the game because we don’t have battlefields to test our equipment.

 

[fire starter]

L&T Rocket Launcher WM-18

Rocket Launcher WM-18 is used for beach clearing operations by the Landing Ship Tank class of ships, before executing amphibious operations. The weapon system comprises two launcher mounts, one each, for port and starboard. This launcher is a complete electro-hydraulic system, stabilized against ship's roll and pitch. The Rocket Launcher WM-18 can be slaved to a Director Sight and is equipped with a weapon reloading system.

Salient Features

Single and Salvo firing modes.

Modular construction.

Standard configuration of 18 Rockets.

Hoist mechanism for automatic loading of rockets .

 

[fire starter]

Astra MK 2 Air to Air with dual pulse solid rocket motor will be tested this year . Most of the development work is completed. Astra Mk.2 will have a range of 160km (99mi), it will be equivalent to AIM-120 D.

 

[sorcerer]

HAL planning to set up logistics bases in Malaysia, Vietnam, Indonesia and Sri Lanka

• 
  
  New Delhi, Mar 8 (PTI) State-run aerospace behemoth Hindustan Aeronautics Ltd (HAL) is looking at setting up logistics bases in Malaysia, Vietnam, Indonesia and Sri Lanka as part of initiatives to woo the countries to buy India''s light combat aircraft Tejas and military helicopters.
  
  Chairman and Managing Director of HAL R Madhavan said the HAL is considering to build logistics bases in the four countries as they use a number of Russian-origin military aircraft and choppers whose serviceability is "very poor".
  
  He said the HAL is now seriously focusing on boosting exports in sync with the government''s priority and identified South East Asia, West Asia and North Africa to sell key platforms like Tejas, attack helicopter Rudra and advanced light helicopter Dhruv.
  
  Last month, Prime Minister Narendra Modi has set an ambitious defence export target of USD 5 billion dollars in the next five years and asked all the key military manufacturers to work hard to achieve the target.
  
  "We are looking at setting up maintenance facilities in Malaysia, Vietnam, Indonesia, Sri Lanka. We can give them a lot of support to as these countries use lot of platforms which are common to India, and their serviceability is very poor," he told PTI.
  
  The HAL top executive said the company is looking at setting up maintenance facilities in these four countries as having logistics bases is key to sell the products and ensure after-sales services.
  
  Without divulging details, Madhavan said a number of countries in West Asia are also in touch with the HAL for possible procurement of its key products.
  
  "We now are looking at exports very seriously. A sizeable number of countries are showing lots of interests in the platforms we are producing as they are world class. We are in talks with so many countries," said the HAL chief.
  
  Specifically, he said that Tejas has a "very good" export potential as it is a four-and-half generation fighter jet which can compete with some of the famous military jets in its class.
  
  The Tejas has been Developed by Aeronautical Development Agency and the HAL. The lifespan of the jet would be a minimum of 30 years just like any other frontline combat aircraft. The combat jets are classified under various generations depending on their avionics, capability and weapons systems. The current fleet of fighter jets with the IAF range from three-and-half generation to the fourth generation.
  
  The Indian Air Force has already placed an order for 40 Tejas and is likely to seal a contract "very soon" with HAL for another 83 aircraft at a cost of around Rs 38,000 crore.
  
  India is one of the largest importers of arms and military platforms globally. The government has been focusing significantly on promoting defence indigenisation by taking a slew of reform initiatives including liberalising FDI in defence sector.
  
  Source: PTI

 

[Raj Malhotra]

Astra MK 2 Air to Air with dual pulse solid rocket motor will be tested this year . Most of the development work is completed. Astra Mk.2 will have a range of 160km (99mi), it will be equivalent to AIM-120 D.View attachment 44112

Source pls?....................................................

 

[Narasimh]

Check out this coverage of defexpo by rstv..

 

[fire starter]

Various components of jet engines developed by Bharath Forge. In pictures High Pressure Disc(HP Disc). Low Pressure Compressor Disc (LPC Disk) and turbine shaft.

 

[Shadow]

.................................................

 

[Suryavanshi]

Various components of jet engines developed by Bharath Forge. In pictures High Pressure Disc(HP Disc). Low Pressure Compressor Disc (LPC Disk) and turbine shaft.
View attachment 44144 View attachment 44145 View attachment 44146

Goes to show just how hard it is to manufacture a Turbofan.

SCB is probably the pinnacle of Metallurgy in all its glory.

Only handful countries around the world have the IP for this feat.

Textron(USA)
General Electric(USA)
Pratt and Whittney(USA)
Honeywell(USA)
Rolls Royles(UK)
Safran(France)
Saturn(Russia)
MTU(Germany)

Ever wondered why the Chinese who can reverse engineer entire tanks, ships and Guns can't reverse enginner a turbofan?

It's because they simply can't!

U can't make a turbofan without understanding the complexity behind it.

U have to study the heat distrubution patterns of each and every component of the turbofan under different temperature and pressures.

Everything that u have studied since class 1 i.e. Differnetiaion, Integration, thermodynamics, fluid mechanics, bernoulli equation, newtonian physics, molecular chemistry, bessels formula, heat equation, metallurgy, electroplating, Neuman condition, boundary effect, casting, forging, structural analysis etc etc is put to the test here.

U can't build it unless u understand every single atom that makes it.

Yes u have to reinvent the wheel.

When Chinese make tech they just copy study the Metallurgy and make exact replica of the same component. Often the replica isnt upto the mark and the component when put into use under performs.

It's the same things as buying Adidas and Abibas.

Can u cook the same kind of food as your mother which she has mastered over yeras and u just started.
Of course u can cook it but it won't be the same taste.


Turbofan is probably the most costly machine in the world, no one is gonna give it to u for free.

Turbofan (4 to 10 M $)
MRI machine (1.5 to 5 M $)
Tunnel Bore (5 to 15 M $)

I consider Turbofan tech on the same priority level as that of a SSBN.

 

[AbRaj]

L&T 30mm combat module for upgradation of legacy BMP-1 , BMP-2 IFVs.

30mm rapid fire autocannon with 550 RPM. 2 ATGMs .

Digital FCS

Unmanned turret configuration with the gunner sitting below the turret .

Stabilised 3rd gen TI with LRF and day camera.

Latest HMI with multi function LCDs , consoles and joysticks.

View attachment 43990

Hay @porky_kicker . Do we have any prototype of Gatling gun?.
Why don’t we use them apart from Ak630 on our ships. It appears to be an excellent close in support weapon system.