DRDO, PSU and Private Defence Sector News

[Karthi]

CMERI successfully trialled its AUV-500 prototype from the research vessel Sindhu Sadhna – a vessel owned by CSIR’s National Institute of Oceanography (NIO) in Goa – some 90 n miles off Goa in March 2017.

The AUV-500 is the culmination of a R&D programme that was initiated in April 2012, which sought to develop a working prototype capable of operating up to a depth of 500 to 1,000 m. The AUV-500 is a 3.7 m long torpedo-shaped vehicle with an overall diameter of about 0.5 m and a weight of 400 kg in air.

The system has a positive buoyancy of about 5–7 kg when underwater and is actuated by three thrusters and actuation fins to control the movements. The vehicle employs radio frequency (RF) communication when surfaced and acoustic communication when submerged. It is also equipped with several navigational sensors that includes inertial navigation system (INS), Doppler velocity log (DVL), depth sensor, altimeter, and acoustic positioning system. It can also carry mission payloads such as an underwater camera, lamp and conductivity, temperature, and depth (CTD) sensors.

 

[Holy Triad]

Researchers in Materials Engineering have designed a novel nanostructure that can act as a shield against electromagnetic interference, a persistent issue that plagues modern electronics. https://iisc.ac.in/robust-nanostructures-for-emi-shielding/…


Robust nanostructures for EMI shielding
– Gouri Patil






Electro-magnetic interference (EMI) is a persistent issue that plagues modern electronics as it is the main source of noise, disrupting the circuits. The efficiency and robustness of existing EMI shielding materials are quite low, which makes them ill-suited for high-end electronics. To overcome this limitation, researchers led by Suryasarathi Bose in the Department of Materials Engineering, IISc, have designed a novel nanostructure involving a polymer and a blend of nanocomposites.

They have incorporated a conducting carbon nanosphere (CNS) as the core and iron oxide (Fe3O4) and silica (SiO2) as shell materials to develop a core-dual-shell nanostructure. Multiple nanocomposites were integrated in a polymer matrix of polyvinylidene fluoride (PVDF), resulting in EMI shields with highly effective architectures.

The team designed many core-shell configurations and compared their efficiencies. They found that CNS@SiO2@Fe3O4 showed maximum attenuation of incoming electromagnetic radiation ‒ a remarkable 99%. Additionally, these core-dual-shell structures were effective in blocking ultraviolet radiation (both UVA and UVB) up to 99.9%.

The material, apart from being an effective shield, is also durable at high temperature and under mechanical stress, making it suitable for flexible electronics. These structures with multiple interfaces and reduced thickness are desirable for the efficient functioning of devices used for a wide variety of applications, including 5G communication systems and medical equipment.

Indian Institute of Science

IISc is the premier institute for advanced scientific and technological research and education in India.

iisc.ac.in

 

[Abhay Rajput 02]

Then bring in a compatible platform to compete with it.

There are . Tata trucks unlike tatra trucks are made in india not screwgiri . They are cheaper and most importantly they are not decades old trucks.

Tata Motors to deliver first lot of all terrain defence vehicles by December

The company has won Rs 900 crore order for over 1,200 all terrain '6 by 6' heavy mobility vehicles from the Defence Ministry to be delivered over next two years

www.google.com

Here is the link. Read carefully

 

[sorcerer]

BEML to build trucks for Pinaka rocket launchers

BEML to build trucks for Pinaka rocket launchers

BENGALURU: Bengaluru-headquartered defence PSU Bharat Earth Movers Limited (BEML) has received an order from the Ministry of Defence (MoD) for supply of 330 Hi

www.newindianexpress.com

 

[fire starter]

 

[Akula]

So, it will now have 4 intakes.

 

[Sridhar_TN]

Question to the learned members here. Can this
kind of research be turned into real world products. Asking cause we here a lot about such kind research but never here of them being converted into real world products.

Super capacitors are the basis for battery related technology and DEW systems. Creating a working prototype for that is not only able to store large amounts of energy, but also allow to discharge at a high rate would be phenomenal for DEW systems.

 

[Chinmoy]

There are . Tata trucks unlike tatra trucks are made in india not screwgiri . They are cheaper and most importantly they are not decades old trucks.

Tata Motors to deliver first lot of all terrain defence vehicles by December

The company has won Rs 900 crore order for over 1,200 all terrain '6 by 6' heavy mobility vehicles from the Defence Ministry to be delivered over next two years

www.google.com

Here is the link. Read carefully

I am talking about technical specs of both.
Even in TATA trucks, the most important part, THE ENGINE, is not Indian. But even using the same engine as TATRA, why TATA is not favored for offroad heavy hauling purpose?

 

[Tuco]

Super capacitors are the basis for battery related technology and DEW systems. Creating a working prototype for that is not only able to store large amounts of energy, but also allow to discharge at a high rate would be phenomenal for DEW systems.

Agreed, couple of days back I read something about Li fe ion research being done by iisc bang which could revolutionize battery tech. But I am asking about research being turned into consumer grade products.

 

[Karthi]

Agreed, couple of days back I read something about Li fe ion research being done by iisc bang which could revolutionize battery tech. But I am asking about research being turned into consumer grade products.

Mass production of goods is another thing , we need an industrial and skilled workers to materialize. And need market for such new products.

 

[fire starter]

Agreed, couple of days back I read something about Li fe ion research being done by iisc bang which could revolutionize battery tech. But I am asking about research being turned into consumer grade products.

we have also developed 3rd gen SCB but main problem is mass manufacturing them.

 

[fire starter]

 

[fire starter]

 

[Akula]

Can we replace Nal Saras Turboprops with HTFE-25?

 

[fire starter]

Can we replace Nal Saras Turboprops with HTFE-25?

yes project is going on to develop a turboprop engine for saras.

 

[porky_kicker]

Reposting

 

[patriots]

Tender issued for vlsrsam canister and launcher....
Vlsrsam ..sfdr and star missile are progressing well

 

[porky_kicker]

Brahmos missile replenishment vehicle , with integrated crane

 

[porky_kicker]

Swathi radar power cum BITE vehicle

 

[Akula]

Brahmos missile replenishment vehicle , with integrated crane

View attachment 57893

Looks similar to S400 air defence system.