DRDO and PSU's

Cont.

Recent Technical Achievements.

1)
In the project titled, “Design of efficient metamaterial-based radar absorbing materials for stealth applications using 3D printing”, the PI, Prof. Bratin Ghosh, IIT Kharagpur, has developed metamaterial-
based absorbers with reduced thickness configurations, having 80% absorption in a wider frequency range and also sensitive to wider range of incident signal angles, compared to traditional radar
absorbing materials.

2) In the project titled, “Plasma sprayed carbon nanotube reinforced molybdenum disulphide anti-friction coating”, the PI, Prof. Anup Kumar Keshri, IIT Patna, aimed to fabricate the carbon nanotube reinforced molybdenum disulphide anti-friction coating with enhanced wear properties using plasma spray technique.

3) In the project titled, “Structural lithium-based rechargeable batteries for high voltage applications”, the PI, Prof. Surendra Kumar Martha, IIT Hyderabad, aimed at utilization of pitch derived carbon fibers (P-CF) in structural batteries (dual carbon batteries (DCBs) and lithium-ion batteries (LIBs)), capable of long-term energy storage using cheaper raw materials The developed 5V DCB utilize self-standing carbon fiber mats as both electrodes (cathode and anode)using the same non-aqueous LIB electrolyte.
The novel dual carbon battery consisting of zero transition metal is environmentally benign, light and may cut down the overall battery cost. The fabricated cell provides an energy density of 100 Watt￾hours per kilogram. The capacity and energy density can be further improved by optimizing electrolyte concentration, operation temperature, charge-discharge rate etc.


Very interesting project regarding detection of submarines from satellite.

Remote sensing data from earth orbiting satellites can also be effectively used for detection of underwater moving submarines. In one of the ongoing projects (Dr S. Arivazhagan, PI, Mepco
Schlenk Engineering College, Sivakasi) efforts are being made to simulate Synthetic Aperture Radar (SAR) images of the sea surface for detection of underwater target motion using theoretical studies, Computational Fluid Dynamics (CFD) and other software tools. This project is also expected to yield
fruitful results on its completion.

Scientific computing panel.

Technical Achievements.

1)
PI Dr. Manoj Khare, C-DAC Pune completed the project entitled “PANORMA II – GIS Based Advanced
Marine Weather Decision Support System”, developed for DNOM. Processing numerical global weather
and ocean forecasts, satellite images, PANORMA provides up to 10 days with 3-D visualization. An advanced data compression technique was developed for which a US Patent has been granted.
PANORMA acts as end-to-end operational decision support system for Naval Command and Onboard ships.

ii) PI Haneesh Sankar TP, C-DAC Thiruvananthapuram completed the project “Indigenous Doppler Velocity
Log (IDVL)”. Doppler Velocity Log is a device to measure the velocity of ships or submarine in water using Doppler effect.

iii) Dr. S. Dominic (NIT, Tiruchirappalli), PI has completed the project “Artificial Intelligence based Integrated
Logistics Management System (ILMS) for Indian Navy (Air)”. It predicts Annual Revenue Demand using AI techniques. The objectives were to automatically recommend items for indigenization, to perform defect analysis etc.

iv) In the project “Machine Learning models for underwater image enhancement and content analysis”, PI
Dr. M H Supriya from CUSAT (Cochin University of Science & Technology), Kochi used AI/ML framework.
The objectives related to underwater image enhancement and object segmentation/classification with
the aim to deploy in Autonomous underwater vehicles. The delivered outputs are: Machine learning
models for underwater image enhancement, information extraction from the recorded images,
semantic and instance segmentations.

There are two ongoing projects.

i) PI, C. Balan, C-DAC Thiruvananthapuram is pursuing the project “Development of a software framework for on-the-fly analysis station for Darpan simulations”. The main objectives are to explore the suitability of any existing architectural framework for realizing on-the-fly analysis of models, to explore the different technologies that can be used for achieving real-time performance in network-based system .

ii) PI Dr. Athira Nambiar (SRM Institute of Science & Technology) is pursuing the project entitled “Explainable AI tools for detection and classification of SONAR images for real world defence”. The
main objective of the project is development of Explainable AI models, development of new dataset for
the acoustic research community, real world deployment of the proposed model in NPOL, Kochi.

Technical Achievements hydro vibro acoustic panel.


i) TarunChandrayadula, IITM,built physics based acoustic models to describe the variability in long range travel times and intensities of broadband pulses due to oceanographic processes such as internal tides and waves and validated them using experimental results. This is of use for detection of submarines
using sonar.

ii) Dhiman Chaterjee, IITM, measured and computed the drag and pressure coefficients for unsteady two￾phase cross-flow past cylinders under cavitating condition and investigated the pressure fluctuations and radiated sound level. This is a preliminary study for understanding noise due to propeller cavitation.

iii) Ramajeyathilagam, HITS, Chennai, numerically and experimentally studied the effect of shock due to underwater explosions on metal and FRP plates. This is of use for designing hulls of ships and
submarines to withstand nearby underwater explosions.

iv) R. Vijayakumar and Suresh Rajendran, IITM, numerically and experimentally studied the noise radiated
by marine propellerswith various geometric characteristics operating in non-cavitating regime under
open-water uniform flow conditions. This is of use for reducing noise due to propellers.

v) Suresh Rajendran and R. Vijayakumar, IITM, developed time-domain potential flow and RANS based numerical methods based on OpenFOAM to study the hydroelastic responses of ships in extreme sea conditions and analysed the slamming load on sonar domes. This is of use for ship and sonar dome design.

vi) Ritwick Ghoshal, IITKGP, experimentally studied collapse of bubbles to better understand the noise
from cavitating propellers. The effect of plane surfaces and shark-skin surfaces near the bubbles was studied. This is of use for understanding propeller cavitation noise.

Technical Achievements of marine system panel.

Design and Development of Bio-Inspired Network of AUVs capable of operations at up to 30 m depth.

The Development, Testing and Performance Analysis of Batoid-inspired Autonomous Underwater Vehicle

Quasi-distributed side-hole packaged Fiber Bragg grating (FBG) sensor system for under water acoustic sensing

Design and development of MEMS gyroscope for naval applications

Propeller Shaft Instabilities and Mode localization in propeller blades

Design and development of an intelligent underwater vehicle with a manipulator for offshore oil/gas and other marine applications.

Silicon fluxgate magnetometers for military applications – New project
IMG_20240704_103902.jpg
 
Great news fellas.


‘…processing of large-size rocket motors in the 50T class of the HD 1.3 category.’ .… first stage of VEDA.

‘the 10T class of HD 1.1 category’ ….. first stage of K5.

Both HD 1.1 and 1.3 are Hydroxy terminated Polybutadiene (HTPB) based composite solid propellants whose ISP have been enhanced through the application of active binder system wherein the energetics of the polymeric binder like Nitrile Butadiene rubber (NBR) is improved with its plasticisation by nitrate esters such as diethylene glycol dinitrates DEGDN and Triethylene glycol dinitrate TEGDN.

As a result, HD 1.3 and 1.1 have specific impulses of 252 s and 243 s which is 10 sec higher than HTPB/Al/AP based solid propellants.

Things have finally started to move at warp speeds.

HGV under Project DHVANI may have been tested already or will be tested soon.

HCM under Project VISHNU will have its first powered flight next year.

FB_IMG_1720092660374.jpg
 
Hi, there old friends, good to have @fire starter sir back, hope @godofparadoxes also join.
First, of all thankyou from my body for keeping the spirit alive.
If that PK defense can survive, we the citizens of 3rd world largest economy should have our say in internet.
Anyway, back to discussions, that idrw site published news article regarding Stryker, saying Army prefers Stryker favorably.
Let me tell you any newbie, that's how propaganda or product favorable articles are written, don't fall for that.
 

with capital outlay for modernisation of 1.67 lakh crore ₹ (inclusive of infra) for 2023-24,
domestic production worth 1.27 lakh crore₹,
exports of 21000 crore ₹,
that's around 1.05 lakh crore of domestic consumption from domestic industry.

when deliveries of LCA and LCH start, the number will do even higher.

and possibly, Indian defence industry crossed turkish defence industry interms of production value in 2023-24.
====
Capital outlay pertaining to modernisation and infrastructure development has been increased to Rs 1.63 lakh crore.


Defence exports touch record Rs 21,083 crore in FY 2023-24

 
Sabko Hafta dena padega….

Which defence analyst or strategic affairs commentator in his infinite wisdom has made this statement of Stryker being an ICV while WhAP is only an APC. The person must have been suffering from retrograde amnesia OR he doesn’t have a clue OR he is deliberately being obtuse.

DRDO TATA WhAP ,also known as Kestrel is a modular versatile platform which can be configured to meet diverse mission requirements. WhAP can be easily reconfigured into an Infantry Combat vehicle by installing the Elbit UT30mk2 turret. With a 30 mm Mk44 Bushmaster along with a coaxial 7.62 mm MG(Negev NG7) plus 4th or 5th gen F&F ATGM like Spike LR/ LR II along with its own EO suite- panoramic standalone TI , this turret will make Kestrel a world beater in it segment and will give GD Stryker a run for its money. Elbit already has JV and MoU with several Indian OEM and BEL and the turret can be manufactured here in India initially from SKD,CKD and then from raw material stage. We can swap the Bushmaster for the old dependable Russian Gryazev Shipunov .

OR we can install the venerable time tested BMP-2 turret with its 30 mm 2A42 cannon and 7.62 mm coaxial PKT on WhAP. It’s already under production at AVNL Medak ie erstwhile OFB Medak. Dirt cheap, robust rugged and dependable like all things Russian.

With home mad solutions available at both ends of the cost and quality spectrum, why is there a sudden irresistible itch to buy 530 Strykers ( off the shelf import of a few nos followed by licensed manufacture here )?

Are we paying hafta for the American generosity and largesse in the form of Congress’s approval for 80 percent Tech transfer in the HAL GE F414INS6 engine deal ? Or is this because Washington has been benevolent and kind and allowed us third world lowly Indians to buy cheap crude from Moscow ??

Anyways, let’s see how things pan out in the coming months.

PS- Stryker isn’t amphibious which is one of the GSQR of Indian Army. Kestrel is amphibious upto a certain GVW. We need an amphibious platform to navigate the riverine terrain of Pakistani Punjab and the marshlands of Gulf of Kutch. Do remember that some of these are meant for recce mech inf units. So the chances of this Stryker deal going through is slim unless this is Hafta payment to Washington DC .

We could have bought another 6 Poseidons and 15 more Chinooks as hafta. Stryker is a bad deal through and through.



https://t.co/5ZbVsidoEe
 
Sabko Hafta dena padega….

Which defence analyst or strategic affairs commentator in his infinite wisdom has made this statement of Stryker being an ICV while WhAP is only an APC. The person must have been suffering from retrograde amnesia OR he doesn’t have a clue OR he is deliberately being obtuse.

DRDO TATA WhAP ,also known as Kestrel is a modular versatile platform which can be configured to meet diverse mission requirements. WhAP can be easily reconfigured into an Infantry Combat vehicle by installing the Elbit UT30mk2 turret. With a 30 mm Mk44 Bushmaster along with a coaxial 7.62 mm MG(Negev NG7) plus 4th or 5th gen F&F ATGM like Spike LR/ LR II along with its own EO suite- panoramic standalone TI , this turret will make Kestrel a world beater in it segment and will give GD Stryker a run for its money. Elbit already has JV and MoU with several Indian OEM and BEL and the turret can be manufactured here in India initially from SKD,CKD and then from raw material stage. We can swap the Bushmaster for the old dependable Russian Gryazev Shipunov .

OR we can install the venerable time tested BMP-2 turret with its 30 mm 2A42 cannon and 7.62 mm coaxial PKT on WhAP. It’s already under production at AVNL Medak ie erstwhile OFB Medak. Dirt cheap, robust rugged and dependable like all things Russian.

With home mad solutions available at both ends of the cost and quality spectrum, why is there a sudden irresistible itch to buy 530 Strykers ( off the shelf import of a few nos followed by licensed manufacture here )?

Are we paying hafta for the American generosity and largesse in the form of Congress’s approval for 80 percent Tech transfer in the HAL GE F414INS6 engine deal ? Or is this because Washington has been benevolent and kind and allowed us third world lowly Indians to buy cheap crude from Moscow ??

Anyways, let’s see how things pan out in the coming months.

PS- Stryker isn’t amphibious which is one of the GSQR of Indian Army. Kestrel is amphibious upto a certain GVW. We need an amphibious platform to navigate the riverine terrain of Pakistani Punjab and the marshlands of Gulf of Kutch. Do remember that some of these are meant for recce mech inf units. So the chances of this Stryker deal going through is slim unless this is Hafta payment to Washington DC .

We could have bought another 6 Poseidons and 15 more Chinooks as hafta. Stryker is a bad deal through and through.



https://t.co/5ZbVsidoEe
Bmp-2 turret , ficv turrent , namica based ifv turret , a 105mm turret all should be compatible with kestrel/mahindra whap
Talking bout hafta nothing can be done in that case if order value is near to 500 units making it with a more powerful engine or making it amphibious shouldnt be a challenge for uncle sam too
 
AGNI 5 TEL has 56 trailer +10 volvo "66 wheels" , AGNI 5 trailer can retract its wheels (observe that orage arrow) "2 axles are in retracted position" this might allow volvo to maintain max speed of 30 Kmph View attachment 838

I wonder how come you did count 56 wheel in that grainy trailer. Last time I checked, it was 28 wheels trailer by TATA advance system.
 

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