DRDO, PSU and Private Defence Sector News

[Karthi]

DRDO UNIVERSAL GREEN LOAD BANK

 

[Karthi]

DRDO trawl system for clearing the minefield area

 

[Karthi]

Composite materials based Canisters for HP/LP liquids (hydrogen, oxygen, nitrogen and few inert gases).

 

[Karthi]

A Multi-segment Morphing System for a Micro Air Vehicle using

Four segment morphing MAV with dual flex sensors, SMA actuators, and electronics.
Shape Memory Alloy Actuators.


One of of the novelties of this system is development of an adaptive control allocation algorithm that provides fast, simultaneous and independent operation of four morphing segments using shape memory alloy (SMA) actuators. The SMA operation is time-staggered in microsecond resolution to ensure that only one SMA draws power from the MAV battery at a time. The other novelties are the in-flight measurement of morphing angle using dual flex-sensors and morphing of leading edges such that the ‘morphing-line’ is diagonal (45º) to the MAV’s lateral axis. The system was implemented on an open source autopilot controller and operated using the MAV battery. It was ground-tested under propeller ON conditions and a droop rate of 35º/s and ability to track a 1 Hz sinusoidal variation of droop angle were realised.

 

[Chinmoy]

You Forget Terminal velocity, Accelerating to 70 M is little bit difficult more over the accuracy of These systems are low in atmosphere even wind can affect these projectiles A change in 1mm may lead to a change of many meters or Km

Correct..... Terminal Velocity would depend on multiple factors like Mass, Shape, Size, Drag and Gas/Air density.

So when designing such a projectile, the impetus is on to minimize the drag. But even then the Air density would play a major role. Now this can't be predicted before hand as Air density on a hot place like desert would be much lower near the surface then a colder place and because of it drag coefficient would get affected and ultimately the velocity would be impacted.

So deploying a such a system does come with its own challenge and the proposal was put forward to control the fall and bring the terminal velocity near to Mach 10 so that the impact position could be managed along with the effect. But if you allow the projectile to fall freely under gravity, the effect would be devastating.

 

[Karthi]

Schematic of fabrication of nanoneedles using LDW method with:
(a) 20X objective with confinement by atmospheric pressure, and
(b) confinement using glass coverslip.


Novel methods for production of nanomaterials are urgently needed for various applications, especially in
defence.

 

[Karthi]

Thermal interference of ASTRA missile plume with aircraft.

 

[Karthi]

Mach number distribution of plume profile (a) Altitude 4.5 km, (b) Altitude 15 km.

 

[Karthi]

Integrated plume at different time instants on MKI (M = 0.6, a = 5°, h = 8km).



Separation dynamics study of an air-launched missile is a paramount task for ensuring the safety of launch aircraft. The study should certify that there is absolute absence of any physical interference of missile with the
aircraft at any circumstance. It is also important to ensure that the interference of rocket motor plume of hot-launched
missile does not have any significant effect on the structure, on board electronic components and sensitive parts of the aircraft. The plume ingestion into the aircraft intake is a critical problem which endangers the safety of the
aircraft. Therefore, the prediction of plume path of hot-launched missile is a significant part of separation dynamics study.

 

[porky_kicker]

Variant of Rustom ?
Or
A new one ?
Or
Just a concept ?

Only time will tell

 

[porky_kicker]

Not to be confused with drdo HBJ pod.

This one is a new compact electronic attack pod under development.

If developed successfully might end up with LCA etc

 

[Karthi]

Landing gear Trailing Arm from Bharath Forge

 

[Karthi]

Landing gear Upper Torque Link from Bharath Forge

 

[Karthi]

Ship image captured using MWIR and LWIR at 8 Km distance.

 

[Karthi]

Course Correction Fuze for Artillery

Course Correction Fuze (CCF) for reduction of dispersion of unguided 155 mm in- service Artillery Shells. The CCF installed projectile is guided by signals of satellite navigation systems “GPS/IRNSS/ GLONASS”.

The project involves the Des & Dev of:

1. CCF, which should fit into standard fuze well of 155 mm in service ERFB Arty Shells.
2. Input Setting Device (ISD) for feeding data into the CCF prior to firing.

 

[Karthi]

Tata WHAP Independent suspension with Hydro pneumatic Strut.

 

[Karthi]

Hydraulically Operated Ramp door & Day night crew assistance camera.

 

[Karthi]

Amphibious Drive Mode.

 

[Karthi]

Tata Mine Protected Vehicles .

10 Gun firing ports

V Shaped Hull for blast protection

 

[Ajax01]

Course Correction Fuze for Artillery

Course Correction Fuze (CCF) for reduction of dispersion of unguided 155 mm in- service Artillery Shells. The CCF installed projectile is guided by signals of satellite navigation systems “GPS/IRNSS/ GLONASS”.

View attachment 44575 The project involves the Des & Dev of:

1. 
   
   
   • CCF, which should fit into standard fuze well of 155 mm in service ERFB Arty Shells.
   • Input Setting Device (ISD) for feeding data into the CCF prior to firing.

We are developing CCF? That's some good news