DRDO, PSU and Private Defence Sector News

[south block]

Possible purposes?

Is is probbable that there more of these mega underground structures across India than anyone has thought to report?

these are probably ISPRL sites.

You are mistaking strategic oil reserve 2ith underground construction qnd tunnels. Strategic oil reserves are underground reservoir, not tunnels. There are underground rock system at relatively low depth which have lot of empty space between. This rock system is then finetuned by special process to block any cracks & crevices by using cement/plaster and then pumped with oil.

Thereis no underground tunneling with lights in strategic oil reserves

https://www.google.co.in/url?sa=t&s...FjAHegQIAxAB&usg=AOvVaw3wBYIwd0k3MuaYUNu3AMTZ

 

[Chinmoy]

View attachment 24877

This one is interesting and a first in India I presume.

Passive radar from BEL thales JV.

Would love to know it's performance against stealth aircrafts.

Interesting concept to use FM signal for RADAR purpose..

 

[porky_kicker]

Interesting concept to use FM signal for RADAR purpose..

Yes , me thinks this is to flush out hostile aircrafts flying under self imposed EMCON. ie in the absence of any emitted signals for triangulation , it will beam FM signals and then the passive recievers as usual will catch any reflections bouncing off to triangulate the location and presence of a hostile.

Also it should be able to operate without utilizing the FM transmitter just like any other passive radars if the hostile is giving off detectable signals.

Also just speculating..... what's the frequencies the FM transmitter will be using , if it is close to the civilian spectrum but beamed upwards then hostiles will have a tough time to discriminate between the two and hence won't be alerted by onboard EW systems.

 

[porky_kicker]

Daksha and quad copter...................

 

[ezsasa]

View attachment 24946

View attachment 24947

View attachment 24948

View attachment 24949

Daksha and quad copter...................

Finally some neat looking plastic moulded covers from PSU stable...

It has always seemed like PSU are averse to neat looking products.

 

[ezsasa]

Implementation of Network for spectrum of defence services.....

 

[porky_kicker]

Tactical instant communication system

Tethered uav with eo / radar / sigint payload

 

[porky_kicker]

Another rcws from Mahindra..............

 

[porky_kicker]

Heavy duty EOD ugv............

 

[ezsasa]

In the morning I read some article which was basically saying MoD issued list of items worth 35000 crores that Indian defence manufacturers can manufacture for export. MoD wanted confirmation from the manufacturers.

The tweet got lost in my twitter timeline

Has anybody read this article?

 

[AMCA]

Handing over of DRDO designed & developed Akash missile 1000th series production propulsion system hardware to BDL by L&T Defence at Coimbatore in presence of Dr S. Christopher Chairman DRDO. (DRDO)


Akash NG can be seen in the poster behind.........

 

[patriots]

Smt @nsitharaman congratulates Team Brahmos &
@DRDO_India for successful flight test carried out at 1040 hrs on 21 May 2018 from ITR, Balasore to validate BRAHMOS missile life extension technologies developed for the first time in India. 1/2

 

[porky_kicker]

Damn it seems Akash has been equipped with IR/IIR seeker.

Logic tells that it should be a IIR based seeker since nag uses IIR seeker and it would be easier to build on it rather than go backwards.

So now Akash missiles are guided by

1. CLOS command line of sight guidance
2. RF seeker
3. IIR seeker

As I once explained CLOS guidence can be combined with RF seeker guidance , and hence CLOS guidence can also be combined with IIR based guidance ensuring high kill probability even under intense countermeasures.

These 2 types of guidence ( RF/IIR ) either standalone or in combination with CLOS guidance will definitely provide a clear edge over the hostile threats.

IIR guidance will especially be useful to shoot down low flying drones, PGMs and cruise missiles.

And will also provide lock on before launch ie almost instantaneous capability to target pop up targets like helicopters in minimal reaction time compared to the CLOS and RF seeker guided akash missiles.

So basically in order to defeat Akash sam hostile aircrafts will have to defeat
1.the land based guidance radars and the active seekers on the missiles or
2.the land based radars and the IIR seekers on the missiles or
3.the missiles guided by RF seekers or
4.the missiles guided by IIR seekers.


Good luck to them. :biggrin2:

Source

https://www.drdo.gov.in/drdo///pub/newsletter/2018/feb_18.pdf

"Akash Weapon System, already in
service with the IAF, was refurbished
with the IR seeker to the satisfaction
of the user."

Credit for finding it out goes to Karan m @br.

Another source

https://www.theweek.in/theweek/current/2018/05/18/interview-s-christopher-chairman-drdo.html

And also highlights the need to develop our own systems because then we can do what we want with it. Sky is the limit.

 

[Enquirer]

Damn it seems Akash has been equipped with IR/IIR seeker.

Logic tells that it should be a IIR based seeker since nag uses IIR seeker and it would be easier to build on it rather than go backwards.

So now Akash missiles are guided by

1. CLOS command line of sight guidance
2. RF seeker
3. IIR seeker

As I once explained CLOS guidence can be combined with RF seeker guidance , and hence CLOS guidence can also be combined with IIR based guidance ensuring high kill probability even under intense countermeasures.

These 2 types of guidence ( RF/IIR ) either standalone or in combination with CLOS guidance will definitely provide a clear edge over the hostile threats.

IIR guidance will especially be useful to shoot down low flying drones, PGMs and cruise missiles.

And will also provide lock on before launch ie almost instantaneous capability to target pop up targets like helicopters in minimal reaction time compared to the CLOS and RF seeker guided akash missiles.

So basically in order to defeat Akash sam hostile aircrafts will have to defeat
1.the land based guidance radars and the active seekers on the missiles or
2.the land based radars and the IIR seekers on the missiles or
3.the missiles guided by RF seekers or
4.the missiles guided by IIR seekers.


Good luck to them. :biggrin2:

Source

https://www.drdo.gov.in/drdo///pub/newsletter/2018/feb_18.pdf

"Akash Weapon System, already in
service with the IAF, was refurbished
with the IR seeker to the satisfaction
of the user."

Credit for finding it out goes to Karan m @br.

Another source

https://www.theweek.in/theweek/current/2018/05/18/interview-s-christopher-chairman-drdo.html

And also highlights the need to develop our own systems because then we can do what we want with it. Sky is the limit.

Where does it say that Akash has both RF& IR seekers?
All earlier reports spoke only of RF seekers. It's definitely interesting to note the mention of IR seeker by DRDO chief (I had earlier read about the IR seeker in the DRDO newsletter, but thought it might have been a typo - which is not uncommon with DRDO/MoD writeups).
It's likely that Akash has only one seeker - IR (earlier newsreports are incorrect!). If there were two seekers, then the newsletter would have mentioned it (with great pride)

 

[Kshithij]

Damn it seems Akash has been equipped with IR/IIR seeker.

Logic tells that it should be a IIR based seeker since nag uses IIR seeker and it would be easier to build on it rather than go backwards.

So now Akash missiles are guided by

1. CLOS command line of sight guidance
2. RF seeker
3. IIR seeker

As I once explained CLOS guidence can be combined with RF seeker guidance , and hence CLOS guidence can also be combined with IIR based guidance ensuring high kill probability even under intense countermeasures.

These 2 types of guidence ( RF/IIR ) either standalone or in combination with CLOS guidance will definitely provide a clear edge over the hostile threats.

IIR guidance will especially be useful to shoot down low flying drones, PGMs and cruise missiles.

And will also provide lock on before launch ie almost instantaneous capability to target pop up targets like helicopters in minimal reaction time compared to the CLOS and RF seeker guided akash missiles.

So basically in order to defeat Akash sam hostile aircrafts will have to defeat
1.the land based guidance radars and the active seekers on the missiles or
2.the land based radars and the IIR seekers on the missiles or
3.the missiles guided by RF seekers or
4.the missiles guided by IIR seekers.


Good luck to them. :biggrin2:

Source

https://www.drdo.gov.in/drdo///pub/newsletter/2018/feb_18.pdf

"Akash Weapon System, already in
service with the IAF, was refurbished
with the IR seeker to the satisfaction
of the user."

Credit for finding it out goes to Karan m @br.

Another source

https://www.theweek.in/theweek/current/2018/05/18/interview-s-christopher-chairman-drdo.html

And also highlights the need to develop our own systems because then we can do what we want with it. Sky is the limit.

It only says that the older Akash missiles were retrofitted with IR seekers. The newer Akash Mk2 have RF seekers. The older ones were not designed to host a radar and hence the retrofit of radar might have been difficult. IR seeker may have been easier to retrofit and hence fitted.
The key words are:

"Akash Weapon System, already in
service with the IAF, was refurbished
with the IR seeker to the satisfaction
of the user."

The word refurbished means retrofitting in this context.

 

[Enquirer]

It only says that the older Akash missiles were retrofitted with IR seekers. The newer Akash Mk2 have RF seekers. The older ones were not designed to host a radar and hence the retrofit of radar might have been difficult. IR seeker may have been easier to retrofit and hence fitted.
The key words are:

"Akash Weapon System, already in
service with the IAF, was refurbished
with the IR seeker to the satisfaction
of the user."

The word refurbished means retrofitting in this context.

All news reports regarding Akash test with a "seeker on board" mentioned it as RF seeker (the same seeker developed for Akash NG). Obviously all those reports are wrong!
It's very likely that Akash NG will also be equipped with an IR seeker.

IR seeker being easier to fit than an RF seeker is just your assumption/imagination!!!

 

[Steven Rogers]

Look at these projects which got completed recently(reported by committee in the Parliament) . MCIWS, DC MAWS, EW Suite for fighter aircraft, Imaging InfraRed for supersonic and hypersonic missile.

Sent from my Aqua Ace II using Tapatalk

 

[porky_kicker]

Look at these projects which got completed recently(reported by committee in the Parliament) . MCIWS, DC MAWS, EW Suite for fighter aircraft, Imaging InfraRed for supersonic and hypersonic missile.

Sent from my Aqua Ace II using Tapatalk

This pretty much confirms the issue regarding iir seeker on Akash

 

[Kshithij]

This pretty much confirms the issue regarding iir seeker on Akash

It could be for BMD missile seeker. It could have been incorporated into older Akash during reurbishment

 

[Kshithij]

All news reports regarding Akash test with a "seeker on board" mentioned it as RF seeker (the same seeker developed for Akash NG). Obviously all those reports are wrong!
It's very likely that Akash NG will also be equipped with an IR seeker.

IR seeker being easier to fit than an RF seeker is just your assumption/imagination!!!

how do you know that all reports are wrong? Also, the information that India used RF seekers was given by Ministry of defence to PIB here: http://pib.nic.in/newsite/PrintRelease.aspx?relid=174118

You are just pulling things out of your arse and saying that all this is false? Are you insane?