DRDO, PSU and Private Defence Sector News

[Enquirer]

There was a link on Metamaterials research paper by DRDO that was given here by someone I don't remember. Can anyone please give the link if anyone has it ?

All DRDO publications are available at:
https://www.drdo.gov.in/drdo/English/index.jsp?pg=public.jsp

 

[porky_kicker]

http://updex.in/presentation/

Lots of info in the PPT and PDF files

 

[Chinmoy]

View attachment 30543

Interesting wind tunnel model under testing.

Seems to me like DRDO is developing a earth penetrator / bunker buster ordinance.

Interestingly it has grid/lattice fins

That's the 500 kg bunker buster. Reportedly made from advanced high carbon steel and packing a warhead of 100+ kgs. I think we would go for a FAB warhead with it.

 

[porky_kicker]

That's the 500 kg bunker buster. Reportedly made from advanced high carbon steel and packing a warhead of 100+ kgs. I think we would go for a FAB warhead with it.

To me the shaping of the ordinance is indicative that the earth penetrator is for primarily targetting underground structures rather than overground structures/bunker. Not sure though.

Super heavy casing at the front with the warhead at the rear with a void sensing fuze should be able to do a good job.

In future should also look to heavier versions at or exceeding 1 ton

@Chinmoy

Another question do you think it is self propelled pre impact ?

And maybe 2 stage warhead ?

I ask these because the ordinance body is too long :biggrin2:

 

[Chinmoy]

To me the shaping of the ordinance is indicative that the earth penetrator is for primarily targetting underground structures rather than overground structures/bunker. Not sure though.

Super heavy casing at the front with the warhead at the rear with a void sensing fuze should be able to do a good job.

In future should also look to heavier versions at or exceeding 1 ton

@Chinmoy

Another question do you think it is self propelled pre impact ?

And maybe 2 stage warhead ?

I ask these because the ordinance body is too long :biggrin2:

Self propelled pre impact....... As far as what I heard, No. The body of such ordinances are always longer then the conventional ones. The GBU series are more then 6 feet in length at minimum. The logical reason being to accumulate the hardened nose part. Nearly half of its length is the penetrator itself.

 

[porky_kicker]

Vijaindra k Thakur is claiming that Rudra-M3 is a air to surface anti radiation missile with range of 100-150 km , while NGARM is a air to air anti radiation missile .



Damn everything turned into kitcheri

@Chinmoy @sayareakd

 

[ash2win]

lol, Anti radiation missile is air to air :biggrin2:

 

[porky_kicker]

lol, Anti radiation missile is air to air :biggrin2:

R-27EPAA-10 Alamo-f is one such example

 

[indiatester]

lol, Anti radiation missile is air to air :biggrin2:

Why would ARM's be air to air when the biggest threat is because of SAM's and their radars?

 

[Aaj ka hero]

Why would ARM's be air to air when the biggest threat is because of SAM's and their radars?

What about AWACS and electronic warfare aircrafts like growler?

 

[indiatester]

What about AWACS and electronic warfare aircrafts like growler?

Sure, they are targets too, but they are easily acquired with radar and targeted. SAM sites on the other hand are hidden and requires us to take them out before we establish our air superiority.
https://en.wikipedia.org/wiki/Suppression_of_Enemy_Air_Defenses
Once we have that, AWACS won't fly

 

[AnantS]

Sure, they are targets too, but they are easily acquired with radar and targeted.

True, but I guess, this more for case of passive detection , lock and fire? That is you silently listen for emissions from AWACS, launch arm against it, without turning your own radar emissions on?

 

[indiatester]

True, but I guess, this more for case of passive detection , lock and fire? That is you silently listen for emissions from AWACS, launch arm against it, without turning your own radar emissions on?

Fair case. But, how many AWACS are there for you to develop a missile like that? When you take the case of AESA radars on aircraft, you can't depend on then being on and or immobile. So a passive radiation based seeker may not have enough return on investment.
As of today, we have more ground RADAR sites than AWACS which means air to surface ARM's make more sense.

All this based on my opinions. Would love to hear from an authority on this topic.

 

[kr9]

True, but I guess, this more for case of passive detection , lock and fire? That is you silently listen for emissions from AWACS, launch arm against it, without turning your own radar emissions on?

With 150 km firing range, the fighter(even with passive mode) will not be hidden from an AWACS that is actively scanning. Unless NGARM has greater range & is an AWACS killer, the reporter is probably missing something. We will have to wait for DRDO's statement.

 

[Aaj ka hero]

Fair case. But, how many AWACS are there for you to develop a missile like that? When you take the case of AESA radars on aircraft, you can't depend on then being on and or immobile. So a passive radiation based seeker may not have enough return on investment.
As of today, we have more ground RADAR sites than AWACS which means air to surface ARM's make more sense.

All this based on my opinions. Would love to hear from an authority on this topic.

I think we will have this missile in very limited numbers being limited does not mean we must not test it.
Someone said chinese and pakis have large no. of AWACS aircraft.
One question can't this missile be used against stealth aircraft?

 

[proud_indian]

offtopic

Can anyone tell what happened to "Defence India Startup Challenge"?
they were supposed to declare the winner of that competition

 

[Enquirer]

I think we will have this missile in very limited numbers being limited does not mean we must not test it.
Someone said chinese and pakis have large no. of AWACS aircraft.
One question can't this missile be used against stealth aircraft?

Pakis had around 3-4 of the Swedish Erieye AEW&C; recently China supplied them with 3-4 of their AWACS.
But I am not totally sure about the anti-radiation missiles' effectiveness against AESA radars. It is intuitive to know that it's very easy to home into a source of high-strength SINGLE frequency radar signal; but when the source emits SEVERAL frequency signals, each of small strength (as does AESA radars) then I would presume it is much more difficult. Net-net all anti-radiation missiles are probably not made equal!
As regards the stealth aircraft, the modern ones all use AESA radars (as such difficult to home in); moreover in full stealth mode even the AESA radars are switched off (only passive IRST is turned on).

 

[AnantS]

Fair case. But, how many AWACS are there for you to develop a missile like that? When you take the case of AESA radars on aircraft, you can't depend on then being on and or immobile. So a passive radiation based seeker may not have enough return on investment.
As of today, we have more ground RADAR sites than AWACS which means air to surface ARM's make more sense.

All this based on my opinions. Would love to hear from an authority on this topic.

There are plenty of AWACS (if you see Pak-China. Why I have a feeling this missile is primarily for TAR? Well apart from AWACS , tethered Aerostats are also valid targets? Not sure much about latter , as the tethered aerostats usually dont fly high.


PS: As I was searching for Chinese high altitude aerostats. I came to an interesting link https://tiananmenstremendousachieve...e-aerostat-will-be-better-than-spy-satellite/. Now combine this link with reports heard from Indian soldiers in Arunachal and Ladhak regions of having seen UFO

 

[AnantS]

With 150 km firing range, the fighter(even with passive mode) will not be hidden from an AWACS that is actively scanning. Unless NGARM has greater range & is an AWACS killer, the reporter is probably missing something. We will have to wait for DRDO's statement.

true, but see it from shoot and scoot prespective ie launch and disengage. Also how will it detect & track "arm" missile launch-without emissions? Agree with range part. I guess this is India's ks172 novator

 

[Enquirer]

true, but see it from shoot and scoot prespective ie launch and disengage. Also how will it detect & track "arm" missile launch-without emissions? Agree with range part. I guess this is India's ks172 novator

....but Novator is not anti-radiation missile...
It’s just a very long range, active RF seeker based AAM