DRDO, PSU and Private Defence Sector News

[porky_kicker]

This was the predecessor of IA MRSAM

This is the successor of IA MRSAM

 

[porky_kicker]

And I don't understand the reason behind designing X band and Ku band simultaneously.

X band supports greater power and offers better resilience against atmospheric attenuation and hence its practical range is higher compared to Ku band which has much reduced range due to attenuation constraints . Also X band results in lower noise.

For a given form factor , Ku band is the traditional choice over X band , but new technologies have allowed to build compact X band seekers with more or less ( though with shortfalls ) equivalence to Ku band characteristics along with the inherent advantages of X band.

Interestingly lastest trend is to couple X band with Ku band.
Eg meteor seeker supposedly incorporates passive X band along with active Ku band.

 

[porky_kicker]

Bdw after mrsam army .....lrsam is going to be tested from itr Chandipur in a month or two
But the lunching platform is unknown...
Bdw @porky_kicker do you mrsam army gsqr
What I know that mrsam army will be more mobile.....and can shoot down small drones too
Some heavy modifications are done it seems.....
It took atleast 6 months to test mrsam (army).....
As mrsam (iaf) is in production

No I don't have the gsqr.

IA MRSAM is geared towards higher mobility , higher on field maintenability , lower encamp and decamp time , additional features for comms segment for networking among the different elements and hierarchy while on the move and while under influence of hostile ECM, additional mobile support systems in aid of on field operations etc.

 

[SUPERPOWER]

This was the predecessor of IA MRSAM

View attachment 71331

This is the successor of IA MRSAM

View attachment 71332

Any idea which truck is this??

 

[patriots]

Nag missile

On can confirm that 15 dhruvastra are in making

 

[patriots]

 

[WarriorIndian]

Any idea which truck is this??

Its Ashok Leyland, maybe Super Stallion 6X6 or 6X4

 

[Arihant Roy]

Agni-VI will also be MIRV and MaRV capable.

You are new to the forum aren't you.

We have had MIRV since the better part of the decade. Agni- 3 had a three RV configuration along with penetration aids and decoys. Agni 5 had taken things a step further .

MaRV had existed since around early 2000s. Agni 2 RV vehicle.

India has already firmly established itself in the Hypersonics and MIRV and MaRV for the last several years . We have already secured a place at the high table .

 

[porky_kicker]

So some updates on namica luncher....
It will have 6 missile lunchers
The 7.62 rws will have a pkt machine gun
Namica will have some weight optimization too
The namica luncher is being built by l&t(ofb Medak making bm2 .... modified by l&t later transfer it to drdl)
View attachment 71244View attachment 71245View attachment 71246View attachment 71247

Namica uses a ( slightly modified ) L&T RCWS

 

[Karthi]

Diagram of Hypersonic Wind Tunnel.

DRDO ASW rocket

DRDO Extended Range ASW

 

[NAMICA]

View attachment 36020

AFAIK should make into Astra mk2 if things go as planned ( work on conformal antennas ) , also cooperative engagement capability is being envisaged for Astra mk2.

LRSAM/MRSAM tech being recycled for Astra mk2

Isn't astra is having two way data link and CEC.

 

[porky_kicker]

Isn't astra is having two way data link and CEC.

The post of mine you quoted already has the pic of the 2 way data link unit of the missile

Reposting the 2 way data link on the aircraft end ( launch pylon )

CEC for Astra mk1 I don't know.

 

[NAMICA]

The post of mine you quoted already has the pic of the missile onboard 2 way data link ,

View attachment 71373

Reposting the 2 way data link on the aircraft end ( weapon pylon )

View attachment 71372

CEC for Astra mk1 I don't know.

Isn't two way data link and SDR gives CEC? Can u explain what is third party engagement.

 

[porky_kicker]

Isn't two way data link and SDR gives CEC? Can u explain what is third party engagement.

Theoretically it should

One simple way to understand is to think one aircraft ( sensors active ) searches detects tracks and computes the firing solution and sends it to another aircraft ( sensors passive/off ) who utilities the transferred information after necessary adjustments to it vis a vis own position , velocity etc and launches the missile. The missile flies off towards the target and if mid course guidance is required it is provided by the 1st aircraft which was already active ( sensors on ) , while the 2nd aircraft which launched the missile need not intervene , it continues to remain passive ( sensors off ).

There can be other combinations also , eg AEW&CS doing the detection tracking and calculation of preliminary FCS and transferring them to other aircrafts who uses it to launch missiles without activating their sensors ( radars etc ) . The AEW&CS will provide mid course guidance if required to the missiles in flight. All the while the launch aircrafts remain with their sensors on passive/off mode to evade detection / maintain tactical advantage etc .

 

[NAMICA]

Theoretically it should

One simple way to understand is to think one aircraft ( sensors active ) searches detects tracks and computes the firing solution and sends it to another aircraft ( sensors passive/off ) who utilities the transferred information after necessary adjustments to it vis a vis own position , velocity etc and launches the missile. The missile flies off towards the target and if mid course guidance is required it is provided by the 1st aircraft which was already active ( sensors on ) , while the 2nd aircraft which launched the missile need not intervene , it continues to remain passive ( sensors off ).

There can be other combinations also , eg AEW&CS doing the detection tracking and calculation of preliminary FCS and transferring them to other aircrafts who uses it to launch missiles without activating their sensors ( radars etc ) . The AEW&CS will provide mid course guidance if required to the missiles in flight. All the while the launch aircrafts remain with their sensors on passive/off mode to evade detection / maintain tactical advantage etc .

What about AWACS directly controlling the missile.

 

[Rubian45]

You are new to the forum aren't you.

We have had MIRV since the better part of the decade. Agni- 3 had a three RV configuration along with penetration aids and decoys. Agni 5 had taken things a step further .

MaRV had existed since around early 2000s. Agni 2 RV vehicle.

India has already firmly established itself in the Hypersonics and MIRV and MaRV for the last several years . We have already secured a place at the high table .

I respectfully disagree with your statement. My statement clearly said Agni VI will "ALSO" have MIRV and MaRV capability, I never said Agni Vi is the ONLY one with MIRV and MaRV capability. But somehow you seem to have Misconstrued my statement as an attack on India's capability. I never implied that India lacks capability to develop MIRV or Hypersoninc missile. A simple question was asked " Are we going to have submarine launched mirv missile only ? ", and i replied with a simple and accurate answer "Agni-VI will also be MIRV and MaRV capable."

There is absolutely no need to get so defensive.

 

[Arihant Roy]

A high resolution pic of yesterday's maiden test of the army variant .

The gas flow control vanes for thrust vectoring are clearly visible in the pic.

The billion dollar question arises just after the launch. According to some folks , the TVC vanes are jettisoned just after the missile has been vectored to its required heading .

Some other folks say the TVC arrangement that is the vanes remain with the missile throughout its envelope .

I am still looking up on this .

 

[Arihant Roy]

I respectfully disagree with your statement. My statement clearly said Agni VI will "ALSO" have MIRV and MaRV capability, I never said Agni Vi is the ONLY one with MIRV and MaRV capability. But somehow you seem to have Misconstrued my statement as an attack on India's capability. I never implied that India lacks capability to develop MIRV or Hypersoninc missile. A simple question was asked " Are we going to have submarine launched mirv missile only ? ", and i replied with a simple and accurate answer "Agni-VI will also be MIRV and MaRV capable."

There is absolutely no need to get so defensive.

Pls forgive me for misconstruing your statement.

I can say with authority that there is a MIRVed K-4 missile. It's payload bus can accomodate 3 RV besides the usual stuff . And it's in operational service .

 

[WARREN SS]

Why Do We Need 'Israeli's UHF & VHF radars ??

Swordfish is an advanced L-band active phased array radar developed by the Defence Research and Development Organization (DRDO). Unlike the most radars used by Indian forces, the Swordfish is capable of successfully detect, track and stop inbound ballistic missile threats. The radar was specifically built with Israeli assistance to meet the demands of a fledgling Indian Ballistic Missle Defence (BMD) system. The main reason for the high altitude requirement was to ensure that the inbound threat could be eliminated in outer space by exoatmospheric interceptors.

EL/M-2080 Green Pine radar (Image: IAI Elta)

Swordfish radar at a missile testing facility

Swordfish has proven itself in over 10 successful missile interceptions including two* exo-atmospheric hit-to-kill (H2K) interception. The existing variant of radar has a range of 600-800 km and can detect targets as small as cricket ball at a long distance. The maximum target speeds up to which it can be tracked by Swordfish is over Mach 12.
In the fully automated, multi-layer mode, a single battery of BMD system could engage 6 high-speed ballistic targets with up to 98% kill probability (when 2 exo-interceptors are launched simultaneously and 2 endo-atmospheric interceptors are in standby mode). All Pakistani ballistic are well within the engagement envelope of the BMD system. But something has changed- Ababeel MIRV-capable missile.
Pakistan first announced its test of the MIRVed missile on 24th January 2017. However, during the test firing of the missile, it was not carrying any MIRVs and it would be years before the missile is operational. Ababeel has a range of 2000 km and it can carry at least 3 MIRVs. While the missile is still well within the engagement envelope of Indian BMD, smaller warheads are likely to be troublesome.
Why?

RCS profile of a cone-shaped reentry vehicle

U.S. Air Force maintenance personnel training to remove and install the Avco MK-21 re-entry vehicles from the bus of a Peacekeeper missile. Image: Wikimedia Commons

MIRV warheads are very small, and the shape itself makes RVs inherently low observable from all direction. Frontal RCS can be smaller than that of a golf ball. Low RCS can drastically reduce the probability of detection and thereby delay the launch sequence - the result is reduced kill probability.

Super-Swordfish cometh
Super-Swordfish radar was first unveiled in 2012, it was stated to be twice as powerful as older swordfish radar. The new radar has a range of over 1500km, facilitating early detection of inbound threats. if reports are to be believed, Super-Swordfish is already operational.
The interesting fact is that the development of Super-Swordfish probably started after Pakistan started working on a MIRVed missile. According to National Interest, 'The BBC reported back in 2010 that Pakistani missile designers were receiving substantial assistance from China in developing MIRV technology. The Ababeel appears to have a large nose cone, which may allow it to carry multiple warheads even if they are slightly larger than normal MIRVed warheads.'

Even though Pakistan tested Ababeel in 2017, India had already begun consolidating missile defence. Older RF guidance based Prithvi Interceptor missile has been replaced by much improved Prithvi Defence Vehicle (similar to THAAD). The new interceptors can intercept RVs at altitudes above 150 km. Since PDV is guided by an IIR seeker it can easily detect RV at a long distance thanks to a high-temperature differential between RV and cold space. On paper, PDV is superior to S-400's 40N6 missile, owing to its superior guidance and hit-to-kill target engagement mechanism.

Can Ababeel be intercepted?
The reentry speed of Ababeel's RVs is well within the interception envelope of PDV and AAD. Any High-Value Asset (HVA) is likely to be protected by multiple BMD missile batteries. Given the weak economic state of Pakistan, there won't be overwhelming numbers of this type of expansive missiles and Indian BMD will be continuously updated to counter new threats.

AD-1/AD-2 interceptors for a midcourse interception

A possible new addition to BMD early warning system

Artist's impression of Geo-Imaging Satellite (GISAT-1/2)

“A single early-warning satellite, giving you constant, complete coverage of the country, is unique,” according to Dr V.Jayaraman, former Director at ISRO’s Hyderabad-based National Remote Sensing Centre.

*In the first exoatmospheric flight PDV didn't have any target.

 

[Akula]

Why Do We Need 'Israeli's UHF & VHF radars ??

Swordfish is an advanced L-band active phased array radar developed by the Defence Research and Development Organization (DRDO). Unlike the most radars used by Indian forces, the Swordfish is capable of successfully detect, track and stop inbound ballistic missile threats. The radar was specifically built with Israeli assistance to meet the demands of a fledgling Indian Ballistic Missle Defence (BMD) system. The main reason for the high altitude requirement was to ensure that the inbound threat could be eliminated in outer space by exoatmospheric interceptors.

View attachment 71402

EL/M-2080 Green Pine radar (Image: IAI Elta)

View attachment 71403
Swordfish radar at a missile testing facility

Swordfish has proven itself in over 10 successful missile interceptions including two* exo-atmospheric hit-to-kill (H2K) interception. The existing variant of radar has a range of 600-800 km and can detect targets as small as cricket ball at a long distance. The maximum target speeds up to which it can be tracked by Swordfish is over Mach 12.
In the fully automated, multi-layer mode, a single battery of BMD system could engage 6 high-speed ballistic targets with up to 98% kill probability (when 2 exo-interceptors are launched simultaneously and 2 endo-atmospheric interceptors are in standby mode). All Pakistani ballistic are well within the engagement envelope of the BMD system. But something has changed- Ababeel MIRV-capable missile.
Pakistan first announced its test of the MIRVed missile on 24th January 2017. However, during the test firing of the missile, it was not carrying any MIRVs and it would be years before the missile is operational. Ababeel has a range of 2000 km and it can carry at least 3 MIRVs. While the missile is still well within the engagement envelope of Indian BMD, smaller warheads are likely to be troublesome.
Why?

​

RCS profile of a cone-shaped reentry vehicle

​

U.S. Air Force maintenance personnel training to remove and install the Avco MK-21 re-entry vehicles from the bus of a Peacekeeper missile. Image: Wikimedia Commons

MIRV warheads are very small, and the shape itself makes RVs inherently low observable from all direction. Frontal RCS can be smaller than that of a golf ball. Low RCS can drastically reduce the probability of detection and thereby delay the launch sequence - the result is reduced kill probability.

Super-Swordfish cometh
Super-Swordfish radar was first unveiled in 2012, it was stated to be twice as powerful as older swordfish radar. The new radar has a range of over 1500km, facilitating early detection of inbound threats. if reports are to be believed, Super-Swordfish is already operational.
The interesting fact is that the development of Super-Swordfish probably started after Pakistan started working on a MIRVed missile. According to National Interest, 'The BBC reported back in 2010 that Pakistani missile designers were receiving substantial assistance from China in developing MIRV technology. The Ababeel appears to have a large nose cone, which may allow it to carry multiple warheads even if they are slightly larger than normal MIRVed warheads.'

Even though Pakistan tested Ababeel in 2017, India had already begun consolidating missile defence. Older RF guidance based Prithvi Interceptor missile has been replaced by much improved Prithvi Defence Vehicle (similar to THAAD). The new interceptors can intercept RVs at altitudes above 150 km. Since PDV is guided by an IIR seeker it can easily detect RV at a long distance thanks to a high-temperature differential between RV and cold space. On paper, PDV is superior to S-400's 40N6 missile, owing to its superior guidance and hit-to-kill target engagement mechanism.

Can Ababeel be intercepted?
The reentry speed of Ababeel's RVs is well within the interception envelope of PDV and AAD. Any High-Value Asset (HVA) is likely to be protected by multiple BMD missile batteries. Given the weak economic state of Pakistan, there won't be overwhelming numbers of this type of expansive missiles and Indian BMD will be continuously updated to counter new threats.

​

AD-1/AD-2 interceptors for a midcourse interception

A possible new addition to BMD early warning system

​

Artist's impression of Geo-Imaging Satellite (GISAT-1/2)

“A single early-warning satellite, giving you constant, complete coverage of the country, is unique,” according to Dr V.Jayaraman, former Director at ISRO’s Hyderabad-based National Remote Sensing Centre.

*In the first exoatmospheric flight PDV didn't have any target.

GISAT-1 was scheduled to be launched on GSLV mk2 in March, but that never happened. I think pressure from uncle Sam is the reason.