Project Kusha / Programme LRSAM / PGLRSAM

Any news on the IAC specific LR-SAM config? I suspect it will feature a drdo booster for a longer range of upto 150km.
What else to config other than guidance algo and range reach? M1 already got the booster config due to such high range coverage. All 3 have general kv+booster config anyway. Most likely the hypersonic config from the AD missiles is used here somewhat, the slightly tapered motor casing of the 3rd. Won't be much else noticeable change hopefully.
canister config is similar.

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What else to config other than guidance algo and range reach? M1 already got the booster config due to such high range coverage. All 3 have general kv+booster config anyway. Most likely the hypersonic config from the AD missiles is used here somewhat, the slightly tapered motor casing of the 3rd. Won't be much else noticeable change hopefully.
canister config is similar.
For LRSAM (IAC), VLS compatibility is an additional factor, as a two-stage weapon. Look at the iterations VLSRSAM-VLS has had to go through for weight reduction.
 
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Unlikely, given MRSAM is now installed in it, and given the jets are yet to come perhaps will be ready some time away from now. The IAC specific version probably has the extra TBM defence role in mind. So many things to consider.
 
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Wrong it can shoot down fight jet & has much higher kill probability........ S-400 was a cost saving measure for mass scale production.

Because it's faster reach its target quicker than any other interceptor out there.....has higher kill probability against both BM & maneuvering targets. When you are engaging target at very long ranges, Speed matters.

You are wrong. 9M82/3 was never meant to shoot down aircrafts.

You need to read up about the genesis of the SA-23. How the S-300 family branched into different Sams to meet mutually exclusive requirements of the users.

There are many good threads on this on Twitter. I have to find them.

And if S-400 is a mass produced version , why doesn’t Russian ground forces use them ?

Why doesn’t VKS use SA-23?

Both the SA-21 and SA-23 have been mass produced. SA-23 has been exported to Egypt .
 
India's air defense like this in descending order of Range:

Veda Satellite killer
S500
AD2
AD1
PDV
PAD
AAD
S400
Project kusha (150,250, 350 KM Range Missiles)
EX SAM
LRSAM
MRSAM
Akash NG
Akash Prime
Akash
QRSAM
VLSRSAM
VSHORAD
30 KW Laser (As higher versions comes, this will move upward)
IGLA
Bhargavastra
 
It is impossible to have all these things true simultaneously. It must be heavier, bulkier, and more expensive to achieve true BM capability. It is just overkill to use as a regular LRSAM (read S400) replacement.

We need optimal cost to kill interceptor. A single missile is never the answer.

The long range 40N6E of S400 is 1893kg, while 9M82/9M83 missiles you compared are an absurd 3500kg to 4700kg !.

Childish comparison.
Weight for most part is concentrated in that heavy booster which give it Initial hypersonic speed, it's a 2 stage missile..... The weight of the main interceptor itself is less between 1200 & 1300 kg compared to 40N6E 1,893 Kg.

Speed of course matters, but what matters more in a hit to kill role (or even in fragment disperse role) is the relative velocity with respect to the target. Usually against BM or high speed threat vector, this would be so much that precision would be lost altogether and such systems are built for very high degree of precision. We have to consider that once you launch an interceptor, the on board computer algorithm programs will take over after initial phase of guidance & bearing provided by ground control system. No matter how accurate your programs are, in ambient conditions there can be very small degree of error enough to create miss distance that will fail the mission. Hence the control system (RCS, fins, DACS etc as per exo/endo engagement) and accuracy is prioritised over speed.

BMD interceptors are of high speed by nature, but speed is never the only parameter given pinpoint accuracy in vast airspace/outer space is needed.
High Speed is necessary for closing the distance fast between interceptor & target at longer ranges period...... The more time it takes , less are the chance of a successful interception. Most modern SAM have terminal Hypersonic engagement speed even against aircrafts including Barak-8 with Mach 7+ & no system is pin point accurate which is mitigated to large part by the size of the warhead they carry.
 
High Speed is necessary for closing the distance fast between interceptor & target at longer ranges period...... The more time it takes , less are the chance of a successful interception. Most modern SAM have terminal Hypersonic engagement speed even against aircrafts including Barak-8 with Mach 7+ & no system is pin point accurate which is mitigated to large part by the size of the warhead they carry.
Yes in general both types of SAM systems tactical or nuke centric BMD, these articles are individually of very high speed in nature. You can find subsonic attack missiles at various altitude, but defensive missiles are generally supersonic to hypersonic (at higher altitude). However your aim is not to reach the engagement point faster because at which point you will intercept is variable and calculated for a nominal coordinate by the OBC, If it is hit to kill then rule of engagement is to reach the engagement point precisely for a successful interception.

What I mean here is when the programs are formulated ie the mathematical calculation part there the parameter is usually relative velocity when you are considering for the terminal engagement. Here the miss distance parameter need to be optimal and low enough so the interception can be proven reliable. This entire calculation also need to suit the degree of control you can maintain over your base article interceptor missile else it would go off balance and vary from course. So you can not control the incoming vectors velocity, but you can control your interceptors velocity tuned to such non exceeding value so the relative velocity value can be fed in the program algo that it has very good degree of interception with respect to own maneuver capability as well as enough kinetic energy in the end game.

The above is considerable for a general engagement situation, it again varies if your rule of engagement is via hit to kill or via hit to disperse. In case of hit to kill you need IIR seeker like visual accurate tracking, something that ASAT deployed. In this case also while you program the interceptor missile for a very high velocity , to maintain control over the interceptor it also need a not exceed value and accurate miss distance is achieved by divert thruster control system influenced small course corrections right up to the hit moment.

The guidance and control algo related science is very fascinating and the actual high end stuff because via this you are making an integrated smart article fly the way you want. Even when you deploy the IIR seeker, that seeker is also on an axis gimbal and move to track, right ? So compared to the missile axis when flying and the gimbal axis when tracking, there exist a small bias in calculation in the data fed by the gimbal system to the OBC. To us it would seem negligible , but at the speed regime these work, that small bias value is enough to achieve a miss distance by hundreds of meters if not a separate program in the on board computing system calculate and correct via another mathematical model program to make the final value error free.

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Hmm.... So like stunner interceptor ? The right most interceptor with a big booster does look like it has a dolphin nose ?

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Stunner has US ITAR components so likely off limits for us. But we don't need it either. An IIR seeker could be accommodated below the nose radome in a smaller fairing. Here's an example of a Taiwanese HF-2
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Stunner has US ITAR components so likely off limits for us. But we don't need it either. An IIR seeker could be accommodated below the nose radome in a smaller fairing. Here's an example of a Taiwanese HF-2
View attachment 44114
that is ashm it looks like, hence one iir seeker on top is enough, but for SAM/AAMs we need symmetrical 4 iir seeker arrangement giving full frontal view like in APKWS, which is has laser seeker in 4 fins
IRNSS and NavIC are same just IRNSS was changed to NavIC, or you meant GLONASS?
BTW all satnav systems will be effected by jamming even if they can take signal multiple constellations just you need to jam wide band of signals.




Laser guided munitions are required for such situations
APKWS kit by BAE US for 70mm rockets,

MAM series of munitions MAM-L/C/T and TRLG(122/230/300) series mrls by roketsan of turkey are some examples, even Bangladesh bought them
 
that is ashm it looks like, hence one iir seeker on top is enough, but for SAM/AAMs we need symmetrical 4 iir seeker arrangement giving full frontal view like in APKWS, which is has laser seeker in 4 fins
Yes, the Korean SAAM would be a better example.

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There would be FOV limitations of such a staggered config but I suspect those would be compensated to a large extent via software.
 
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Hmm.... So like stunner interceptor ? The right most interceptor with a big booster does look like it has a dolphin nose ?

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Won't the IIR seeker in front of the active radar seeker interfere with it or create a blind zone?
1749227230009.png

This is another design, terminal engagement FOV won't be great but at those ranges active radar seeker should be able to track even the best of stealth aircrafts.

Edit: actually this is quite similar to Korean design.
 
Won't the IIR seeker in front of the active radar seeker interfere with it or create a blind zone?
View attachment 44119

This is another design, terminal engagement FOV won't be great but at those ranges active radar seeker should be able to track even the best of stealth aircrafts.

Edit: actually this is quite similar to Korean design.
dolphin nose bend design ensures co-located sensors to work without electromagnetic or optical interference smoothly.
 
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If same KV (fin based steering) in all 3, then altitude seems false .
Been thinking about the same thing. Maybe the range is misquoted as altitude.

Or maybe the missiles shown in this pic are actually to scale:
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Maybe all 3 missiles have the same KV but not the same rocket motor. Maybe the rocket motor of M1 is bigger than the 2nd stage motor of the M2 & M3.
 
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It's hard to believe the same kill vehicle claims. Performance requirements are very broad.