DRDO and PSU's

[Bleh]

Eh . Just look up the publicly available brochure for the cockril turret . It states "upto" stanag 5.

That's 30° arc protected to 25mm... Not great, not terrible. Can be uprated to 6+ like the hull 40mm without to much weight gain. It was never meant stand against the chinki tanks' main gun. That's why it needs all the APS & jammers we can mount.

For that I said the 120mm Arjun gun that can shoot CLGM. We could get rid of those launchers.

 

[Blood+]

Srsam has a 25+ km range.

View attachment 9240

View attachment 9241

It has TVC like Qrsam for extra agility.

If we follow the standard rule of one third, then it should have a range of ~35 km.

 

[Arihant Roy]

SRSAM has again been tested today.

There will be another round of test in the afternoon.


View: https://x.com/TheHemantRout/status/1834469924661596231

According to Mr Hemant Kumar Rout, Srsam has a 80 km range which I highly doubt.

Astra mk1 has a 80-110 km range. So Srsam will have a range in the vicinity of 25-35 km. It may be a bit less because Srsam has a higher mass than Astra due to TVC assembly.

With today's morning test, Srsam has been tested for 8 times.

 

[Fatalis]

India tests Vertical Launch Short Range Surface-to-Air Missile

Read more At:

https://www.aninews.in/news/national/general-news/india-tests-vertical-launch-short-range-surface-to-air-missile20240912195419/

 

[Arihant Roy]

Since the PIB release published yesterday that an updated seeker was tested, I think that the new Ku band aesa seeker may have been installed in Srsam.



The seeker has a 145 mm dia.
Aperture has a dia of 140 mm.
The seeker has 164 elements.

It has a range of 15 km for 4 sqm targets which is avg.




Astra builds the seeker.

 

[Fatalis]

View: https://x.com/DRDO_India/status/1834509978356351436?t=_DW8BOz7zPZ6XKEQncHPmw&s=19

 

[Blood+]

It has a range of 15 km for 4 sqm targets which is avg.

That's less than average!! Are you certain about it?? What's the peak power rating of this thing??

 

[Fatalis]

Initially IN had a requirement of 14 systems of VL-SRSAM. Although, it is very tough to determine which old platforms will get this system but IMO:

4 Kamorta class
3 Brahmputra class
3 Delhi class
4 Kora class

The new platforms will be:
6 NGMV
2 + 2 LHD

Though I would love to see Navy putting VL-SRSAM together with MRSAM for double layer protection on the current PSC but I doubt this is going to be the case. MRSAM will most probably be paired with PGLRSAM.

 

[Fatalis]

View: https://x.com/rajatpTOI/status/1834601610430779478?t=wfo0FZNvcX4BTFOGPCKzPQ&s=19

 

[Ayan Barat]

> wiki
> Astra Mk-II 160km
> Astra dual pulse, VL-SRSAM too
> but ground launched
> half it

This seems to be the most probable source of this 80km range.

 

[Fatalis]

> wiki
> Astra Mk-II 160km
> Astra dual pulse, VL-SRSAM too
> but ground launched
> half it

This seems to be the most probable source of this 80km range.

Actually, this comes from the PIB report published by MoD last year

 

[Ayan Barat]

Actually, this comes from the PIB report published by MoD last year

And what makes you think they can't good up!?
This is Akash-NG...with less than half the range of VL-SRSAM

 

[Satish Sharma Ji]

Since the PIB release published yesterday that an updated seeker was tested, I think that the new Ku band aesa seeker may have been installed in Srsam.

View attachment 9312

The seeker has a 145 mm dia.
Aperture has a dia of 140 mm.
The seeker has 164 elements.

It has a range of 15 km for 4 sqm targets which is avg.

View attachment 9313


Astra builds the seeker.

Is it GaAs based ?

 

[Satish Sharma Ji]

> wiki
> Astra Mk-II 160km
> Astra dual pulse, VL-SRSAM too
> but ground launched
> half it

This seems to be the most probable source of this 80km range.

No the 80km number was published by PIB.
While the actual number is 40km also saw it on dfi now forgot the source. However this is conflicting as drdo published astra mk1 has 21km range from sea level..

I think they must have downgraded the specs. For publication nobody publishes this dedicated altitude to range specs as far as I know..

While 80km figure I think it must have been just the distance missile travelled. Obviously if has range of 40km it won't fall off after that. Even though if it's not capable of munuevering or intercepting.
Just my speculation lol.

Also we can't say for sure the 110km range figures to true it could be more and the dimensions it posses it should be capable of more.

Also this range thingy always goes over my head is it about a missile with high enough energy for a distance to intercept or just a free long max distance travelled by missile ?
And why would they release so important numbers ? That's why our basis to judge vlsrsam goes wrong.

According to Mr Hemant Kumar Rout, Srsam has a 80 km range which I highly doubt

Astra mk1 has a 80-110 km range. So Srsam will have a range in the vicinity of 25-35 km. It may be a bit less because Srsam has a higher mass than Astra due to TVC assembly.

With today's morning test, Srsam has been tested for 8 times.

I think 40km is trustable figure.
Vlsrsam is longer missile to accomodate TVC they might have increased some fuel.
Or would have just kept it same for ease of logistics.

 

[Satish Sharma Ji]

No the 80km number was published by PIB.
While the actual number is 40km also saw it on dfi now forgot the source. However this is conflicting as drdo published astra mk1 has 21km range from sea level..

I think they must have downgraded the specs. For publication nobody publishes this dedicated altitude to range specs as far as I know..

While 80km figure I think it must have been just the distance missile travelled. Obviously if has range of 40km it won't fall off after that. Even though if it's not capable of munuevering or intercepting.
Just my speculation lol.

Also we can't say for sure the 110km range figures to true it could be more and the dimensions it posses it should be capable of more.

Also this range thingy always goes over my head is it about a missile with high enough energy for a distance to intercept or just a free long max distance travelled by missile ?
And why would they release so important numbers ? That's why our basis to judge vlsrsam goes wrong.



I think 40km is trustable figure.
Vlsrsam is longer missile to accomodate TVC they might have increased some fuel.
Or would have just kept it same for ease of logistics.

Munuvers reduce missile range I think if missile goes flies straight without munuvers it will reach 80km mark.

They should try this booster or similar optimised one on vlsrsam that will result a dual pulse variant.
The vls system is 5m in height..

 

[Bleh]

SRSAM has again been tested today.

There will be another round of test in the afternoon.


View: https://x.com/TheHemantRout/status/1834469924661596231

According to Mr Hemant Kumar Rout, Srsam has a 80 km range which I highly doubt.

Astra mk1 has a 80-110 km range. So Srsam will have a range in the vicinity of 25-35 km. It may be a bit less because Srsam has a higher mass than Astra due to TVC assembly.

With today's morning test, Srsam has been tested for 8 times.

Is SRSAM dual pulse, like Astra Mk2?
Because otherwise it won't need TVC. Fuel of BVRs go out quickly & after that it's flying on inertia... Only if it has a 2nd pulse at engagement ranges will TVC be in any use.

And if it is really dual-pulse based on Mk2 (because that's where TVC will have any effect) then it's original range should be near 150km. Saving some fuel for the 2nd burst, we can deduce it'll have a range of 50km+

Munuvers reduce missile range I think if missile goes flies straight without munuvers it will reach 80km mark.

They should try this booster or similar optimised one on vlsrsam that will result a dual pulse variant.
The vls system is 5m inh height..

Quick question.. what's that SFDR looking SAM?

 

[Adm_Kenobi]

Munuvers reduce missile range I think if missile goes flies straight without munuvers it will reach 80km mark.

They should try this booster or similar optimised one on vlsrsam that will result a dual pulse variant.
The vls system is 5m in height..
View attachment 9366
View attachment 9368

The VLS is 5m in height, but the cell is around 4m long. The rest is to divert the flow to uptake chambers.

 

[Satish Sharma Ji]

Quick question.. what's that SFDR looking SAM?

Dude among all the tests happened of SFDR all were from ground. Basically for propulsion testing. The inbuild booster isn't enough to propell enough so that ramjet can kick in as it has to accelerate from zero and also against gravity so that's why this additional booster was added to send SFDR at a altitude after which nozzle less booster would burn giving it desired speed and then ramjet would take over.
With such booster we can extract bvr like ranges I suppose that booster was only meant to reach some altitude so that they can also test nozzle less booster. Drdo also talked abt the prospects of using this booster or similar for SFDR based sam.
I took the ratio from image turned out the booster length is 1.9m if missile lengths 3.84m.

 

[Satish Sharma Ji]

The VLS is 5m in height, but the cell is around 4m long. The rest is to divert the flow to uptake chambers.
View attachment 9373

So there iS no such scope.

 

[Satish Sharma Ji]

Is SRSAM dual pulse, like Astra Mk2?
Because otherwise it won't need TVC. Fuel of BVRs go out quickly & after that it's flying on inertia... Only if it has a 2nd pulse at engagement ranges will TVC be in any use.

And if it is really dual-pulse based on Mk2 (because that's where TVC will have any effect) then it's original range should be near 150km. Saving some fuel for the 2nd burst, we can deduce it'll have a range of 50km+

Vlsrsam is last resort. As we say brahmos gives only 25 second window to intercept
So similarly it will be used against missile which has e penetrated lrsam cover via earth horizon after which it is detected by onboards radars as after 50-60km horizon isn't there so low flying missiles will detected. for example if it is sea skimming subsonic then the window is 60-80 seconds and vlsrsam can intercept that easily no need for TVC.

Now if it's a supersonic Chinese missile supposedly doing sea skimming resulting detection only after 50-60km due to horizon. which will give only a window of 25 seconds there this TVC will be helpful as this missiles are very fast and they do s munuvers in terminal phase.

So vlsrsam TVC has this job to do.
It will never be used instead of lrsam if hey had to intercept anything. If not last resort.