This may be quite significant in the shape of the process. Possibly signifies the 27th test was full success & now they are confident to proceed with the long duration test. This is obviously for ground testing simulation, if true then a major step ahead.
Indian Hypersonic Propulsion Developments
- Thread starter Ashwin
- Start date
Well since we found the hint of the above, kind of very excited & watched back old HSTDV test presentation again! 
Some slides pic posting here, I guess everyone remembers. Found even the nose panel separation part too that Chain Smoker posted long time ago. That was very good. Todays sow interestingly mention mass flow rate will be 8kg/sec which is a whopping 10 times than before, was 0.6200 kg/sec before. This is utterly crazy stuff. Hats off if they can pull it off successfully.
If repeat post or deemed inappropriate please kindly delete it. Pics are from DRDO presentation 2 years ago, very good.
Some slides pic posting here, I guess everyone remembers. Found even the nose panel separation part too that Chain Smoker posted long time ago. That was very good. Todays sow interestingly mention mass flow rate will be 8kg/sec which is a whopping 10 times than before, was 0.6200 kg/sec before. This is utterly crazy stuff. Hats off if they can pull it off successfully.
If repeat post or deemed inappropriate please kindly delete it. Pics are from DRDO presentation 2 years ago, very good.
From the 34th report of the standing committee , this is proof of good work being done like I posted in above posts. Not just academic, now even product based R&D happening.
Good webinar recently, if you want to watch. [via NeutronX post, from there pics were posted by someone in the other forum without any mention. Actual session is the below one]
This is not strictly defence related, but came across this thread today, the late Professor also contributed hugely for the LCA program, all CSIR-NAL testing facilities were upgraded for the project under him. There is a slide in below webinar of him asking then PM Indira Gandhi why no equal support for national aeronautical programs.
The wind tunnel is below one
Found in this below webinar
The wind tunnel is below one
Found in this below webinar
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Extension to the above post, here is video of the event, from the below tweet. Quite significant setup given the role it plays & people attending.
If any of you could find out any video/presentation or papers , abstract, discussion from last months 25th AIAA Hypersonics 2023 event held at IISC it would be very helpful. it was a very good event apparently. In one session it was listed both HSTDV project director & the ETLDHCM project director would discuss progress which they probably did. Sadly i could not find any substantial stuff yet, nothing in usual places.
AIAA Hypersonics 2023 : 25th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
FraMCoS-XI, Fracture Mechanics of Concrete and Concrete Structures
aiaa-hypersonics2023.iisc.ac.in
last we all saw that hush hush press release of testing with the military command also tagged , last year before the February hstdv test
Remembered back in 2018-19 , before the first HSTDV test, in one seminar one of the speakers who were part of the research team at DRDL actually gave detailed working principle demo of the HCM & HGV in development, ie how those are supposed to work. I do not mean tech wise, scramjet etc, that we all have seen. I mean as weapon configuration missile, fixed point scramjet operation for long duration hypersonic mission they called it. Part of it was posted in the proceedings booklet of that seminar.
Do not usually post relatively academic research level stuff, but these were very good that we came across some time back, two of the scientists are from DRDL working on related hypersonics project.
I guess some know that in one previous seminar, one team of academics actually described the basic working principal in detail, how the actual missile is going to be in a firing mission. It was posted in abstract, validated it from a 2nd source. Kinda sensitive because how obscured those info were I guess so did not post anywhere. Might do some day.
Numerical studies and validation of combustor and annular isolator interactions of hydrocarbon based axisymmetric dual combustion ramjet
Experimental validation of liquid hydrocarbon based fuel rich gas generator for high speed propulsion systems
I guess some know that in one previous seminar, one team of academics actually described the basic working principal in detail, how the actual missile is going to be in a firing mission. It was posted in abstract, validated it from a 2nd source. Kinda sensitive because how obscured those info were I guess so did not post anywhere. Might do some day.
Numerical studies and validation of combustor and annular isolator interactions of hydrocarbon based axisymmetric dual combustion ramjet
Experimental validation of liquid hydrocarbon based fuel rich gas generator for high speed propulsion systems
Seems good, I wondered quite a bit about what would be focus of this research work in terms of ISRO and drdo goals.
Maybe it was in the plans, but almost certainly shelved after this fiasco & ongoing case imo
Agni-5 MK2 makes Agni-6 somewhat redundant. Time for us to throw the veil and test 'Surya' and tell the world about our real capability.
Are we sure that Surya is something else? to me it always felt Shaurya was mistaken with it. Likely situation is we are re-doing our MRBM, IRBM & ICBM arsenal with better modern technology infused versions, like A1P. A5 itself is 7-8K km, means with 1ton payload it would do 10k easily imo. So ICBM range is not an issue, making our relatively smaller warhead yield to do the desired damage accurately over very long distance is the target.
Rest, about the distance part, that should be attributed to the nuke SSBN subs & SLBM development. A land launched 10k+ km ICBM will never give your distant adversary the chill feeling like what some SLBM would do. New class SSBN with k5 BM suddenly making an appearance in one of oceans will be something very few land based systems can match.
"Surya" ICBM project has existed for long. I read about it in a book bought in 1999/2000(can't remember the exact year!!)(परमाणु बम). Here is something to ponder: