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Yes, I agree with this. DRDO's current air balloon has 14 day life before it needs refilling. So, these kind of permanent airships appear really out of the blue. If Helium/Hydrogen storage was this easy, I would have been using hydrogen as fuel for all vehicles and replaced fossil fuel

These can be made enmasse for Indian consumption. Exporting would be violative of Russian IP. Russia gave it to India to help India, not for India to make profits

Tank chassis is made in certain way as to have certain engine e=design. Diesel engine did not get serious upgrades in the past decades by usage of super alloys or anything. So, the Russian engine design is good enough and it is unlikely to get any more juice by changing design.

Indian engines are of good quality too. Regardless of the peak power, quality of India-made engines is good enough. Also, do you have source of 1100H engines? Are you sure that the 1100HP is not after turbocharge?

Imported share of 'indigenous' weaponry down from 48% to 40% in last 4 yrs Import dependence remains a major problem even in indigenous weapons systems, with up to 40 per cent of the value of “Made in India” armaments accounted for by components sourced from abroad, said Secretary for Defence...

1000HP is always the normal peak and not turbocharged peak. India only indigenised Russian engine and not built a new one. In 2014, th engine was 73% indigenous while it is fully indigenous now. The engine has not been changed from Russian to Indian design. Tata Sumo has 70BHP engine while it...

T90 tanks are light weight with 45 ton weight. So, 1000HP is enough for it. Arjun tank weighs 67tons and it was stated to get 1400-1500HP engines. Too high powered engines will badly affect range.

I posted picture of Agni-1 to make it loud and clear that even the smallest Agni missile can't fit in. Pralay is a ballistic missile of 350km range. It is a substitute for Prithvi missiles but with solid fuel. It is a ballistic missile indeed.

This is Agni-1 missile TEL. Just compare the length in this picture to the original @porky_kicker photo. Your photo has too much of slant angle and hence depth perception is altered.: Now compare the length of the tyres to the total length of missile including the part which is projected...

Have you considered the measurement of length of the trolley before calling it a transporter of missile? Why would you need a truck to carry small missiles like Nirbhaya, Pralay etc instead transporting them in bulk? It appears like a tanker with pumpset to me.

The red thing at the back is the crane for lifting or tilting the tube. Hence it is a TEL. Also, it is unlikely to be a transporter that is transporting a single missile in a complicated tube instead of transportation in bulk inside goods train or C17 planes. The diameter of each wheel can be...

The number of tires is too much and the truck appears awefully long, Is it Agni-5 TEL?

This is fantastic. Tejas had to import this silica radome from UK as it could not get it in India. Teh Indian radome was found to be deficient. This was i 2013. But, the speed with which they developed the radome is really astounding. The project probably started in 2014-15 and must have been...

180nm is the right technology for defence items. The lower nm chips are mainly for power efficiency and faster computation with limited power. However, they are not capable of handling temperature fluctuations and crash at times. 180nm is more robust and can last decades and survive fluctuations...

DRDO chief Christopher had said that low voltage GaN has been completed. So, I think India is not yet fully ready but in path of progress. Also, none in the world has a GaN radar fully functional yet. Most appear to be in trial phase or ones that are not significantly better than GaAs ones

Yes, if one had read carefully, the article posted by @Prashant12 said: It was apparently only the test of nozzle less booster and not the SFDR itself. This makes sense as testing is done for every stage separately so as to be able to identify the problem easily. I guess, many of us missed...

It was mentioned that the sole purpose was to test the ducted motor and its ability. Other tests will be done afterwards. So, it is a TD for use in future homing missile projects like SAM/AAM

Just look at the diameter of the missile and diameter of the white pole of the shed nearby. Both are roughly at the same distance from the camera. I would say that SFDR is a thin missile. Akash missile is much thicker than SFDR and it weighs 720kg. You are saying that just the booster of SFDR...

As I said, there may be goodwill angle also. In addition, the key difference is propulsion chemical fuel which has to vaporise from Solid to gas.

Don't forget that Brahmos engine is Russian which they have not yet given to India or license production. India is indeed free to reverse engineer and make on its own. Also, the fuel for SFDR is solid which will vaporise to gas and get mixed in the incoming air before burning. So, the fuel...