What’s is the bottom left?
fourth quadrant bhai. The HSTDV is the one resting on that yellow jig.
I think you have intended to write 'floating test range' .
Referring to the image from Prasun Da's blog:
May be two separate ships are being built.
Ref:
TRISHUL: DRDO-Owned & Navy-Operated MRIS Vessels Take Shape, As Does The S-3 SSBN
SLS - Interesting - Could also mean - arming - Non-combat ship/non-front line ships. ?Also is the SLS meant for DRDO's Technology Demonstration Ship which might be a floating text range & not a MRIS as suggested earlier ?
Yup... BTW I was talking abut DRDO vessel being built at CSL, not HSL built MRIS.
DRDO Technology Demonstration Vessel - Wikipedia
OPVs ?
There is No need to be Egoistic and Emotional about technological transfers from where ever it is possible
Also there is NO need to be Obsessed with using DRDO made technologies
We have a huge defence expenditure
We can easily leverage it for getting technology
Everything has a Price
Even if Israel gives us technology ; it knows that India's NAG missile
is not going to compete with Spike in International markets
Also every ToT is not done in a formal manner
ie Govt to Govt basis
Earlier there used to be a system of consultants from
Russia ; Europe etc
And our scientists also travel abroad for this purpose
Govt of India will NOT reveal every detail to the people
Indigenisation and Technological Development is a Slow process
We cannot wait for ever for DRDO to develop something
And even after we get a technology from abroad ; we can always
improve it ; enhance it
Scientists are realistic and practical people
They know their limitations
If a weapon system is 50 Percent Indigeneous today
It can Increase to 100 percent in Ten or Twenty years
depending upon the complexity ; cost and availability
That is how things Move in real life
All this false pride looks good ONLY on Internet chat forums
Ultimately You have to deliver results
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I was only specific to ATGMs and we were looking for tech from US not Israel. India canceled spike deal if you weren't aware. And wasn't sanctioned in recent DAC meeting too. Spike sucks DRDO develop their own ver. LAHAT sucks for Arjun, DRDO developing their own ver.
We're not idiots here, i can guess missile systems where DRDO may have taken foreign help though not mentioned publicly.
Pralay missile weigh 5 tons while SLS can launch upto 7 tons, just guessing.
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Well, actually, I have taken into account both. BTW, that HSTDV airframe is a good find.
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Prasun Da shared the link of May - June 2018 issue of DRDO's Technology Focus Magazine, in his blog:
Probably Astra mk2, lot of articles talking about DRDO SFDR on internet.Would be our desi Meteor.Date on some of these articles is January 2018.Maybe they got wind of an impending test.Here is one such article->
DRDO’S precious ‘Project SFDR’: Connecting the Dots
DRDO’S precious ‘Project SFDR’: Connecting the Dots
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so a solid booster for initial push and reaching optimum speed to light up the ramjet and then the ramjet for sustained flight?
such arrangement will sure increase the range compared to a pure solid fueled air to air missile (Assuming the test was ASTRA?) . The new Astra with such arrangement will have a longer range...but there are certain other things to be considered in any air to air missile.
The missile being very narrow has very low tolerance for heat and inside components heat up very fast. Especially at those hypersonic speeds.
Has anyone any info about the cooling system used in ASTRA? if at all? because there are two types of Air to air missile, the cooled ones and the non colled ones. Later type will have deterioration in accuracy the further it goes as inside electronics will heat up and same as a heating up the computer will incur errors.
such arrangement will sure increase the range compared to a pure solid fueled air to air missile (Assuming the test was ASTRA?) . The new Astra with such arrangement will have a longer range...but there are certain other things to be considered in any air to air missile.
The missile being very narrow has very low tolerance for heat and inside components heat up very fast. Especially at those hypersonic speeds.
Has anyone any info about the cooling system used in ASTRA? if at all? because there are two types of Air to air missile, the cooled ones and the non colled ones. Later type will have deterioration in accuracy the further it goes as inside electronics will heat up and same as a heating up the computer will incur errors.
Work on astra mk2 haven't started yet. Possibly XR-SAM, RudraM, NASM & many more will use this tech.
India hits strategic milestone with successful test of surface-to-air missile
BHUBANESWAR: In a major breakthrough in missile technology, India on Wednesday successfully carried out the first test of a new surface-to-air missile with nozzle less booster making its mark as a military superpower in South East Asia region. Indigenously designed and developed by the country’s premier research agency - Defence Research and Development Organisation (DRDO), the fastest missile in its class is capable of neutralising fast moving aerial targets.
Defence sources said the missile, which is yet to get a formal name, was flight tested from launching complex-III of the Integrated Test Range (ITR) off Odisha coast at about 12.05 pm. The missile, powered by Solid Fuel Ducted Ramjet (SFDR), was fired from a static launcher meeting all mission objectives.
The missile flew in its intended trajectory at a speed of Mach 3 (thrice the speed of sound) and performed as expected perfectly validating the new indigenous technology. “It was a booster phase test of the missile and the mission was a major milestone for the strategic missile programme. The nozzle less booster and SFDR were tested successfully. We can now master the technology which will boost several next-generation weapon systems,” a defence official told The New Indian Express over the phone from New Delhi.
All radars, telemetry and electro-optical systems deployed along the coast tracked and monitored the health parameters of the missile system that has faster reaction time. The data generated during the test are being analysed for future missions.
“It is indeed a great achievement for the Make-in-India programme. Several other components of the missile, including the seeker with advanced technology, will be put to tests soon. Though the range was not a matter during the maiden trial, the missile will definitely have a longer strike range than the existing similar systems in the arsenal,” the official said.
Even as India has surface-to-air missile systems like Akash, Break 8, QRSAM and all-weather beyond visual range air-to-air missile Astra, the indigenously developed SFDR will help the country master in the cutting edge technology which was secured by a few selected nations so far.
“The new technology will help both surface-to-air and air-to-air missiles perform better and enhance their strike range making the weapons more lethal. Now India can have fastest long-range missiles in the two categories providing a full-fledged and multi-layered aerial protection from hostile attacks,” the official added.
Here's the pic of yesterday's test firing of SFDR released by MoD.
https://pbs.twimg.com/media/DeiaF-WXkAIJfa2.jpg
https://pbs.twimg.com/media/DeiaF-WXkAIJfa2.jpg
The booster seems to be a crude design will be separated after 1st phase burnout.By looks ...Actual missile carrying out the genetics of ASTRA.Here's the pic of yesterday's test firing of SFDR released by MoD.
https://pbs.twimg.com/media/DeiaF-WXkAIJfa2.jpg
Ofcourse - you can't start a Ramjet from the ground, the missile already needs to be in subsonic flight for the Ramjet to start functioning.
Ramjets, like Scramjets have no moving parts. There are no spinning blades like on a turbofan that force air into the chamber - air already needs to be moving at a certain rate through the chamber prior to ignition.
The test was SFDR which means it's a project meant to develop Ramjet propulsion for a variety of applications, although most probable use is for Astra Mk-2.
But in Air-to-Air application you don't need that huge booster because you are not starting from zero kph. The launch aircraft is already flying at speed. For any additional push, an integrated mechanism within the cumbustor takes care of that (like on Meteor).
Cryogenic cooling of onboard seeker is for IIR-guided missiles. And that's for two reasons:
1) Keeping the seeker cool increases its sensitivity against heat emissions from targets, not doing so would reduce sensitivity (as a result there hasn't been such a thing as uncooled IIR AAM for a long time).
2) IIR seeker has to stay 'on' for much longer periods than RF seeker. Some planes even use the seekers on IIR missiles as IRST while still attached to the pylon.
RF seeker stays 'off' for most of the time. Before launch, during launch and for a significant amount of time after launch, the RF missile is simply relying on the launch aircraft's radar. It's own seeker only comes online when it is already very close to the target - so the actual period where the seeker is online during a fire mission is all of a FEW SECONDS.
You don't need cooling for that. At least not for present generation of RF seekers which are of slotted-array type.
But once you move to AESA seekers (like on Japanese AAM-4B, Russian K-77M project and the new UK-Japan project for Meteor) then you might need liquid cooling.