Bharat Rakshak

thammu

I too agree with the general view. It's better to test fast and furious and fail here and there, rather than go for a slow fail safe testing mode.

thammu

Second firing

India successfully test-fires K-4 submarine-launched nuclear capable missile

Read more at: https://www.deccanherald.com/national/i ... 97968.html

thammu

Second Chandrayaan 2 Launch Attempt Likely This Month: https://www.ndtv.com/india-news/second-chandrayaan-2-launch-attempt-likely-this-month-after-lift-off-aborted-due-to-technical-snag-s-2069755?pfrom=home-livetv

thammu

Kakarat wrote:I will be going and most probably by train haven't finalised transport yet

https://sr.indianrailways.gov.in/cris/u ... NEL-DN.pdf
https://sr.indianrailways.gov.in/cris/u ... NEL-UP.pdf

Be in touch. bumeshrai@hotmail.com

thammu

uskumar wrote:To watch Chandrayaan 2 launch live at Sriharikota, online registration will be started soon. People can visit launch site and see it live.

Anybody from Chennai going? I would like to hitchhike.

thammu

Kakarat wrote:Anyone planning to go to GSLV MKIII-M1 / Chandrayaan-2 Launch?
Registration for the viewing gallery starts tomorrow

Any link to register?

thammu

thammu

Before 2014, I had no hope on ISRO cryogenic technology either. Today, we are seeing 3500 kg heavies launched twice a year. We airily talk about matching Ariane using SB stages. Just 4 years back, 1800 kg was unobtanium. With Kaveri, it's the same condition, the physics and the engineering. Once it...

thammu

ks_sachin wrote:
thammu wrote:

What is 'lofted trajectory'?

You dont know..
Scientists stand in a ring around mizzile. They lift it by base and then loft it in a synchronised manner.
One of the even lights the fuze which is lit with matchstick lighting a thread poki g out of engine nozzle!!!

thammu

prasannasimha wrote:Supposes to be first lofted trajectory test

......... lofted trajectory for the 1st time.........

What is 'lofted trajectory'?

thammu

Kaveri on LCA

Sorry, if this has appeared earlier!

https://www.youtube.com/watch?v=6XGjKDCaUcc

thammu

Great discussion on Astra.

+++1

thammu

Propaganda piece from the statesman deleted - Karan M I am an occasional contributor but an avid reader of this forum - especially on the topic of LCA, Kaveri, and ISRO. Success in any of these topics makes me feel very proud as being a member soon to be a senior citizen generation, I understand th...

thammu

Katare wrote:Why test it in Ukraine? Are we missin testing infra or some tech tie up with Ukrainians?

The technology has been bought from Ukraine - refer wikileaks

thammu

India successfully test-fires nuclear-capable Agni-5 http://www.thehindu.com/news/national/india-successfully-test-fires-nuclear-capable-agni-5/article24071775.ece The long-range ballistic missile has a strike range of 5,000 km India on Sunday successfully test-fired from Dr. Abdul Kalam Island off...

thammu

What does nozzle less stand for? See this paper from IIT Madras folks to understand what nozzle less means. https://www.scribd.com/document/82023747/Effect-of-Motor-Length-and-Propellant-Formulation-on-Nozzle-Less-Solid-Rocket-Performance After reading this, go back to the schematic posted by IR ab...

thammu

nam wrote:
abhik wrote:BTW what exactly is a nozzle less rocket/booster?

It is the booster inside the missile and is part of the missile. Used to launch the missile, just like how it is done in Akash & Meteor.

What does nozzle less stand for?

thammu

Big Brother's endorsement!! Pak's JF-17 aircraft of present, but Tejas aircraft of future : IAF chief http://www.business-standard.com/article/pti-stories/pak-s-jf-17-aircraft-of-present-but-tejas-aircraft-of-future-iaf-chief-118042700019_1.html Air Force Chief B S Dhanoa today said if Pakistan's f...

thammu

Tejas proves its mettle in biggest Indian war exercise Gagan Shakti 2018 http://www.business-standard.com/article/current-affairs/tejas-proves-its-mettle-in-biggest-indian-war-exercise-gagan-shakti-2018-118042500089_1.html The indigenously-manufactured Light Combat Aircraft (LCA) Tejas has performe...

thammu

If ISRO can pull it off and I hope they do, it will be nothing short of miraculous. This is the normal strategy of management to give hope to stakeholder, till the incident fades away from memory. So don't expect any miracle! Having said that, ISRO has achieved phenomenal success through the years ...

thammu

SSridhar wrote:Obviously, it was not a normal test of a missile drawn from a production batch and carried out by the usual Missile Group.

I think Indian made seeker was the difference from routine.

thammu

https://twitter.com/strategic_front/status/975121571282145280 ---> Indian Air Force 45 Squadron flying Tejas closing in on 1,000 sorties since July 2016. Huge amount of hours accumulated in such a short time with such a limited number of jets. Speaks very highly of the LCA's serviceability and avai...

thammu

Then please tell, endurance figures for Tejas vs. Gripen or if there is no such spec figure as 'endurance', then the range in km. If you can do some maths yourself, you'd be able to tell. Gripen C vs Tejas Mk1 fuel figures are almost the same, perhaps a difference of a few kgs. i.e. ~2400 kgs fuel ...

thammu

Then please tell, endurance figures for Tejas vs. Gripen or if there is no such spec figure as 'endurance', then the range in km. The real figures are classified for any of the jets. Published figures are to be always taken with pinch of salt, unless they are from actual fight manual (declassified)...

thammu

Why do all newspaper keep reporting - Tejas has lower endurance than Gripen by a factor of 2-3. Both are similar aircraft with similar engines and similar weight? Can an Expert explain to a non-expert like me? It's all the more intriguing as Tejas went non-stop to Bahrain air show. Why? Because .. ...

thammu

Why do all newspaper keep reporting - Tejas has lower endurance than Gripen by a factor of 2-3. Both are similar aircraft with similar engines and similar weight?

Can an Expert explain to a non-expert like me? It's all the more intriguing as Tejas went non-stop to Bahrain air show.

thammu

8ZRtrzrtGeQ The subtitles for the video are here: Prez Macron is coming for More Rafales and Kaveri Engine Ecosystem . Results are much better than what we thought earlier for Kaveri engine. For a half life of present M88 and moving towards 1/3rd of the life, the net trade off resulting from stable...

thammu

Is this, what SAFRAN's final offer on TOT - "Cable Harness" :rotfl: Safran to set up unit in Telangana http://www.thehindu.com/news/cities/Hyderabad/safran-to-set-up-unit-in-telangana/article23036732.ece Safran Electrical & Power, a global leader in electrical systems in aeronautics, w...

thammu

Rakesh wrote:Read the tweets above your posts please....

It was a reply to the tweet. The joint statement was issued after the tweet.

thammu

Sorry folks, no good news. NDTV reports:

....Today's joint statement says ''the leaders noted ongoing discussions between DRDO and SAFRAN on combat aircraft engine and encouraged necessary measures and forward looking approaches to facilitate [an] early conclusion.''....

thammu

Khalsa wrote:

Apologies if someone has asked before. Why is SP5 delayed and out of sequence ?

idrw wrote:....LCA-Tejas-SP-5 was first aircraft coming out of the second production line and was facing technical issues due to workmanship issues leading to suspended ground trials a few months back.

thammu

Important (and Happy) Update from Anatha Krishnan.... https://twitter.com/writetake/status/941940720293654528 ---> 6th Series Production fighter from Tejas flightline (SP-7), had its first flight on Dec 12th. SP-5 from 2nd production line (Aircraft Div, HAL) will be next to fly . Platforms up to SP...

thammu

Another One!! The import lobby is firing on all cylinders!! Tejas is not fit for skies: Is Modi's Make In India coming in the way of armed forces? https://www.dailyo.in/politics/tejas-make-in-india-fighter-jet-marut-iaf-narendra-modi-nehru/story/1/20512.html The indigenously made single-engine figh...

thammu

Tejas far behind competitors, not enough to protect Indian skies: IAF http://indiatoday.intoday.in/story/tejas-indian-air-force-f-16-mig-21-fighter-planes-ajit-doval/1/1086425.html Tejas - the indigenously made Light-Combat single engine fighter - isn't enough to protect Indian skies, the India Air...

thammu

DRDO ties up with Snecma to revive gas turbine engine for Tejas http://www.business-standard.com/article/specials/drdo-ties-up-with-snecma-to-revive-gas-turbine-engine-for-tejas-116112000534_1.html India’s defence research agency has signed a deal with French engine maker Snecma to revive and certi...

thammu

SSridhar wrote:The orbital requirements are vastly different....

Thanks. Understood now.

thammu

SSridhar wrote
...PSLV puts the payloads into a polar orbit which is at 90deg to the GSO and at altitudes of only ~700 Kms....

Sorry, what I meant was -- GSLV can release all the polar load at ~700 Kms, and then go ahead to GTO. Or carry more tonnage to 700 kms than a PSLV.

thammu

A newbie question: Why is GSLV MK II planned for only 2 launches/year. Why cannot it take PSLV role as we have mastered Cyro and Multiple Satellite launch.

thammu

Why Isro's scramjet flight demonstration is significant http://www.business-standard.com/article/current-affairs/why-isro-s-scramjet-flight-demonstration-is-significant-116082800279_1.html The flight demonstration of the hypersonic air-breathing dual mode ramjet engine, which uses atmospheric oxyge...

thammu

Any update on AAD?

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