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PostPosted: 26 Dec 2012 20:01 
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In our missile arsenal, I feel that we are missing following missiles:-

1. Unguided run of the mill RPGs for infantry

2. Air to Air (IR guided) WVR missile

3. Variants of Air to ground 300-600kg missile for complimenting/replacing K-25 & 29 series. I think that variants of LRSAM can be very good candidate for a family of such missiles.


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PostPosted: 27 Dec 2012 06:26 
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K-15 ALL SET TO JOIN ARIHANT -11TH SUCCESSFULL TEST FIRE ON WEDNESDAY
T. S. SUBRAMANIAN/Y. MALLIKARJUN
http://www.thehindu.com/sci-tech/techno ... 242325.ece

Quote:
The underwater missile successfully tested off Visakhapatnam coast

The Defence Research and Development Organisation (DRDO) ends 2012 on an upbeat note, successfully launching the underwater missile K-15 off the Visakhapatnam coast on Wednesday. The missile darted 20 km into the air, after a gas generator ejected it from the pontoon that lay submerged a few scores of metres in the Bay of Bengal, and sped 650 km before splashing into the sea in its 11th flight trial.

After one more flight, the two-stage missile will be integrated with Arihant, India’s nuclear-powered submarine, and test-fired from the ship. “It is a fantastic system. It is a very powerful and accurate system,” said A.K. Chakrabarti, Programme Director, K-15, and Director of the Hyderabad-based Defence Research and Development Laboratory (DRDL), which designed and developed the missile.

“India is the fifth country to have an underwater launch system. The other countries are the U.S., Russia, France and China,” he said.

Avinash Chander, Chief Controller (Missiles and Strategic Systems), DRDO, termed it “a good flight” and said the test “formed part of the pre-production clearance.” Twelve K-15 missiles, each 10 metres long and weighing six tonnes and capable of carrying nuclear warheads, will form part of the deadly arsenal of Arihant, which is powered by an 80-MWt reactor that uses enriched uranium as fuel and light water as coolant and moderator.

Informed sources said the reactor had already been integrated with the Arihant at Visakhapatnam. “The commissioning process is on,” they said. The reactor would reach criticality within the first few months of 2013. The harbour trials of the ship have been completed, and it is ready for sea trials.

India has been developing the K-4 missile, to be launched from submarines. It will be more powerful than K-15, with a range of 3,000 km.


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PostPosted: 27 Dec 2012 07:07 
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India made progress steadily in Energy management of Solid propulsion. This ascendancy started in Ballistic program was much critical to the success of the BMD program and its application can be noticed in Agni-I, Agni-V, Agni-IV and Shourya. We are going to see this in all other areas including Air to Air Long Range missile. We Ahhhed and Ohhhed as it was mentioned 50% increase in range for AIM-120D from AIM-120C7. I believe it is acutely possible in our DRDO AAM program too.


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PostPosted: 27 Dec 2012 07:23 
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vic wrote:
In our missile arsenal, I feel that we are missing following missiles:-

1. Unguided run of the mill RPGs for infantry

2. Air to Air (IR guided) WVR missile

3. Variants of Air to ground 300-600kg missile for complimenting/replacing K-25 & 29 series. I think that variants of LRSAM can be very good candidate for a family of such missiles.


LRSAM from the beginning is designed with the principle of AAM. Israelis have rich experience in AAM & converting AAM as SAM. So it wont be a good candidate for such family.

I think(wild guess) Nano missile (mentioned) in one of the appln could be part of F-INSAS program.


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PostPosted: 27 Dec 2012 07:48 
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Minor typo in hindu article. Missile darted 20km in the air should be 20m.


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PostPosted: 27 Dec 2012 08:08 
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Quote:
The Defence Research and Development Organisation (DRDO) ends 2012 on an upbeat note, successfully launching the underwater missile K-15 off the Visakhapatnam coast on Wednesday. The missile darted 20 km into the air, after a gas generator ejected it from the pontoon that lay submerged a few scores of metres in the Bay of Bengal, and sped 650 km before splashing into the sea in its 11th flight trial.

Damn, if only a video of this could be leaked on net?
This jingo might just collapse out of orgasmic delight! 8)


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PostPosted: 27 Dec 2012 08:28 
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patience birader. I have a feeling the arihant launch video if successful, will be made available...to send a message out loud and clear.

ofcourse the sustained 45 second big-O will be the K4 launch from arihant, perhaps in 2-3 yrs time.


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PostPosted: 27 Dec 2012 08:55 
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Our Chinese friends should be able to provide a grainy picture/video.


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PostPosted: 27 Dec 2012 09:37 
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Singha wrote:
Minor typo in hindu article. Missile darted 20km in the air should be 20m.

That is correct its flight altitude is around 20 Km unless you are referring to the altitude at which booster fires' which should be less than 20 meters?


Quote:
“India is the fifth country to have an underwater launch system. The other countries are the U.S., Russia, France and China,” he said.

This is not going to sit well with Royal Navy Buffs :lol:


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PostPosted: 27 Dec 2012 09:45 
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a 650km flight at a height of only 20km(65000ft)? I dont think so..it aint shourya=40km/2 here. even a fighter plane could swat it down.
its apogee will be a lot higher around 100km maybe.


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PostPosted: 27 Dec 2012 09:56 
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K-15 reaches a height of 20 Km and then follows a parabolic path of ~750 Kms.


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PostPosted: 27 Dec 2012 10:05 
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er source? :((


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PostPosted: 27 Dec 2012 10:23 
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This underwater K-15 test is significant. I'm so used to Indian govt. organizations missing deadlines I was skeptical of the 2014 goal of an underwater nuclear deterrent. But it looks like India will pull it off after all. Wow!


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PostPosted: 27 Dec 2012 10:28 
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Guys, Arun Vishwakarma's article on the Shourya/Sagarika missile would answer a lot of questions. It's excellent. http://www.indiaresearch.org/Shourya_Missile.pdf


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PostPosted: 27 Dec 2012 11:07 
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Avinash Chander on Shourya
Quote:
Mr. Avinash Chander said it was “an entirely atmospheric flight” at a height of 40 km.


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PostPosted: 27 Dec 2012 11:29 
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Avarachan wrote:
This underwater K-15 test is significant. I'm so used to Indian govt. organizations missing deadlines I was skeptical of the 2014 goal of an underwater nuclear deterrent. But it looks like India will pull it off after all. Wow!

Avarachan, per all reports, K-15 has already been under production. These tests may be to fine tune some aspects of K-15 or act as cover for K-4. Sometime back, it was reported that an underwater test of K-4 would be conducted by end-2012 or early-2013.

IMO, the underwater deterrent largely depends on the success of Arihant per se, rather than K-15 because the missile has been successfully tested many times over.


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PostPosted: 27 Dec 2012 11:48 
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so its 40km (120,000ft) not 20km (60,000ft). a Mach7.5 object at 40km is vastly more difficult to target than one at 20km..almost any big SAM of S300+ size can manage 20km.


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PostPosted: 27 Dec 2012 12:10 
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From the above article ^^

Quote:
the test “formed part of the pre-production clearance.”


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PostPosted: 27 Dec 2012 14:40 
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Singha wrote:
so its 40km (120,000ft) not 20km (60,000ft). a Mach7.5 object at 40km is vastly more difficult to target than one at 20km..almost any big SAM of S300+ size can manage 20km.


I don't think the S-300 could be able to manage the Shaurya since this thing flies in a straight path at speeds of mach 7.5. It also has terminal maneuvers up its sleeve. Being a hybrid missile it can be programmed to fly even at lower altitudes but then it would cover a lower range.


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PostPosted: 27 Dec 2012 19:52 
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Quote:
It will carry 12 K-15 SLBMs that can be launched even under ice caps. www.naval-technology.com/projects/arihant-class/

can someone go behind this tech or breaking ice caps, and then launching?


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PostPosted: 28 Dec 2012 03:52 
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SSridhar wrote:
IMO, the underwater deterrent largely depends on the success of Arihant per se, rather than K-15 because the missile has been successfully tested many times over.
The Key item now is Arihant and her Siblings coming of age quickly. K15 and k4 would be ready way before that... it is more akin to our Mig29Ks without Vik... or can i say Astra without Tejas :wink:


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PostPosted: 28 Dec 2012 08:25 
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Submarine launched ballistic missile ready for production
http://www.thehindubusinessline.com/ind ... nd-economy
Quote:
HYDERABAD, DEC. 27:
India’s submarine-launched ballistic missile (SLBM) is ready for production. Its pre-production test flight on Wednesday from a pontoon off the coast of Visakhapatnam was successful.

The missile is ready for integration with the country’s nuclear submarine ‘INS Arihant’. The capability puts India among the elite club of nations possessing such weapons. These include the US, Russia, France, UK, Israel and China.

The underwater-launched ballistic missile was tested for the minimum range as per the requirement of the user. It achieved all its objectives, said Avinash Chander, Chief Controller R&D (Missiles & Strategic Systems).

The missile system for the nuclear-powered Arihant platform will give the country the complete cycle of possessing options to deploy nuclear weapons from air, land and under sea. This is the tenth flight test of the missile.

The missile has a maximum range of 700 km , according to defence experts.


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PostPosted: 28 Dec 2012 08:56 
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Accuracy of GLONASS in 2020 will be increased to 0.6 m

Quote:
Roscosmos suggests 2020 to enter the location accuracy for the GLONASS system in less than 10 centimeters, the head office, Vladimir Popovkin said at a government meeting, which addresses the space program until 2020.

"Today, the measurement accuracy of 2,8 meters by 2015 we go to 1.4 meters by 2020, 0.6 meters," - he said.

In this case, Popovkin said that "in view of the amendments, which are now implemented, in fact it will be less than 10 cm accuracy."


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PostPosted: 28 Dec 2012 20:16 
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Austin wrote:
Will we get this level of accuracy or a degraded 10M accuracy like GPS?


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PostPosted: 28 Dec 2012 22:29 
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The military grade but by that time IRNSS will already be in service.


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PostPosted: 29 Dec 2012 01:07 
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Bheeshma wrote:
The military grade but by that time IRNSS will already be in service.

IRNSS and Gagan should go a long way in accurate Navigation and (Global) Positioning.


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PostPosted: 29 Dec 2012 03:28 
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What was the GPS technology or device that India developed earlier this year, and what is its significance? Can someone please restate the achievement. Thanks!


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PostPosted: 29 Dec 2012 04:52 
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Varoon Shekhar wrote:
What was the GPS technology or device that India developed earlier this year, and what is its significance? Can someone please restate the achievement. Thanks!

In September 2012 it was announced that Accord software have developed a very low power electronic module called G3OM weighing 17 gm that could receive GPS, GLONASS and GAGAN signals. Broadsword: Satellite navigation breakthrough for aircraft and weapons.

This module can be combined with an inertial navigation system (INS), probably a ring laser gyro INS [RINS], as shown in the figure below obtained from a paper published in Coordinates magazine titled INS-GPS-GLONASS navigation fusion scheme for high dynamics guided projectiles by two Research Center Imarat scientists, G, Satheesh Reddy and Manjit Kumar.

Image

The paper above was published in August 2012 and support for GAGAN is shown as "(in Future)". The very next month the G3OM was announced as including support for GAGAN.

As stated in the paper in the form of 2 examples which leveraged INS, GPS and GLONASS but not GAGAN:
Quote:
As analyzed, where the INS is aided by single (GPS/GLO) constellation, the position error of Hybrid Navigation is driven down to less than 15m (1-σ) after about 50 sec, whereas the position error of combined aided GPS-GLONASS constellations is better than 7m (1-σ) after 50 sec as shown in figure 5. It has been observed that for weak GPS constellation the concurrent healthy GLONASS measurements provides better accuracy, high redundancy and more reliable combined GG solution. This also results in improved GDOP and Hybrid Navigation Performance. Further the Real Time Simulation studies are carried to analyze the performance of this scheme for High Velocity Projectile applications.

The scheme has been simulated for medium range guided Projectile and post simulation results were analyzed as shown in fig 7 & fig 8. The Projectile travelled with forward velocity 800m/s and beyond covers the short (< 100 Km) to medium down range (< 250 Km) in the flight time of 371 sec. As it’s analyzed, the Vehicle in the entire Thrust Phase and beyond is guided through either by GPS or GG aided Navigation by correcting all the propagated Navigation errors in all phases, which resulted in achieving the desired accuracy for Hybrid Navigation (< 25 m, 1-σ) of the Vehicle as shown in fig 8.

Apart from military uses, BusinessLine notes:
Quote:
The modular receiver is useful in aircrafts, helicopters, mobile vehicles, boats, ships and survey applications. The component fabricated by the Bangalore-based, Accord Software & Systems company also has civilian use and can be produced in large numbers at a low cost.

G. Satheesh Reddy was promoted to Outstanding Scientist in September 2011. Quoting Tarmak007
Quote:
His technological achievements, eminence and innovative applications of engineering gave him the rare distinction to pick up this rare honor at the age of 48 years. He was earlier conferred with DRDO Scientist of the Year Award in 2010 and also the Fellowship of Indian National Academy of Engineering Fellowship (FNAE).

He then went on to win the Systems Society of India VIKRAM Award "in recognition of his outstanding leadership towards realizing Systems of National importance", also quoting Tarmak007.


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PostPosted: 29 Dec 2012 09:36 
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Shrinivasan wrote:
Austin wrote:
Will we get this level of accuracy or a degraded 10M accuracy like GPS?

Well, the recent agreement and the proposed 'joint operation' of Glonass probably mean that we will get this accuracy through the PY code of Glonass.


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PostPosted: 29 Dec 2012 09:49 
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From this link,
Quote:
IIT-Madras director Bhaskar Ramamurthi said the IIT, which had a long history of collaboration with the DRDO, including the recently-trialled submarine-launched K-15 missile, envisaged the joint innovation centre as a tripartite partnership that would also involve regional industry.


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PostPosted: 29 Dec 2012 12:52 
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Yes, they have long history of collaboration, many notable and successful products/projects I think. Not a surprise to see such a center started there.


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PostPosted: 29 Dec 2012 13:01 
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Singha wrote:
so its 40km (120,000ft) not 20km (60,000ft). a Mach7.5 object at 40km is vastly more difficult to target than one at 20km..almost any big SAM of S300+ size can manage 20km.


40 Km for land variant; 20km for Naval variant, much like Cruise missile. Not without reason it is termed as 'powered as ballistic and flies like Cruise missile'.

This K-15 test is a naval variant, so flown at 20 km altd.


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PostPosted: 29 Dec 2012 13:49 
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I wondering what would be the range of Shourya if it is used as Ballistic missile rather than cruise missile. The range should increase as it will face less/nil air resistance at higher altitude but con would be that it would not be able to glide. So will the net range increase or decrease?

Further can it be used as an AShM? How low the missile can go below 20km in its cruise phase?


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PostPosted: 29 Dec 2012 14:10 
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vic wrote:
I wondering what would be the range of Shourya if it is used as Ballistic missile rather than cruise missile. The range should increase as it will face less/nil air resistance at higher altitude but con would be that it would not be able to glide. So will the net range increase or decrease?
If you take the 're-entry' speed, it is same as that of ballistic missile that can cover similar range.

Quote:
Further can it be used as an AShM? How low the missile can go below 20km in its cruise phase?
The info you are seeking is not in public domain.


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PostPosted: 04 Jan 2013 21:24 
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Most probably Nirbhay is ready for some testing. There is a tender for transport of equipment from ADE to ITR and back using 8 trucks with flat beds of minimum dimension of the 7 feet by 18 feet.


Last edited by indranilroy on 04 Jan 2013 23:34, edited 1 time in total.

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PostPosted: 04 Jan 2013 21:33 
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^^^ Links please.


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PostPosted: 04 Jan 2013 22:38 
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*** Deleted ***


Last edited by SSridhar on 05 Jan 2013 09:21, edited 1 time in total.
Let us be careful in what we post


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PostPosted: 04 Jan 2013 23:23 
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Sagar G wrote:
^^^ Links please.

Hiring Civil Truck of 7ft width & 18ft length from ADE to ITR


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PostPosted: 04 Jan 2013 23:37 
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Aditya, I request you to remove your post. I have removed parts of posts as well. I am not sure if we can discuss this in the public domain. The tender is in public domain but has a disclaimer in red right in front saying."The information given in this document is not to be published or communicated either directly or indirectly, to the press or to any person not holding an official position in the service of the GOVERNMENT OF INDIA."

I will talk to the mods if we can discuss this here, and subsequently post the information if they think it's fine.


Last edited by SSridhar on 05 Jan 2013 09:20, edited 1 time in total.
Done.


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PostPosted: 04 Jan 2013 23:54 
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No need to worry about Aditya G's post and the trailer tender is available here

http://drdo.gov.in/drdo/tenders/liveTenders.jsp


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