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Subject: Leaked Specs for Indias AXO ABM system--
Herc the Merc    11/27/2006 12:16:21 PM
Labelled only as AXO (Atmospheric Intercept System), the supersonic missile underwent its baptism when it successfully intercepted a surface-to-surface Prithvi target missile at an altitude of 40 to 50 km over the seas off the interim test range site in Chandipur in Orissa. "It is a new missile and not part of country's Integrated Guided Missile programme," top DRDO officials said on the condition of anonymity. "We have been working on this anti-missile system for years," scientists said and claimed that missile had its own mobile launcher, secure data link for interception, independent tracking and homing capability and its own radar. "The missile has response time of 30 seconds and once it detects a target it can be launched in 50 seconds," the scientists said. While, affirming that India would still be observing the US Patriot-III anti missile shield, which Washington is developing, the scientists said that the Indian missiles was "in the class of its own". DRDO did not reveal the contours of the new system developed. "It is completely an indigenous missile," DRDO officials said when asked if any foreign help had been sought in it's development. "The missile has high manoeuvrability, terminal homing with radar seekers and can operate independent of ground radar help," they said adding the missile could be co-related to ground and air based radars. The missiles which are 10 to 12 metres long have divert thrusters that can generate high lateral acceleration and can undertake critical mission of air defence too, officials said. DRDO has been working on making the Trishul missiles into an anti-missile system, but the system had failed many critical tests. DRDO officials did not say whether some of the systems of the Trishul missile had been incorporated into the new yet experimental interceptor missile, but added "the new system has no commonality with the Akash surface-to-air missiles".
 
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Herc the Merc    From an Indian blogger-apparently the interception was shown on TV   11/27/2006 2:23:36 PM
Just saw the intercept video.It was a boost phase /commencement of cruise phase intercept .Three seperate explossions could be clearly seen which happened while the prthvi target missile was still climbing on vertical mode and not very high altitude since could be seen from the ground quite clearly.The interceptor msile came in a flater trajectory which crossed the target missile almost at right angles and its contrail could be sen clearly even after the target prthvi was broken up in three distinct sections . First may be actual point looks like close two the rocket motor and one obviously diintegration of the fuel tank and third one the top one may be discharge of the kill vehicle smoke trail from the interceptor booster All the debris from target missile or prithvi fell almost vertically as seen in number of smaller smoke trails comming down at the moment of intercept .A classic employemnt of high kinetic energy particles hitting over the entire missile body making it disintegrate .

The flight profile of the interceptor missile and the the intercept altitude and phase of intercept all clearly points and confirms one thing this is definitely one of the most advanced anti missile missile in the world today.If you go by existing known misiles it can be only arrow 2 and if it is fully indian then oh boy -i salute the drdo team in all humility
 
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Herc the Merc    Some possible components   11/27/2006 2:39:49 PM

clip.gif (1016 bytes)http://www.drdo.com/pub/techfocus/oct2001/clip.gif" width=21>Pyrogen Ignition System

The pyrogen ignition system is an ideal choice to ignite very large solid boosters. It is basically a Pyrogen Ignition Systemhttp://www.drdo.com/pub/techfocus/oct2001/images/pyrogen.jpg" width=220 align=right border=1>small rocket motor used to ignite a larger rocket motor. This system is essentially an efficient and reliable energy release system which provides the heat flux to the main motor propellant and the pressure in the motor chamber necessary to ignite the propellant and produce sustained combustion within the required time limit. The main motor ignition through this pyrogen igniter is a transient phenomenon wherein a series of events take place in smallest possible time in a controlled and reproducible manner. The ignition train consists of an initiator, pyrotechnic boost charge, pyrogen igniter propellant and the main motor propellant. This system has been successfully tested.

clip.gif (1016 bytes)http://www.drdo.com/pub/techfocus/oct2001/clip.gif" width=21>Large Size Solid Booster

DRDO has developed a state-of-the-art case-bonded HTPB-based composite propellantLarge Size Solid Boosterhttp://www.drdo.com/pub/techfocus/oct2001/images/booster.jpg" width=193 align=right border=1> with low burn rate of 4.3 mm/s at 50 KSC. This solid propellant rocket motor (dia 740/620 mm, length 6 m), made of 250 grade maraging steel, consists of a composite nozzle with metallic backup and lined with carbon phenolic liners. The motor is capable of generating 16 ton thrust for 38 s duration. Pyrogen igniter developed by DRDO has been successfully used for the first time for this motor.

 
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Herald1234    Yawn.................   11/27/2006 6:40:20 PM
 
[quoting the article]

Balasore/Bhubaneswar, Nov 26 (IANS) India Sunday postponed for a day the test firing of two home grown Prithvi-II missiles from a defence base in Orissa as scientists reportedly wanted to do some additional checks, defence sources said.

The missiles were scheduled to be test fired against each other under the Prithvi Air Defence Exercise (PADE), being undertaken for the first time to validate its operational effectiveness.

'We wanted to do some additional technical checks,' Integrated Test Range (ITR) director A.K. Checker told IANS over phone in Bhubaneswar. However, he refused to divulge details.

As a part of the exercise one missile is to be fired from the shore-based ITR at Chandipur-on-sea and the other from Inner Wheeler Island, both located 150 km from state capital Bhubaneswar.

'While the missile from the ITR would be the attacker, the missile from Wheeler Island will act as the defender and would be fired five seconds later,' the sources said.

The Prithvi is one of the five missiles being developed under the Integrated Guided Missile Development Programme of the Defence Research and Development Organisation (DRDO).

First tested in 1988, Prithvi-I has a range of 150 km and can carry conventional or low-yield nuclear warheads for use against troops or armoured formations. Its two variants, the Prithvi-II and Prithvi-III, have a range of 250 km and 350 km respectively.

Prithvi-II was first tested in January 1996. It flew 250 km and is said to have accurately landed at a pre-determined point. The Indian Army has already inducted Prithvi I and II.

Prithvi-III was successfully test fired for the first time in October 2004. Prithvi-II was again test fired Nov 19.

The air-defence exercise will be followed by a three-day national conference on range technology to be held Nov 28-30 at the ITR. To be inaugurated by President A.P.J. Abdul Kalam, the conference will be attended by 15 renowned defence scientists from the US, Britain, France, Germany and Denmark.

© 2006 Indo-Asian News Service
 
The Prithvi in question is a tactical SSM of about 300-350 kilometers publicly reported range.
 
Another news story covering the exercise can be found here;
 
 
"http://www.thepeninsulaqatar.com/Display_news.asp?section=World_News&subsection=India&month=November2006&file=World_News2006112592336.xml"
 
Once again the near merge of two SSMs is not a demonstration of an ABM HTK capability. If two bullets pass within three centimeters of one another after two teams of marksmen have aimed their respective benchrested guns to achieve the coincidence, does that mean that a marksman can hit a bullet on the fly?  No.
 
Finally............ here is the missile described on its TEL. 
http://www.acig.org/artman/uploads/prithvi.jpg" width=1024 border=0>
 
Overeager postin
 
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Herc the Merc       12/2/2006 3:50:48 PM
>>
 
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Herald1234    Sarcasm, but not at France.   12/2/2006 8:16:15 PM
 
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Herc the Merc    Herald   12/2/2006 8:59:40 PM
I do not understand- it was a huge success for a change for the Indian defense program literred with failures. What ever
u say its no small task to intercept another missile. Barring the liquid fuel first stage this is quite a feat--even acknowledged by Jane's that this remarkable.
 
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Herald1234    General comment. Credibility zero means what it means.   12/2/2006 9:08:34 PM
It does not refer to the missile test.
 
The news reports hyper-inflate the event. Excitement over a simple paired ballistic missiles merge test, routinely done since the 1950s is a yawner.
 
Herald
 
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Herc the Merc       12/2/2006 9:12:20 PM
India developing new missiles Towards destroying hostile missiles

Sandeep Dikshit

`India developing complete suite of air defence missiles'


  • Missiles to destroy incoming missiles closer to earth's surface on the cards
  • First test will take place in first half of 2007, says DRDO

    NEW DELHI: "India is developing a complete suite of air defence missiles to destroy all types of hostile missiles," a top Defence Research & Development Organisation (DRDO) scientist said here on Saturday. After successfully conducting a test aimed at intercepting intermediate range ballistic missiles (IRBM) in the exosphere (uppermost layer of atmosphere) last month, India is now working on missiles capable of destroying incoming missiles closer to the earth's surface.

    The first test would take place in the first half of 2007. DRDO would then undertake development of missiles with both capabilities.

    "The entire project is likely to take three years to complete," said V. K. Saraswat, Chief Controller of DRDO's Missiles and Strategic Systems Division. The shorter-range interceptor missile would have double the range of the American Patriot missiles, he added.

    Dwelling on interception by the liquid-fuelled Prithvi missile, Dr. Saraswat said the decision to destroy a missile at a distance of 50 km was undertaken in view of the likely threat perception from IRBMs. Defence scientists were looking at a pack of six missiles to decisively intercept the enemy missile with a kill probability of 99 per cent. They felt two missile batteries would be enough to defend a large city like Delhi or Chennai. The project for developing missile interception capability began three years ago. After several simulations and changes in guidance and control software, the target missile was launched on November 19 this year and intercepted electronically.

    This gave DRDO the confidence to conduct a live test a week later. However, the planned launch could not take place because the software to check the health of the subsystems diagnosed the seeker as faulty. "We therefore decided to delay by a day to conduct reconfirmation tests,'' said Dr. Saraswat.

    Except for the long-range tracking radar, all other elements were "totally home-grown'' by 35 private and public sector companies. Three million lines of code were written in India for the Mission Control Centre, the hub of software and hardware systems.

    A shadow centre was set up to take over if the original centre got destroyed or inactivated.

    Transmission links to the interceptor missile were based on jam-proof CDMA technology and multiple data transmission links were set up so that if one was jammed the others could function. In this trial, various data transmission and control centres were spread over a distance of 1,000 km. The DRDO modified the Israeli Greenpine radar to enable it detect IRBM missiles with a velocity of 5 km per second from a distance of 600 km.

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    Herald1234    General commentHistory of ABM defense   12/2/2006 9:22:20 PM
     
    Provided as a public service so that the ignorant can learn the basics of the subject, and distinguish propaganda, from hyperbole, and from pure unadulterated baloney.
     
    Herald  
     
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