LCA is Named Tejas!!!

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Re: LCA is Named Tejas!!!

Post by Guest »

I think it is time for some new additions to the LCA photo gallery.
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Re: LCA is Named Tejas!!!

Post by Sumeet »

Tejas: A reality check

Tejas: A reality check
Vishal Thapar
New Delhi, May 4

For those ecstatic at the projection of the Tejas' 'Made in India' tag as a symbol of indigenous capability, a sobering thought. It's engine is American, its avionics a combination of French, Israeli and Swedish components, and its carbon composite wings Italian.

Given that the three basic components of an aircraft are the engine, airframe and avionics, 'swadeshi' pride gets a dose of reality.

But the LCA achievement is nonetheless seminal because it marks the transition of the Indian military aviation industry from license manufacture regime for MiGs and Jaguars — the lowest end of the technological capability spectrum — to design and development of a state-of-the-art supersonic jet.

"This marks an incremental transition from a complete dependence scenario to higher levels of capability," agrees defence analyst Kapil Kak. "And while key components are foreign, their integration, at the highest end of technology, is an achievement," he stresses.

Except perhaps for the US, Russia and France, no other country has the capability to build a state-of-the-art aircraft entirely on is own. The 'Made in India' tag will bear credibility only when the LCA flies on the indigenous Kaveri engine, now under development.

Nevertheless, the leap, it's reasoned, is worth it, as it addresses India's 25-year indigenous fighter technology gap. The last fighter designed and developed by India was the HF-24 or the Marut, widely regarded as a technological success.

But after the good news, some more sobering thoughts. The LCA will not be available to the IAF, at the very least, till 2012. The initial deadline was 1995.

Repeated deadline slippages had made LCA something of a joke. The acronym was twisted as 'Last Chance for Arunachalam' and 'Last Chance for Abdul Kalam' (former DRDO chiefs).

If there are no further slippages, IAF expects commencement of induction in 2012, and a five-squadron strength by 2015-2017. So, Tejas got its name on Sunday, but will take another 14 years to come of age.
--------------------------------------------------

" For those ecstatic at the projection of the Tejas' 'Made in India' tag as a symbol of indigenous capability, a sobering thought. It's engine is American, its avionics a combination of French, Israeli and Swedish components, and its carbon composite wings Italian. "

Apart from American engine is the rest truth about LCA. I heard italian and british company were just acting as consultants. He sounds like italy supplied us the wing structure just as america supplied us with engine. And by the way which french & swedish components we have in LCA ?

"The LCA will not be available to the IAF, at the very least, till 2012 "

Is this true or the this is just made up by reporter ?
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Re: LCA is Named Tejas!!!

Post by Guest »

Sumeet please read pg.2 of this thread. :D
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Re: LCA is Named Tejas!!!

Post by Sumeet »

thanks rahul. when i went thru the thread first time before posting my article, i guess i skipped nitins reply.

Thapar ke galo par do thappar marne chahiye.
Self deluded person deluding other indians.
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Re: LCA is Named Tejas!!!

Post by Guest »

A never before seen pic of the LCA:

http://nenesite.ifrance.com/nenesite/AVIONS/AUTRESMILITAIRES/LCA-2.jpg
Self deluded person deluding other indians.
Summet, couldn't have said it any better. :)
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Re: LCA is Named Tejas!!!

Post by AshishN »

rahul r
nice pic. The cuvature of the body leading up to the exhaust ..I didn't notice it before..
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Re: LCA is Named Tejas!!!

Post by srai »

Heee haa!!!

I have to say I was the closest :D

On my list [ link ], one of the names #6 (out of 25 names) was teja vyaadhaH!, which means

* teja = prowess (I was looking for the word "agile" and this word came up!)
* vyaadhaH = hunter

I was one word away from the actual! Here's the list as on the Online Sanskrit Dictionary :
tejaH = prowess
tejas.h = brilliance
tejasa = radiant energy, majesty
tejasvin.h = one who has tej (brilliance)
tejasvinaaM = of the powerful
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Re: LCA is Named Tejas!!!

Post by shiv »

Originally posted by Rajesh_MR:
there are people in B'lore who can be at the right place at the right time.

I wish I could have been in a right-er place at a right-er time. At the place where I was parked/stuck I saw 5 and later a sixt Dhruv take off and that warned me that the Tejas flight was imminent. Once that was done the Dhruv's flew past in formation (didn't video that - ther are plenty of Dhruv clips available - to me at least :D
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Re: LCA is Named Tejas!!!

Post by Vasu »

pretty small picture, but we get the idea. thats the PM and the ACM with the LCA....scratch that, Tejas team :D

<img src="http://www.indianexpress.com/ieimages/s ... ge0505.jpg" alt="" />
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Re: LCA is Named Tejas!!!

Post by srai »

Originally posted by Gerard:
Dunno if I like the name chosen. I wish it had more "punch" to it, like a sword or a predatory bird. Think of the F-102 Delta Dagger, the F-16 Fighting Falcon.

I wonder if "LCA" will stick rather than its official name. Nobody calls the UH-1 chopper the "Iroquois", it is and will remain the "Huey"
I read it somewhere (can't remember exactly ... maybe it was the Discovery Channel) but apparently the F-16 pilots don't like the official name "Fighting Falcon" ... they call it the "Viper".
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Re: LCA is Named Tejas!!!

Post by shiv »

Originally posted by rahul r:
A never before seen pic of the LCA:

http://nenesite.ifrance.com/nenesite/AVIONS/AUTRESMILITAIRES/LCA-2.jpg

This is an old picture of the LCA fly-by at Aero India 2001. Thisone appeared either in the Dorku or Times of Islamabad can't recall which.
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Re: LCA is Named Tejas!!!

Post by Sidd »

Though not very clear I think the serial number on the tail says KH 2002....
Originally posted by shiv:
Originally posted by rahul r:
A never before seen pic of the LCA:

http://nenesite.ifrance.com/nenesite/AVIONS/AUTRESMILITAIRES/LCA-2.jpg

This is an old picture of the LCA fly-by at Aero India 2001. Thisone appeared either in the Dorku or Times of Islamabad can't recall which.
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Re: LCA is Named Tejas!!!

Post by S_RAY »

Originally posted by Siddhartha_Shukla:
Though not very clear I think the serial number on the tail says KH 2002....
Nope! Its a TD1 KH2001 (you can tell by the distinguishing tri-color design on the engine intake).

I noticed what seems to be KH2002 on the tail as well , but if you look really close it looks like a KH2001. Optical Illusion?
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Re: LCA is Named Tejas!!!

Post by Vick »

A bigger version of the pic Vasu posted

<img src="http://www.blonnet.com/images/2003050501670301.jpg" alt="" />
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Re: LCA is Named Tejas!!!

Post by MahaPazi »

I was just wondering are the avionics,specially those pertaining to the fly-by-wire system, are EMP hardened? This is crucial for a relaxed stability aircraft in case of a nuclear senario or thinking of the future: some sort of EMP generating device (KALI was it?).
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Re: LCA is Named Tejas!!!

Post by JTull »

Originally posted by Vick:
A bigger version of the pic Vasu posted

<img src="http://www.blonnet.com/images/2003050501670301.jpg" alt="" />
Could this be first picture of PV1?
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Re: LCA is Named Tejas!!!

Post by Vick »

Originally posted by bansal:
Could this be first picture of PV1?
I wish! But there are enough clues available to be able to discern that is the TD-1.

The two biggest external differences I would expect b/w the TDs and the PVs are the paint schemes and the size of the elevon actuator housings.

The PVs, I think, will be the standard low-viz grey while the elevon actuator housings on the PVs should be much smaller because the actuators themselves should be much smaller... at least I hope so.
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Re: LCA is Named Tejas!!!

Post by shiv »

Originally posted by Siddhartha_Shukla:
Though not very clear I think the serial number on the tail says KH 2002....
Well I must admit that this new photo is definitely NOT the photo I have. I just compared the two - i.e. the photo linked above and the scanned newspaper photo I have. They are remarkably similar but have probably been taken from two different cameras milliseconds apart or in very similar circumstances. The shadows and the angle are almost identical but there are enough differences on critical examination to say that I was wrong in assuming that the photo linked above is not totally new. It may well be a new one because it is certainly not the one I assumed it was.
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Re: LCA is Named Tejas!!!

Post by Sidd »

Yeah you are right the serial number under the right wing which I missed the first time is much clearer ....Sorry for the digression back to the topic now.
Originally posted by S_RAY:
I noticed what seems to be KH2002 on the tail as well , but if you look really close it looYks like a KH2001. Optical Illusion?
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Re: LCA is Named Tejas!!!

Post by Cybaru »

Originally posted by shiv:
The BIG BIG difference is that the LCA is totally fly-by-wire.That is the movement of the pilot's hand on the control column goes into a computer, and the software powers and actuator motor and that powers the control surfaces. In the IJT there are conventional control rods that don't need any validation.

So for every extra degree of roll or yaw or pitch or turn the software and the response of the LCA is evaluated and then configured for the next set of flights. The particular fact that made me laugh with realization was that the LCA does only half rolls because the software is currently fixed to allow only that much. Unlike the IJT, the Tejas pilot can pull on the column as much as and for as long as he wants, but the software will only allow him to go so far and no further. Hence the seeming docility of the LCA in earlier flights. It's just that much more complex.
Brilliant, thanks for the summary.. Keep such nuggets coming.. So I presume AJT would be easy as well.
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Re: LCA is Named Tejas!!!

Post by Umrao »

If anybody has ever rented 'Uhaul Trucks' will also notice that you cant go beyon 60/65 MPH. It is (well) governed same with FBW till you have your parameters and the data points are with you. I think they will go with very small incremental values and therefore that much more time for us to have all data.

I Think there will multiple redundant data recorders on each flight dedicated to each of the important parameters that we want to evaluate against test bench FBW equipment and the real ones flying.

Can there be a VHF link between the A/c in flight and a test bench model also to undergo the same movements on the controll surfaces? (in real time)

Something like master slave manipulators?
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Re: LCA is Named Tejas!!!

Post by ehsmang »

How is a plane certified for induction?

I mean is there a pre defined collection of test cases which have to be successfully completed by the aircraft.
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Re: LCA is Named Tejas!!!

Post by JCage »

Originally posted by ehsmang:
How is a plane certified for induction?

I mean is there a pre defined collection of test cases which have to be successfully completed by the aircraft.
When..
It meets every criteria of the IAF's ASR'-Air Staff Requirements
These include performance-speed,manoeuverability,payload,range and other equally hard criteria of reliability ,maintanability,durability.
All this will be evaluated over a test phase,followed by a limited induction phase.Once these are cleared,then the clearance would be given for "full" induction ie production too.
CEMILAC is one of the agencies involved for the certification bit in conjunction with DGAQA.Forgot the other one's name.
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Re: LCA is Named Tejas!!!

Post by Jayram »

UseandDeisgnflybywire
A great read (mathematical equations included) on fly by wire complexicity and the technology that is required to master this.
Indias aerospace industry has truly come a long way to master this technology. We should all be proud.
Jayram
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Re: LCA is Named Tejas!!!

Post by Umrao »

Originally posted by Jayram:
UseandDeisgnflybywire
A great read (mathematical equations included) on fly by wire complexicity and the technology that is required to master this.
Indias aerospace industry has truly come a long way to master this technology. We should all be proud.
Jayram
Thanks Jayram for that link.
Problem is I have to dust my 'Manickvachagam Pillai' Calculus along with Shanti Narayan, S Narayanan, Partial differential equations allover.
WHat a curl and divergence to get back there, its steep gradient too.
:)
In addition I am already unstable to bi stable with closed (BRF)loop with negative feed back from some eminent Drs here. :D
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Re: LCA is Named Tejas!!!

Post by Manne »

I agree 400% with Arun_S. I liked the name very much. It signals a great future for the bird and HAL/ADE/DRDO.

Many thanx to Imtiaz Ahmed for revealing Tejas to BRF.

Doc, great shoot - as usual. My colleagues freaked out over the clip.
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Re: LCA is Named Tejas!!!

Post by Ajay K »

Why does the Tejas require a brake/drag chute ? Grippen, F-16 do not have the same.
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Re: LCA is Named Tejas!!!

Post by srai »

Originally posted by Dipto:
I was just wondering are the avionics,specially those pertaining to the fly-by-wire system, are EMP hardened? This is crucial for a relaxed stability aircraft in case of a nuclear senario or thinking of the future: some sort of EMP generating device (KALI was it?).
This is something you'll have to read:
It mentions in the section "10.0 Future",
...
Photonic signal transmission using fibre optics offers increased reliability and immunity from EMI effects. As with all electical control systems, the transmission of electrical signals to control surface actuators is essential to the operation of the system. Any disruption to the electrical system could lead to catastrophic failure. The use of fly-by-light (FBL) systems ensures the aircraft is immune to EMI, lightning strikes and other interruptions to electrical signals as they nonconductors. Thus the FBL systems effectively isolate control signals from electrical interference from their source to the actuators.
...
I don't know of what level of EMI protection the LCA possess currently, but when FBL technology matures and that knowledge is aquired at ADA, one can assume it'll be incorporated.

KALI 5000 (Kilo-Ampere Linear Injector) could be used for testing EMI effects!

http://www.timesofindia.com/190899/19indi8.htm
http://www.dae.gov.in/ni/niapr03/Milest.htm
http://www.dae.gov.in/publ/persp/basicr.pdf
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Re: LCA is Named Tejas!!!

Post by ehsmang »

nitin

"It meets every criteria of the IAF's ASR'-Air Staff Requirements
These include performance-speed,manoeuverability,payload,range and other equally hard criteria of reliability ,maintanability,durability."

I wanted to know in the case of LCA are these requirements & criteria ( RC) documented and signed off. I understand that often these RC keep on changing and are a source of delays.

Do we have a fairly stable RC's for the LCA now?
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Re: LCA is Named Tejas!!!

Post by SSridhar »

Tamang
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Re: LCA is Named Tejas!!!

Post by Tamang »

India seeks global partners for military joint ventures (LEAD)

This is what Mr. Krishnaswamy said....

" The LCA should be inducted into the IAF in 2008 ," Krishnaswamy told reporters on the sidelines of the ceremony. It will be armed with the indigenous ASTRA medium range air-to-air missile , close combat missiles and an integral 23mm cannon.
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Re: LCA is Named Tejas!!!

Post by Murugan »

hey... the name Tejas is endorsed by Chakradhari Lord Krishna,

Refer to 10th Chapter of Shrimad Bhagvad Gita, 36th Shloka...

he says...

... TejasTejasvinamAhaM... I am the radiance of the Radiant (radiant person or thing ) for suitable translation, refer Imtiaz's Post

Yeh Tejas dushmano ko chakachaundh kar dega... and then they will Pi$$ in their pants...

Right Name TEJAS
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Re: LCA is Named Tejas!!!

Post by JCage »

Originally posted by ehsmang:
nitin

"It meets every criteria of the IAF's ASR'-Air Staff Requirements
These include performance-speed,manoeuverability,payload,range and other equally hard criteria of reliability ,maintanability,durability."

I wanted to know in the case of LCA are these requirements & criteria ( RC) documented and signed off. I understand that often these RC keep on changing and are a source of delays.

Do we have a fairly stable RC's for the LCA now?
These RC's or ASR's-whats in name anyway ;) were substantially revised earlier.This in turn prompted changes in the basic design and we had consequent time delays.However,the present ASR's are more or less fixed.The IAF has indicated that it will be happy with the LCA *if* it meets those ASR's ;once it does so,then we have success in entirety.
Yes,the ASR's are documented.

The ASR -for example even Army Staff Req. not AF- has been a constant source of friction for many other projects.The Arjun became a western type heavy tank from an upgunned Vijayanta,the Pinaka had to develop more "josh" and pinpoint accuracy at long range once revision got done,the INSAS LMG had to provide a high volume of fire while having battle rifle accuracy.....regrettably,these changes slowed the project till donkey's years or sometimes resulted in the successful end product being too expensive and radically different from what the present logistics were configured to handle(Arjun).

The way out is codevelopment from day 1 with the services being involved-like the WEESE and Navy tieup.This way the user gets to know the R&D effort and can put his word in from day 1 not just at the trials leading to time waste and expensive reengineering.
The Services are involving themselves more-so we have a slew of products which have been taken to full production,in recent days.
The IED jammer,Weapons Locating Radar,BFSR-SR(BFSR-MR is Israeli,the SR is Indian.additionally another SR was imported before the indian type kicked off),Sectel,a bunch of Freq Hopping Sets ...all this for the Army.
The RWR,Jammers,AVionics Modules(Radar,Mission computers and Display processors) for the Su30MKI,Jaguar.Mig27,HUD ,INCOM and IFF sets for upgrades-this the AF....
The Navy of course leads the pack!
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Re: LCA is Named Tejas!!!

Post by MN Kumar »

PV1 was supposed to be rolled out. Any news about it?
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Re: LCA is Named Tejas!!!

Post by Rudra »

C Manmohan Reddy writes a measured article in the
Hindu. I think good response to the HT scum.

An excellent article on LCA (Tejas) and economics
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Re: LCA is Named Tejas!!!

Post by Umrao »

Folks >> (specially Arun guru and /or Nitin Garu /Esq :) )

Can the TD-1/TD-2 carry telemetry equipment under its belly in a pod so as to transmitt real time data on various actuators so that the same could be directly fed to a wind tunnel model so as to observe all (data points) parameters are idnetical in the actual aircraft and in the WT model.

Has this kind of thing ever been tried by any one?

( I am assuming this is possible as we do have telemetry data coming from ISRO/DRDO rockets in real time mode into control stations)

Thanks in advance.
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Re: LCA is Named Tejas!!!

Post by Sarma »

Rudra:

Thanks for posting the link to that very sensible article by Rammohan Rao. Hindu, inspite of its leftist tilt, has always had very good and informative defence articles. An interesting nugget in that article is the information that old F-16s (which means Puki ones ) use analog FBW systems, compared to the digital FBWs in all modern aircraft. :D
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Re: LCA is Named Tejas!!!

Post by Avid »

Originally posted by Dipto:
I was just wondering are the avionics,specially those pertaining to the fly-by-wire system, are EMP hardened? This is crucial for a relaxed stability aircraft in case of a nuclear senario or thinking of the future: some sort of EMP generating device (KALI was it?).
<font size="2" face="Verdana, Helvetica, sans-serif">
From an earlier post in the previous thread
here's some more details --

http://www.rense.com/politics4/beamweapon.htm
----------------
Delhi Is Finalizing Work On 'Soft Kill' Weapon System. Jane's Defence Weekly. Bedi, Rahul, Sep 01, 1999, p 13

Indian atomic scientists claim to be in the final stages of assembling a powerful electron accelerating machine, the country's first 'star wars' weapon whose beams could cripple enemy missiles and aircraft. P H Ron, head of the accelerator and pulse power division at the Bhaba Atomic Research Center in Bombay, said the KALI 5000 (Kilo-Ampere Linear Injector) will be ready for testing by year-end. Bursts of microwaves for KALI packed with gigawatts of power could "soft kill" incoming enemy aircraft and missiles by crippling their electronics systems and computer chips.

Descriptors, Keywords: India Electron Accelerator Pulse Power Weapon KALI 5000 Kilo Ampere Linear Injector

--------------

Title: India to test beam weapon by year-end
Author: PTI
Publication: The Times of India
Date: Aug 18, 1999
URL: http://www.timesofindia.com/190899/19indi8.htm

MUMBAI: The Bhabha Atomic Research Centre (BARC) here is in the final
stages of assembling a powerful electron accelerating machine named
``Kali-5000'' which, its scientists say, can potentially be used as a
beam weapon.

Bursts of microwaves packed with gigawatts of power (one gigawatt is
1,000 million watts) produced by this machine, when aimed at enemy
missiles and aircraft will cripple their electronics systems and
computer chips and bring them down.

According to scientists, ``soft killing'' by high power microwaves has
advantages over the so-called laser weapon which destroys by drilling
holes through metal.

Kali-5000 will be ready for testing by the end of this year, according
to P H Ron, head of the accelerator and pulse power division at BARC and
chief designer of India's first star war weapon.

However, in the present form, India's beam weapon is too bulky - it
weighs 26 tonnes - including tanks containing 12,000 litres of oil. Mr
Ron said some ``compacting'' was possible.

He said the Kali (Kilo-ampere linear injector) machine was developed for
industrial applications and that the defence use was a recent spin off.
He, however, declined to elaborate.

Describing it as a machine ``bordering basic research'', Atomic Energy
Commission chairman Rajagopalan Chidambaram admitted in an interview
that it has military potential. ``There are some technologies we have to
be in touch with because they may become useful (later),'' he said.

The development of the Kali machine was mooted in 1985 by Mr
Chidambaram, then director of BARC, but work earnestly began in 1989.

Mr Ron said the machine essentially generated pulses of highly energetic
electrons. Other components in the machine down the line converted the
electrons into flash X-rays (for ultra high-speed photography) or
microwaves. The electron beam itself can be used for welding.

The Defence Ballistics Research Institute in Chandigarh is already using
an X-ray version of the Kali to study speed of projectiles.


Another defence institute in Bangalore is using a microwave- producing
version of the Kali, which the scientists use for testing the
vulnerability of the electronic systems going into the light combat
aircraft
under development and designing electrostatic shields to
protect them from microwave attack by the enemy.

According to BARC scientists, the Kali machine has for the first time
provided India a way to ``harden'' the electronic systems used in
satellites and missiles against the deadly electromagnetic impulses
(EMI) generated by nuclear weapons.


The EMI wrecks havoc by creating intense electric field of several
thousand volts per centimetre. The electronic components currently used
in missiles can withstand fields of just 300 volts per centimetre.

While the Kali systems built so far are single shot pulse power systems
(they produce one burst of microwaves and the next burst comes much
later), the Kali-5000 is a rapid fire device, and hence its potential as
a beam weapon.

According to reports published by BARC, the machine will shoot several
thousand bursts of microwaves, each burst lasting for just 60 billionths
of a second and packed with a power of about four gigawatts.
:eek: :eek:

The high-power microwave pulses travel in a straight line and do not
dissipate their energy if the frequency falls between three and 10
gigahertz.

According to BARC scientists, a microwave power of 150 megawatts has
already been demonstrated in earlier versions of Kali.(PTI)

-------

Latest NEWS of KALI-5000 development
http://www.dae.gov.in/ni/niapr03/Milest.htm

BARC pursued development of two accelerators namely KALI 5000 and Linear Induction Accelerator (LIA). KALI 5000 was undergoing commissioning trials. LIA sub systems are also in the advanced stage of completion. These accelerators will be employed for producing Flash X rays & high power microwaves, which have immense applications in the industry, nuclear power sector and the strategic areas.

From http://www.dae.gov.in/publ/persp/basicr.pdf
Plasma related technology has many industrial applications. BARC has
completed a plasma based aerosol generator and achieved plasma coatings of
alumina on carbon steel moulds. The KALI-5000 pulse power system has reached
an advanced stage of assembly at Trombay. The pulsed electron beam produced
from the facility will be used for applications in high power microwave generation,
pulsed intense neutron source etc..
</font>
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Re: LCA is Named Tejas!!!

Post by JTull »

Originally posted by nitin:
The ASR -for example even Army Staff Req. not AF- has been a constant source of friction for many other projects.The Arjun became a western type heavy tank from an upgunned Vijayanta,the Pinaka had to develop more "josh" and pinpoint accuracy at long range once revision got done,the INSAS LMG had to provide a high volume of fire while having battle rifle accuracy.....regrettably,these changes slowed the project till donkey's years or sometimes resulted in the successful end product being too expensive and radically different from what the present logistics were configured to handle(Arjun).
Nitin, I doubt if you was your intention, but this list clearly shows IA's tantrums and influence in Army HQ of retired generals becoming arms dealers. On the other hand IAF and IN have shown exemplary patience with their budgets or development projects reflected in what they'll get. Su-30MKI, LCA, Trishuls, Brahmos, Shivaliks, ATV etc.
Div
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Re: LCA is Named Tejas!!!

Post by Div »

Originally posted by Rudra Singha:
C Manmohan Reddy writes a measured article in the
Hindu. I think good response to the HT scum.

An excellent article on LCA (Tejas) and economics
Really enjoyed it...I also agree with his ending comments about M2Ks.
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