HAL Tejas | Updates, News & Discussions

[pandamonkey]

in the short terms the project might suck, but in the long term it will help homegrown indian avation by tonnns

 

[Arjun MBT]

well i guess even a failed kaveri is better what we in pakistan have. we have never even attempted to make one. You learn alot more from failed dreams then successful ones.

It dosent matter, One day Pakistan would also Concentrate On R&D... And Well lets leave this kaveri till the next month, Kaveri will not be Scrapped, We have Invested a lot in it, so We will get it fixed...

 

[pandamonkey]

well if they get all the problems sorted out. it would be great for indian avation. Would their be other planes that would be able to use the kaveri??? if so it would also make a great export.

 

[Arjun MBT]

well if they get all the problems sorted out. it would be great for indian avation. Would their be other planes that would be able to use the kaveri??? if so it would also make a great export.

Well, Developing MCA in which Kaveri would be Used, and why not? If Kaveri proves itself It will be open to the world

 

[bumbgola]

why is it being tested in russia???

http://www.business-standard.com/in...ngine-finally-poised-for-first-flight/369298/

a fully built Kaveri engine will be transported to a testing facility outside Moscow called the Gromov Flight Research Institute. Here, a giant IL-76 aircraft will have one of its four engines replaced with a Kaveri. Russian and GTRE experts will then evaluate the Kaveri’s performance while the IL-76 flies.

Before the actual flight tests, Russian experts at Moscow’s Central Institute of Aviation Motors will run ground checks on the Kaveri’s performance, in conditions that simulate altitudes up to 15 kilometers (49,200 feet).

Business Standard visited the Kaveri ground test bed at GTRE, Bangalore, where Russian experts are finishing “pre-acceptance checks” on the Kaveri engine that is headed for their facilities in Russia. The giant turbofan engine, suspended from a ceiling bracket, was being revved up gradually. As it roared to a deafening crescendo, engineers monitored the Kaveri’s power output, watching carefully from behind a bullet-proof glass window.

“The Kaveri’s development is complete”, confirmed Dr Mohana Rao, “In ground testing at GTRE it met the performance parameters laid down in 1998. The next step is to confirm that it performs during flight. A 50-person GTRE team will travel with the engine to Moscow and participate in the flight trials over the next 3-4 months.”

India has no facilities for altitude-testing and flight-testing jet engines. GTRE estimates it will take several hundred crore rupees to create such test facilities in India. Meanwhile, each test campaign in Russia costs Rs 50-60 crores.

 

[kish]

well i guess even a failed kaveri is better what we in pakistan have. we have never even attempted to make one. You learn alot more from failed dreams then successful ones.[/QUOT]


u r right ... its not a fail , its for getting experience so that one day we can have a totally indigenous technology.

 

[kish]

what kind of radar its going to have????

 

[gogbot]

what kind of radar its going to have????

Our own MMR radar developed for the LCA .

 

[gogbot]

Since no one is answering you questions all to well , can i give it a go.

I find it very interesting that LCA's development cost will soon exceed the Swedish Griphen. Will the LCA be as good as the griphen even though it development cost will be more than the Griphen??????

"Even Swedish Gripen fighter's developmental cost was around Rs 12,640 crore,'' said an official."
"The Rs 13,000-crore mark for the LCA project is breached even if the Kaveri fiasco is kept aside."

ToI has been peddling a lot of BS now at days.
Let me put everything is perspective.

12,640 crore , is the amount of money that is going to be spent on the LCA programme until 2018.
This Includes the development of the LCA-N and LCA-MkII , which includes the upgrades for the MK-II and navy version.

the Kaveri fiasco is kept aside

The sweeds did not develop their own engine , so their cost is also not engine inclusive.

Will the LCA be as good as the griphen even though it development cost will be more than the Griphen??????

You look at the spec for the SAAB Grpihen NG and the HAL Tejas-MKII . They are nearly identical.

the only dissimilarities is the easier, quicker giphen maintenance and refit for field crews , as opposed to the Tejas being build faster on the production line than normal aircraft.

The Griphen uses Canards and Relaxed Stability in its design , while the Tejas just uses Relaxed static stability , with possibly(if the EJ-2000 is picked) Trust vectoring as opposed to canards in the MK-II version

I thought the LCA was gona have a homegrown engine, but according to the article they are gona use a america engine then some other one for later models

The KAVERI engine was de-linked from the LCA program.

the Kaveri in its present state , meeting the specifications set in 1996 can not be used on the Tejas.

GRTE and SCHEMA(French) are now working on a new KAVERI-MKII
With increased thrust in the same range as the GE-414.

The Hindu : Front Page : Kaveri project: DRDO gets nod for tie-up with French firm

mmmmmm. iam confused. one indian news site says the Kaveri is a failer and the other that its being tested next month. One says that its being droped for a foreign engine and the other thats its for the LCA. And isn't the kaveri suppose to be homemade??? why is it being tested in russia???

Kaveri is not a failure, its development is in fact nearing an end.
Its project goals have been met.

India's to flight-test first indigenous jet engine next month - dnaindia.com

India does not have the High altitude Testing facilities . Which costs several hundreds of corers to set up.

Its cheaper to takes it to Russia and test it at their facilities.

in the short terms the project might suck, but in the long term it will help homegrown indian avation by tonnns

well if they get all the problems sorted out. it would be great for indian avation. Would their be other planes that would be able to use the kaveri??? if so it would also make a great export.

Plans are also already under way for derivatives of the Kaveri, including a non-afterburning version for an advanced jet trainer and a high-bypass-ratio turbofan based on the Kaveri core, named as Kabini. i

GTX-35VS Kaveri-MK1 - Unmanned Aerial Vehicles

GTRE/SCHEMA Kaveri MKII - Dassult Rafael (India's own , if purchased.), HAL Tejas (planned for production models)

KAVERI NG - concept Based on the Kaveri MKII , to power the
HAL Medium Combat Aircraft and beyond.

Derivatives:
The Indian government plans to adapt and further develop the Kaveri engine design and technology to create a gas-turbine powerplant for armoured fighting vehicles such as the Arjun tank.

Kaveri Marine Gas Turbine (KMGT), a recently developed derivative of the GTX-35VS Kaveri engine for ships.

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Also to note , the GTX-35VS Kaveri mk1(produces more trust than current Tejas engine GE-404) can be installed and used on the Tejas. IAF however is not happy with its own requirements set down in 1996 and have classified it as underpowered, meaning there are altitude and weight restrictions(important when operating in the high altitudes of Kargil or Saichen). If you are wondering why the Kaveri is not used. its becuase the GE engines have already been bought as of 2006 , when the Kaveri project showing no signs of progress. The Kaveri MkI is not to late for the Tejas MkI .

Since the GE-404 it self is unsatisfactory , a new more powerfull engine is being selected(GE-414 (f-18) or the EJ-2000 (Eurofighter)) and the Kaveri MKII is being built around those specifications.

So is they wanted to they could make a combat worthy Tejas.
They can still make one using the Current Kaveri MkI . It will just suffer from Altitude and weight restrictions

 

[sricharannaidu]

well if they get all the problems sorted out. it would be great for indian avation. Would their be other planes that would be able to use the kaveri??? if so it would also make a great export.

we are using kaveri egine for our war ships with little modification.....

 

[DESERT FIGHTER]

we are using kaveri egine for our war ships with little modification.....

WHAT?
This engine is a failure and how can somebody use a jet engine on a naval ship?

 

[bumbgola]

WHAT?
This engine is a failure and how can somebody use a jet engine on a naval ship?

Press release from DRDO dated 17 July 2008

“DEMONSTRATION OF 12 MW MARINE GAS TURBINE DEVELOPED BY GTRE (DRDO) FOR INDIAN NAVY”

Gas Turbine Research Establishment, Bangalore of DRDO had been indigenously developing Kaveri engine for propelling the Indian Light Combat Aircraft (Tejas). As a spin off during development, a marine version has been evolved to develop shaft power for propelling Indian Naval ship.

Using the core of the Kaveri engine, the scientists of GTRE have added Low Pressure Compressor & Turbine as a gas generator and designed a Free Power Turbine to generate shaft Power for the maritime application. The Kaveri Marine Gas Turbine (KMGT) as it has been named has been transported to Naval Dock Yard, Vishakapatnam and installed on to the Marine Gas Turbine test bed which is an Indian Navy Facility capable of testing the Gas Turbines upto 25 MW of shaft power through a reduction gearbox and a water brake dynamometer.

The involvement of Indian Navy in the development of the engine including their participation during testing has given a tremendous push to the success achieved so far.

During the recent visit of the Prime Minister of India, Dr. Manmohan Singh to Naval Dock Yard, Vishakapatnam, Shri T. Mohana Rao, Director, GTRE has demonstrated the engine to the VVIP along with the Senior Naval Officers. The engine has been further tested to its potential of 12 MW at ISA SL 35°C condition which is the requirement of Indian Navy for propelling the SNF (Rajput) class of ships. This peak power was demonstrated to various dignitaries including the Scientific Advisor to Raksha Mantri Shri M. Natarajan, Vice Admiral B.S.Randhawa, PVSM, AVSM, VSM, Dr. D.Banerjee, CC (R&D) among others.

India will become self-reliant in this critical technology of Gas Turbines for ship propulsion with the support Indian Navy as a very active and participating user throughout the development. This will put India in the elite club of Marine Gas Turbine designers amongst USA, Russia, UK and Ukraine.

 

[Novice09]

WHAT?
This engine is a failure and how can somebody use a jet engine on a naval ship?

When I just know how to paint, such things happens...

kaveri-marine

http://*****************/wp-content/uploads/defenceresearch/gtre/kaveri-marine.jpg

 

[sms]

WHAT?
This engine is a failure and how can somebody use a jet engine on a naval ship?

Turbine engines used in marine and defence applications starting early sixties.
here is some thing for you to read....

Tanks
The first use of a gas turbine in an armoured fighting vehicle was in 1954 when a unit, PU2979, specifically developed for tanks by C. A. Parsons & Co., was installed and trialled in a British Conqueror tank.[17] Since then, gas turbine engines have been used as APUs in some tanks and as main powerplants in Soviet/Russian T-80s and U.S. M1 Abrams tanks, among others. They are lighter and smaller than diesels at the same sustained power output but the models installed to date are less fuel efficient than the equivalent diesel, especially at idle, requiring more fuel to achieve the same combat range. Successive models of M1 have addressed this problem with battery packs or secondary generators to power the tank's systems while stationary, saving fuel by reducing the need to idle the main turbine. T-80s can mount three large external fuel drums to extend their range. Russia has stopped production of the T-80 in favour of the diesel-powered T-90 (based on the T-72), while Ukraine has developed the diesel-powered T-80UD and T-84 with nearly the power of the gas-turbine tank.


Naval

The first gas-turbine-powered naval vessel was the Royal Navy's Motor Gun Boat MGB 2009 (formerly MGB 509) converted in 1947. Metropolitan-Vickers developed the "Beryl" engine equipping an existing F2/3 jet engine with a power turbine. As the test was successful, the Fast Patrol Boats Bold Pioneer and Bold Pathfinder built in 1953 were the first ships created specifically for gas turbine propulsion.[18]

The first large scale, gas-turbine powered ships, were the Royal Navy's Type 81 (Tribal class) frigates, the first of which (HMS Ashanti) was commissioned in 1961.

The first U.S. gas-turbine powered ships were the U.S. Coast Guard's Hamilton-class High Endurance Cutters the first of which (USCGC Hamilton) commissioned in 1967. Since then, they have powered the U.S. Navy's Perry-class frigates, Spruance-class and Arleigh Burke-class destroyers, and Ticonderoga-class guided missile cruisers.

Full artical...
Gas turbine - Wikipedia, the free encyclopedia

 

[sudhir007]