ADA Tejas (LCA) News and Discussions

[TPFscopes]

@Steven Rogers

Naval planes need arrestor wires to arrest the plane. The landing gear and fuselage must be pretty sturdy. So, the weight won't decrease. Also, MK2 will be bigger and even some decrease in weight due to change in design will be made up by increased size. Fuel and payload are extra. Total weight can't be 9ton if you include payload and fuel. If you think otherwise, give me the break up

LCA MK2 planned to have 6.2ton empty weight, 5.7ton Payloads and about 3.4ton of fuel.
Desired weight for naval operations can be managed by compensating Payloads/fuel like they are doing with fulcrums.

If you guys want to compare landing gears, checkout below pics.
LCA (IAF)

LCA (navy)

My expectations for landing gear placement is very similar to Gripen improvement.

Gripen-C

Gripen-E

Hope you guys get the point that this shifting will not only provide more belly space as well as it will provide more internal space either to increase fuel capacity or to fix more Avionics inside like SPJ kit.

 

[Steven Rogers]

Naval planes need arrestor wires to arrest the plane. The landing gear and fuselage must be pretty sturdy. So, the weight won't decrease. Also, MK2 will be bigger and even some decrease in weight due to change in design will be made up by increased size. Fuel and payload are extra. Total weight can't be 9ton if you include payload and fuel. If you think otherwise, give me the break up

The landing gear and beefed up design is over engineered due to such small size, due to relax in design, the new lightweight Landing gear will be used, also the increased length, the beefed up structure will be relaxed, and over heavy forward fuselage will be brought lighter, mk2 will be built modular with 70 percent by weight of carbon composites, and will be lighter. Mk1 weighs around 9 ton(watch the AeroIndia show seminar videos, excluding fuel and payload).

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[TPFscopes]

The landing gear and beefed up design is over engineered due to such small size, due to relax in design, the new lightweight Landing gear will be used, also the increased length, the beefed up structure will be relaxed, and over heavy forward fuselage will be brought lighter, mk2 will be built modular with 70 percent by weight of carbon composites, and will be lighter. Mk1 weighs around 9 ton(watch the AeroIndia show seminar videos, excluding fuel and payload).

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By the mk1 is having empty weight of 6.5tons. and it can carry 2.45tons of fuel and maximum payload of upto 4 tons.
But empty weight will be trimmed down in MK1A for sure.

 

[pmaitra]

He is not speaking like layman! He is talking in context of USA where design engineers are required to obtain Professional Engineers (PE) license in areas where consequences of design error are significant. It is customary for architecture and civil engineers in US to obtain PE to work in large infrastructure projects. Even for aeronautical engineers, they may require PE license for applying to design positions.
The license is not required for engineer grads doing only CFD studies or component design, however, for those who involve in conceptualizing, designing & modifying aircraft, such licenses are required. Those who undergo through the qualification exam learn more about qualification criteria, benchmarking & testing, safe operational envelop, & safety criteria apart from fundamentals of aerospace engineering.

Refer: http://www.careerprofiles.info/aerospace-engineer.html

Licensing

At first, aerospace engineers do not need to have a license. However, as they gain more experience and responsibility, a license becomes required. Licensed aerospace engineers are called professional engineers (PE). In order to become licensed, an engineer must have:

• A degree from an engineering program accredited by ABET
• A passing score on the Fundamentals of Engineering (FE) exam
• Relevant work experience
• A passing score on the Professional Engineering (PE) exam
  Several exams are required for licensure. The Fundamentals of Engineering (FE) exam comes first, and can be taken as soon as an engineer has a bachelor's degree. If the engineer passes this exam, he or she becomes known as an engineer intern (EI), or an engineer in training (EIT). The next exam is called the Principles and Practice of Engineering exam, and can only be taken after the EI has gained enough experience on the job.
  
  Every state's licensing requirements are different. In some states, professional engineers must take further courses in their field, or else they lose their license. State licenses are typically valid in other states, depending on the particular requirements for licensure in that state.

The author was commenting about the person who should head our research and development establishments.

Have any of ADA’s Directors to date been licensed aeronautical engineers? NO.

You said, "design engineers are required to obtain Professional Engineers (PE) license."

I am not talking about design engineers. I am talking about who should head the organization.

In the context of the US, a person who heads an R&D organization does not require a PE. As a matter of fact, one does not require even a science degree.

Example: CEO of Lockheed-Martin, Marillyn A. Hewson, does not have any engineering degree.

On the other hand, COO of Northrop-Grumman, Wesley G. Bush, does have degrees in engineering but not in aerospace or aeronautics.

In both the aforementioned cases, there is no question of obtaining a PE in aerospace or aeronautical engineering.

My comment is not meant to be misconstrued as advocating non-science graduates for heading an R&D organization. No such implication was made and no attempt should be made to read what has not been written.

 

[Steven Rogers]

By the mk1 is having empty weight of 6.5tons. and it can carry 2.45tons of fuel and maximum payload of upto 4 tons.
But empty weight will be trimmed down in MK1A for sure.

Mk1 here I referred, Naval LCA MK1

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[TPFscopes]

Mk1 here I referred, Naval LCA MK1

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It is officially shared data of LCA AF prototype. Production variant of LCA mk1 have slightly lower empty weight.

 

[Steven Rogers]

It is officially shared data of LCA AF prototype. Production variant of LCA mk1 have slightly lower empty weight.

I referred and posted for Naval LCA MK1, not LCA MK1 AF

 

[TPFscopes]

I referred and posted for Naval LCA MK1, not LCA MK1 AF

LCA NP2 also managed to nearly 6.6ton of empty weight where as NP1 was exceptionally heavier.
It was stated in a CAG report. As soon as I got it , will post it here.

 

[Steven Rogers]

Watch from 2:40, it's of this year Aero India... Don't no about CAG report though.

 

[TPFscopes]

Watch from 2:40, it's of this year Aero India... Don't no about CAG report though.

He might including the weight of test equipments which are used while crucial aerial testing to gather important data required for flight improvements.

For example, you may find the variation in the weight of different airframes manufactured for various test purposes.

 

[Steven Rogers]

He might including the weight of test equipments which are used while crucial aerial testing to gather important data required for flight improvements.

For example, you may find the variation in the weight of different airframes manufactured for various test purposes.
View attachment 21681

Then he might have said about the basic weight

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[dumdumdum]

Second Squandron of Tejas to be f No. 18 Squadron of the Indian Air Force also known as 'The Flying Bullets'

http://www.tribuneindia.com/news/nation/pvc-recipient-sekhon-s-squadron-to-fly-again/502125.html

PVC recipient Sekhon’s squadron to fly again

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Previous Image Next Image

Nirmaljit Singh Sekhon

Vijay Mohan

Tribune News Service

Chandigarh, November 22

Coinciding with the golden jubilee of the commissioning of IAF’s only Param Vir Chakra recipient, Flying Officer Nirmaljit Singh Sekhon, the Air Headquarters has drawn up plans to revive the squadron that he had served in. The squadron will be re-formed on the indigenously-built Light Combat Aircraft Tejas. Sekhon’s outfit, No. 18 Squadron, also known as Flying Bullets, had been de-commissioned or “number-plated”, as it is called in Air Force terminology, two years ago after the MiG-27 aircraft that it was equipped with were decommissioned. (Follow The Tribune on Facebook; and Twitter @thetribunechd) “We met Air Chief Marshal BS Dhanoa this week and he told us that the IAF is making sure that Sekhon’s contribution to the nation and the force is never forgotten,” Air Marshal AK Singh, former Air Officer Commanding-in-Chief, Western Air Command, who is Sekhon’s batchmate, said. “The process of revising the war hero’s squadron is part of this endeavour,” he added. The squadron was formed on April 15, 1965, with Gnat fighter aircraft. It first saw action during the 1971 Indo-Pak war and operated out of Srinagar with the task of defending the Kashmir valley. Sekhon, then just 28 and hailing from Ludhiana, was part of the deployment. On December 14, 1971, Sekhon, along with another officer, scrambled to counter an attack by Pakistan aircraft and shot three enemy Sabre jets in aerial combat. His own aircraft was hit and he went down. For his actions, he was decorated with the highest gallantry award. After the war, the Gnats were replaced with HAL Ajeet in 1975. In May 1989, when the squadron was at Hindon, it received the MiG-27 and its role changed from air defence to ground attack. It then moved to Kalaikunda in the North-East, where it was awarded the President’s Standards in 2015 before flying into the sunset. Several of Sekhon’s batchmates from the 97th Pilots’ Course, who were commissioned in June 1967, had met the IAF chief and presented him a plaque dedicated to Sekhon that would be displayed in the Air Force Museum at Palam. Reviving the squadron, however, could take time as new aircraft are yet to come in. Last year, the IAF had raised its first Tejas unit, No. 45 Squadron, the Flying Daggers, to be based at Salur in Tamil Nadu, but it has just a handful of planes and is not fully operational.

 

[Prashant12]

India readies its Brahmastra


Another missile milestone was achieved Wednesday with the successful testing of the BrahMos supersonic air-launched cruise missile. The missile was “successfully flight-tested for first time from the IAF’s frontline fighter aircraft Sukhoi-30MKI against a sea-based target in the Bay of Bengal,” said a defence ministry release. Jointly built by India and Russia and named after the Moscow and Brahmaputra rivers, the BrahMos is the world’s fastest supersonic cruise missile.

Described as the “Brahmastra for the Indian Armed Forces” by Sivathanu Pillai, the co-founder of Brahmos Aerospace, the launch will significantly bolster the IAF’s ability to conduct surgical strikes deep inside enemy territory. With this launch, India now has a missile which can be launched from the air, land or sea. The Air Force version of the BrahMos, which can travel at Mach 2.8, has a strike range of 290 km and can carry a conventional warhead weighing up to 300 kg. It is lighter than the naval and land versions, enabling it to be launched from the Sukhoi, India’s heaviest all-weather, long-range fighter, specially modified to load it. Once a range of similar tests are completed, the missiles will be deployed on 42 Sukhois.

Buoyed by the successful launch of the BrahMos from the air, defence officials are already looking at ramping up production of newer iterations which will be smaller, faster and have longer ranges. These include BrahMos II, a hypersonic version (Mach 7 or higher), which returns to its launcher after delivering the warhead, and is expected to be ready around 2020. Then there’s BrahMos NG, or Lite, which at just 1.4 tons (and a lower range of 120 km) will be light enough to be carried by the indigenously built Tejas aircraft. As Sudhir Kumar Mishra, CEO and MD of BrahMos Aerospace put it, “The idea is to mass produce the missile so that we can integrate it on a variety of platforms. It is a new business initiative and we see a huge market for it in India and abroad.

http://www.newindianexpress.com/opi.../23/india-readies-its-brahmastra-1708710.html

 

[BON PLAN]

India readies its Brahmastra


Another missile milestone was achieved Wednesday with the successful testing of the BrahMos supersonic air-launched cruise missile. The missile was “successfully flight-tested for first time from the IAF’s frontline fighter aircraft Sukhoi-30MKI against a sea-based target in the Bay of Bengal,” said a defence ministry release. Jointly built by India and Russia and named after the Moscow and Brahmaputra rivers, the BrahMos is the world’s fastest supersonic cruise missile.

Described as the “Brahmastra for the Indian Armed Forces” by Sivathanu Pillai, the co-founder of Brahmos Aerospace, the launch will significantly bolster the IAF’s ability to conduct surgical strikes deep inside enemy territory. With this launch, India now has a missile which can be launched from the air, land or sea. The Air Force version of the BrahMos, which can travel at Mach 2.8, has a strike range of 290 km and can carry a conventional warhead weighing up to 300 kg. It is lighter than the naval and land versions, enabling it to be launched from the Sukhoi, India’s heaviest all-weather, long-range fighter, specially modified to load it. Once a range of similar tests are completed, the missiles will be deployed on 42 Sukhois.

Buoyed by the successful launch of the BrahMos from the air, defence officials are already looking at ramping up production of newer iterations which will be smaller, faster and have longer ranges. These include BrahMos II, a hypersonic version (Mach 7 or higher), which returns to its launcher after delivering the warhead, and is expected to be ready around 2020. Then there’s BrahMos NG, or Lite, which at just 1.4 tons (and a lower range of 120 km) will be light enough to be carried by the indigenously built Tejas aircraft. As Sudhir Kumar Mishra, CEO and MD of BrahMos Aerospace put it, “The idea is to mass produce the missile so that we can integrate it on a variety of platforms. It is a new business initiative and we see a huge market for it in India and abroad.

http://www.newindianexpress.com/opi.../23/india-readies-its-brahmastra-1708710.html

I think India will be aware to developp a anti ship variant.

 

[Steven Rogers]

I think India will be aware to developp a anti ship variant.

The tested one was air launched anti ship, not on a land target

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[Kshithij]

I think India will be aware to developp a anti ship variant.

The tested one was air launched anti ship, not on a land target

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Brahmos is by default anti ship missile. The ability to be launched from air has been added recently, that's all. Also, all anti ship missiles are also anti surface missiles. If it can target a moving ship, targeting surface static targets wouldn't be a difficult task. Maybe, even the moving transport erector launchers can also be targeted.

Anyways, this test was against a sea based target in Bay of Bengal sea

 

[BON PLAN]

The tested one was air launched anti ship, not on a land target

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I'm not sure.
This missile test was made over the sea, it doesn't mean it is made to sink ship !

 

[BON PLAN]

Also, all anti ship missiles are also anti surface missiles.

No.
Dedicated anti ship missile had a secondary possible anti ground use only recently : exocet AM38, SM39, AM39, first gen powder booster MM40 didn't have that. Only new liquid propellant exocet missile has it, (and maybe new AM39).

 

[binayak95]

I'm not sure.
This missile test was made over the sea, it doesn't mean it is made to sink ship !

The Brahmos is by its design an AShM. And it was later developed into a land attack variant. The Brahmos A test was against a ship target.

There is a reason each Indian built frigate and destroyer of the last decade has BrahMos as its primary weapon (Shivalik class, Teg class, Kolkata class)

 

[TPFscopes]

I'm not sure.
This missile test was made over the sea, it doesn't mean it is made to sink ship !

If you are considering ACC , than except BrahMos block-3 none of the variant will be able to do the job.

BrahMos has almost 32 times of kinetic energy than Tomahawk which makes it able to penetrate high strength bunkers and ships.

Let me elaborate it: As far as accuracy is concerned it has very high accuracy to max 1 meter variation. BrahMos is almost 2 times heavier and for times faster than Tomahawk which vertaling gives 32times of KE which will get used to penetrate high strength surfaces. Angled attack on ships can easily destroy them.
As aircraft carriers have much strengthen surfaces , block -3 of BrahMos has steep dive manuver capability in engagement phase which provides higher possibility to destroy it.

Anti-aircraft carrier variant of BrahMos successfully test-fired
SPECIAL CORRESPONDENT
NEW DELHI:, APRIL 01, 2012 00:00 IST
UPDATED: APRIL 01, 2012 04:37 IST
BrahMos, the India-Russia joint-venture, has developed an anti-aircraft carrier variant of the supersonic cruise missile and successfully tested it recently.

Sharing the information, BrahMos Chief A. Sivathanu Pillai said here that with this the organisation achieved the capability to attack aircraft carriers using the supersonic vertical dive variant of the missile that could travel up to 290 km.

Addressing media at the Defexpo here, he said that the steep dive variant of the missile was done for the Army and after its success, the path for the induction of the fourth regiment for mountain warfare was clear.

The Army had plans to deploy the missile regiment in the Northeast along the borders with China and the proposal was accorded sanction in a Defence Acquisition Council meeting last year.

Dr. Pillai said the tests were conducted also to evaluate certain new systems of the missile, which were produced by the Indian industries so that bulk production clearance could be given for integration. “This will facilitate faster induction in the Indian armed forces,” he said.


Considering that the country was planning to induct a number of new aircraft including the medium multirole combat fighter aircraft and MiG-29K naval fighters, the BrahMos planned to develop smaller version of the missile for them.

Meanwhile, at a brief function Dr. Pillai released a compendium of military issue, `Brahmand 2012,' which is an update of world defence covering technology, procurements, military data and up-to-date figures and information on defence budgets and equipment holding.

http://www.thehindu.com/todays-pape...mos-successfully-testfired/article3268072.ece