Very Latest Version Tejas flys April 23RD

[holysaturn]

Aao aao khabi Lalo khait tu ao meray bhai. lol

I don't bring past just think about future my friend.

so wat do u mean.

 

[notsuperstitious]

It's not a jet which is important my friend its how you fly that jet is more important. and you think bigger is better, but how would you know that because you are an Indian. lol

This is sheer trolling, just changing topic on all posts, pls don't reply guys.

 

[Arjun MBT]

hmm, we make them now and fly them with pride my friend. Any more question?

We make suk 30 mki and fly it with even more pride, does that make it ours??? I can even tell you whats Indian In Suk 30 MKI, but my dear you will never be able to tell us whats pakistani in JF-17, because u guys have nothing in it, only chinese and western stuff... Keep your pride burning buddy

 

[MZUBAIR]

Iam ready to release your frustration



The digital FBW system of the Tejas is built around a quadruplex redundant architecture to give it a fail op-fail op-fail safe capability. It employs a powerful digital flight control computer (DFCC) comprising four computing channels, each powered by an independent power supply and all housed in a single line replaceable unit (LRU). The system is designed to meet a probability of loss of control of better than 1×10-7 per flight hour. The DFCC channels are built around 32-bit microprocessors and use a safe subset of Ada language for the implementation of software. The DFCC receives signals from quad rate, acceleration sensors, pilot control stick, rudder pedal, triplex air data system, dual air flow angle sensors, etc. The DFCC channels excite and control the elevon, rudder and leading edge slat hydraulic actuators. The computer interfaces with pilot display elements like multi-function displays through MIL-STD-1553B avionics bus and RS 422 serial link.















Multi-mode radar (MMR), the primary mission sensor of the Tejas in its air defence role, will be a key determinant of the operational effectiveness of the fighter. This is an X-band, pulse Doppler radar with air-to-air, air-to-ground and air-to-sea modes. Its track-while-scan capability caters to radar functions under multiple target environment. The antenna is a light weight (<5 kg), low profile slotted waveguide array with a multilayer feed network for broadband operation. The salient technical features are: two plane monopulse signals, low side lobe levels and integrated IFF, and GUARD and BITE channels. The heart of MMR is the signal processor, which is built around VLSI-ASICs and i960 processors to meet the functional needs of MMR in different modes of its operation. Its role is to process the radar receiver output, detect and locate targets, create ground map, and provide contour map when selected. Post-detection processor resolves range and Doppler ambiguities and forms plots for subsequent data processor. The special feature of signal processor is its real-time configurability to adapt to requirements depending on selected mode of operation.

Following are the important avionics components:​

Mission Computer (MC): MC performs the central processing functions apart from performing as Bus Controller and is the central core of the Avionics system. The hardware architecture is based on a dual 80386 based computer with dual port RAM for interprocessor communication. There are three dual redundant communication channels meeting with MIL-STD-1553B data bus specifications. The hardware unit development was done by ASIEO, Bangalore and software design & development by ADA.

HUD: The Head-up-Display of the LCA is a unit developed by the state-owned CSIO, Chandigarh. The HUD is claimed to be superior to similar systems in the international market. According to Mr. CV M L Narasimham, head of CSIO's Applied Optics division, compared to Israel's HUD, the CSIO equipment is noiseless, silent, and offers a better field of view. It is compact, reliable, non-reflective and designed for high-performance aircraft. It was first put on the PV-2 version of the LCA.












Control & Coding Unit (CCU): In the normal mode, CCU provides real time I/O access which are essentially pilot's controls and power on controls for certain equipment. In the reversionary mode, when MC fails, CCU performs the central processing functions of MC. The CCU also generates voice warning signals. The main processor is Intel 80386 microprocessor. The hardware is developed by RCI, Hyderabad and software by ADA
.
Display Processors (DP): DP is one of the mission critical software intensive LRUs of LCA. The DP drives two types of display surfaces viz. a monochrome Head Up display (HUD) and two colour multifunction displays (MFDs). The equipment is based on four Intel 80960 microprocessors. There are two DPs provided (one normal and one backup) in LCA. These units are developed by ADE, Bangalore.

Mission Preparation & Data Retrieval Unit (MPRU): MPRU is a data entry and retrieval unit of LCA Avionics architecture. The unit performs mission preparation and data retrieval functions. In the preparation mode, it transfers mission data prepared on Data Preparation Cartridge (DPC) with the help of ground compliment, to various Avionics equipment. In the second function, the MPRU receives data from various equipment during the Operational Flight Program (OFP) and stores data on Resident Cartridge Card (RCC). This unit is developed by LRDE, Bangalore.

USMS Electronic Units: The following processor based digital Electronics Units (EU) are used for control and monitoring, data logging for fault diagnosis and maintenance: Environment Control System Controller (ECSC), Engine and Electrical Monitoring System Electronics Unit (EEMS-EU), Digital Fuel Monitoring System Electronics Unit (DFM-EU) and Digital Hydraulics and Brake Management System Electronics Unit (DH-EU)
Changes in PV-2: The production standard cockpit has no electro mechanical standby instruments. The cockpit is dominated by three 5"x 5" AMLCD MFD's, two Smart Standby Display Units (SSDU) and the indigenous HUD. The HUD has an Up Front Control Panel (UFCP) which is a significant man machine interface (MMI) enhancement which allows the pilot to program, initialize the avionics and enter mission and system critical data through an interactive soft touch keyboard. Although the FOV of this HUD is slightly less than that of contemporary units on other aircraft of this generation it is not considered significant because the ELBIT, Israel furnished DASH helmet mounted display and sight (HMDS) will form an integral part of the avionics suite.
The four utilities system monitoring LRUs have been reduced to two dual redundant units. These units perform the control, monitoring, data logging for fault diagnosis and maintenance functions.
A HAL Korwa developed Flight data recorder will be fitted after the initial flights.
The PV2 is a much lighter aircraft and possesses advanced software technology, unlike the Test Demonstrator I, II and PV1. There is an advancement in the build standard of PV2, which is a software intensive fourth generation combat aircraft built to production standard. Besides having a high percentage of composite materials in its airframe structure, it incorporates a state-of-the-art, integrated, modular avionics system with open architecture concepts to facilitate easy hardware and software upgrades and re-usability.


MMR HYBRID : Another critical technology area tackled for indigenous development by the ADA team is the Tejas' Multi-Mode Radar (MMR). It was initially planned for the LCA to use the Ericsson Microwave Systems PS-05/A I/J-band multi-function radar, which was developed by Ericsson and Ferranti Defence Systems Integration for the Saab JAS-39 Gripen. However, after examining other radars in the early 1990s, the DRDO became confident that indigenous development was possible. HAL's Hyderabad division and the LRDE were selected to jointly lead the MMR program; it is unclear exactly when the design work was initiated, but the radar development effort began in 1997.

The DRDO's Centre for Airborne Studies (CABS) is responsible for running the test programme for the MMR. Between 1996 and 1997, CABS converted the surviving HAL/HS-748M Airborne Surveillance Post (ASP) testbed into a testbed for the avionics and radar of the LCA. Known as the 'Hack', the only major structural modification besides the removal of the rotodome assembly was the addition of the LCA's nose cone in order to accommodate the MMR.

By mid-2002, development of the MMR was reported to be experiencing major delays and cost escalations. By early 2005 only the air-to-air look-up and look-down modes two very basic modes were confirmed to have been successfully tested. In May 2006 it was revealed that the performance of several modes being tested still "fell short of expectations." As a result, the ADA was reduced to running weaponisation tests with a weapon delivery pod, which is not a primary sensor, leaving critical tests on hold. Due to delay in development of MMR, government have come out with the collaboration with IAI for development of Radar the sensor for the new radar is supposed to be EL/M-2052 AESA from Elta and the remaining item and software will be combination of MMR and IAI developed products. Varadarajan, (Director - LRDE) has said that LRDE has initiated development of active electronically scanning array radar for airborne applications. And that these radars will be integrated with Tejas light combat aircraft-Mark II by 2012-13.

EW suite:. Primary responsibility for development of the EW suite is that of the Defence Avionics Research Establishment (DARE), Bangalore.but recently (DARE) has entered a joint venture with israeli aircraft industry (IAI) for development of EW suite called " Mayavi " an ancient sanskrit word ,which (IAI) will intergrate it with Jsf F-35 and (DARE) in lca-tejas

All the Other engines are a substitute for Kaveri.....

A simple question whats your contribution to JF-17??

A simple answer for a simple question.....goto JF-17 Thread.

And in short designing and local manufacturing of 60 % airframe and 50 % avionics.

 

[MZUBAIR]

A simple question whats your contribution to JF-17??

I think they have nothing to say[/QUOTE]

Yes many things to say.....look in above post.
And yes one thing I should mention the JF-17 project is in Air and LCA (Last Chance Aircraft) is still looking for Radar and engine

 

[holysaturn]

I think they have nothing to say

Yes many things to say.....look in above post.
And yes one thing I should mention the JF-17 project is in Air and LCA (Last Chance Aircraft) is still looking for Radar and engine[/QUOTE]

update bro it just flew with radar which may well be a 2052 with indian components..........and the lca still flies ................40 orders for the lca hav been placed and are being produced ...............jf-17 the first sqd has just been finished so wats the big diff.

 

[Arjun MBT]

A simple answer for a simple question.....goto JF-17 Thread.

And in short designing and local manufacturing of 60 &#37; airframe and 50 % avionics.

well, May I know which Page of your so called thread should I visit to know what are those 50% avionics, and the 60% modifications done by pak in the Russian Mig 33 design... please enlighten more about it

 

[Arjun MBT]

Yes many things to say.....look in above post.
And yes one thing I should mention the JF-17 project is in Air and LCA (Last Chance Aircraft) is still looking for Radar and engine

Well We test before inducting , and You test after Inducting, the real owners of the Joint failure-17 Have still not inducted it, this really proves its worth

 

[holysaturn]

A simple answer for a simple question.....goto JF-17 Thread.

And in short designing and local manufacturing of 60 % airframe and 50 % avionics.

then i think the su-30mki is indian,pak-fa will be indian,MTA will be indian,126mrca will be indian..............pakistani fighter means a plane whose components are mostly designed in pakistan and it doeas not mean designed in china and manufactured in pak.

india manufactures even the engines for the mki so mki is more indigenous than joke fly-17.

Total indigenisation of Sukhoi next year: HAL

Vladimir Radyuhin

MOSCOW: The first fully indigenous Su-30MKI fighter plane will roll off Indian assembly lines in 2010, a top executive at Hindustan Aeronautics Limited said on Wednesday.

“Next year, HAL will achieve 100 per cent indigenisation of the Sukhoi aircraft — from the production of raw materials to the final plane assembly,” V. Balakrishnan, general manager, Aircraft Manufacturing Division, told The Hindu here.

A five-member HAL delegation is taking part in MAKS-2009, Russia’s international air show now under way here.

Out of the 230 Su-30MKI air superiority multirole fighters the Indian Air Force plans to induct by 2015, 140 aircraft are to be built in India. License production began in 2004, with the first planes assembled from knockdown kits supplied by Russia. The programme provided for a gradual increase in the number of parts and components produced locally.

Last year, HAL mastered the manufacture of the wing and the tail. This year, it started producing the fuselage and raw materials, Mr. Balakrishnan said. The final and most challenging phase involved the indigenous manufacture of the engine.

“We’re currently testing the locally produced engine for the Su-30MKI and are planning to launch its production in 2010.” HAL would manufacture 60 Su-30MKI fighters in the full production cycle till 2015, he said.

India also plans to sign an inter-governmental agreement (IGA) with Russia for supply of HAL-manufactured Sukhoi airframes for third countries. It is already supplying some avionics equipment for Sukhoi aircraft Russia is building for third countries.

Later this year, India and Russia would sign a design accord for a fifth generation fighter aircraft they agreed to build jointly in 2007. India would be responsible for the manufacture of composite-material parts of the airframe, avionics and software packages, Mr. Balakrishnan said.

The Russian single-seat version of the fifth generation fighter plane is expected to make its maiden flight in the coming winter. India will induct a twin-seat version.
The Hindu : National : Total indigenisation of Sukhoi next year: HAL

 

[Arjun MBT]

@holysaturn: let me help you by providing Indian components in Sukhoi 30 MKI....

The Su-30MKI contains not only Russian, French, South African and Israeli Customer Furnished Equipment (CFE), but also a substantial percentage of Indian designed and manufactured avionics. They took six years to develop from start to MKI. Advanced avionics were developed by DRDO under a project code named "Vetrivale" (a Tamil name for the victorious lance carried by the youthful Lord Karthikeya or Murugan, a son of Parvati and Shiva) in close collaboration with the PSUs and the IAF. Indian avionics have been received and acknowledged enthusiastically by the Russian principals.

The following are the components developed by Indian agencies:

Mission Computer cum Display Processor - MC-486 and DP-30MK (Defence Avionics Research Establishment - DARE)
Radar Computer - RC1 and RC2 (DARE)
Tarang Mk2 Radar Warning Receiver (RWR) + High Accuracy Direction Finding Module (HADF) (DARE
IFF-1410A - Identification Friend or Foe (IFF)
Integrated Communication suite INCOM 1210A (HAL)
Radar Altimeter - RAM-1701 (HAL)
Programmable Signal Processor (PSP) - (LRDE)
Multi Function Displays (MFD) - Samtel/DARE
The 32-bit Mission Computer performs mission-oriented computations, flight management, reconfiguration-cum-redundancy management and in-flight systems self-tests. In compliance with MIL-STD-1521 and 2167A standards, Ada language has been adopted for the mission computer's software. The other DARE-developed product, the Tarang Mk2 (Tranquil) radar warning receiver, is manufactured by state-owned BEL at its Bangalore facility.

These avionics equipment have also been certified for their airworthiness in meeting the demanding standards of Russian military aviation. The cumulative value of such indigenous avionic equipment is estimated to exceed Rs. 250 lakhs per aircraft. Since the core avionics were developed by a single agency (DRDO) - they have significant commonality of hardware and software amongst them using a modular approach to design. This obviously results in major cost and time savings in development; it also benefits the user in maintenance and spares inventories.

The DRDO has gone a step further and come out with a new design of the Core Avionics Computer (CAC) which can be used with a single module adaptation across many other aircraft platforms. Thus the CAC which is derived from the computers designed for the Su-30MKI will now be the centre piece of the avionics upgrades for the MiG-27 and Jaguar aircraft as well. The CAC was demonstrated by DRDO at the Aero India exhibition at Yelahanka and attracted a good deal of international attention. Taken together with the systems already developed indigenously for the LCA (such as the Digital Flight Control Computer and HUD), clearly Indian avionics have a significant export potential in the burgeoning global market for avionics modernisation.

The navigation/weapons systems from the various countries were integrated by Ramenskoye RPKB.

HAL will supply components to Irkut for 300 Su-30s meant for export to Malaysia and Algeria apart from those meant for IAF.

 

[imran iqbal]

I think they have nothing to say

Yes many things to say.....look in above post.
And yes one thing I should mention the JF-17 project is in Air and LCA (Last Chance Aircraft) is still looking for Radar and engine

And what about your Radar and engine, booted out by french and underpowered engine from Russia ???

 

[imran iqbal]

Tu phir is paper plane say Indian kay SU-30 ki phati qun hai. Why they push France to stop deal with Pakistan about JF-17?

Phalay baat ko tolo phir bolo...

Beta, kiski kisse phati hui hai uski missal toh 26/11 ke baad su-30MKI nei pakistan mein 2 baar ghus kar de de thi. Neither your F-16 nor JF-17 could do jacksh1t. We don't take that bullying, remember atlantique ?

And why do you need french equipment, i think it was fully indigenous plane of Pakistan and China ?

 

[JonAsad]

Lets not get off topic.. lets not bring jf-17 here..
Lets talk of tejas only..

yh it sux.. Period

 

[Arjun MBT]

Lets not get off topic.. lets not bring jf-17 here..
Lets talk of tejas only..

yh it sux.. Period

Well, Buddy No one is really interested to talk about JF-17 of yours, but there is a limit.... See who derailed it, tell them, advise them

 

[imran iqbal]

Yes we do.

General Electric 404 Engine (In this picture)
Elbit Systems Avionics.
French Air Frame Delta wing Design.
Israeli Munitions.
Israeli Made HMD
Israeli designed Cockpit.
New Engine GE-414 US or EJ-2000 British.
American Ejection Seats.
Israeli Designed Data Link BUS & F.B.E.W.C.S


Prove them wrong before you show me your fake patriotism , Indians have very Little or NO Technical Contribution in the Program.

Indigenous content of LCA

Fly-by-wire Control Laws

One of the most ambitious requirements for the LCA was the specification that it would have "relaxed static stability." Although Dassault had offered an analogue FCS system in 1988, the ADA recognised that digital flight control technology would soon supplant it.[5] RSS technology was introduced in 1974 on the General Dynamics (now Lockheed Martin) YF-16, which was the world's first aircraft to be slightly aerodynamically unstable by design. Most aircraft are designed with "positive" static stability, which means they have a natural tendency to return to level and controlled flight in the absence of control inputs; however, this quality tends to oppose the pilot's efforts to maneuver. An aircraft with "negative" static stability (i.e., RSS), on the other hand, will quickly depart from level and controlled flight unless the pilot constantly works to keep it in trim; while this enhances maneuverability, it is very wearing on a pilot relying on a mechanical flight control system. What made RSS practical on the YF-16 was a new technology — the "fly-by-wire" flight control system — which employs flight computers to electronically keep the aircraft's instability in check whenever it is not desired.

Development of a FBW flight control system requires extensive knowledge of flight control laws and the expensive writing of a considerable amount of software code for the flight control computers, as well as its integration with the avionics and other electronic systems. When the LCA programme was launched, FBW was a state-of-the-art technology and such a sensitive one that India could find no nation willing to export it. Therefore, in 1992 the LCA National Control Law (CLAW) team was set up by the National Aeronautics Laboratory to develop India's own version. The CLAW team's scientists and mathematicians were successful in developing their control laws, but could not test them since India did not possess advanced real-time ground simulators at that time. Accordingly, British Aerospace (BAe) and Lockheed Martin were brought in to help in 1993, but the effort required for the Aeronautical Development Establishment to code the control laws into the FCS software proved a much larger job than originally anticipated.

Specific control law problems were tested on BAe's simulators (and on HAL's, once theirs became available). As it was being developed, progressive elements of the coding were checked out on the "Minibird" and "Ironbird" test rigs at the ADE and HAL, respectively. A second series of inflight simulation tests of the integrated flight control software were conducted on the F-16 VISTA (Variable In-flight Stability Test Aircraft) simulator in the U.S. in July 1996, with 33 test flights being carried out. However, Lockheed Martin's involvement was terminated in 1998 as part of an embargo enacted by the U.S. in response to India's second nuclear tests in May of that year.

The NAL's CLAW team eventually managed to successfully complete integration of the flight control laws indigenously, with the FCS software performing flawlessly for over 50 hours of pilot testing on TD-1, resulting in the aircraft being cleared for flight in early 2001. The LCA's maiden flight was made by TD-1 from National Flight Test Center(NFTC), near Bangalore, on 4 January 2001, and its first successful supersonic flight followed on 1 August 2003. TD-2 was scheduled to make its first flight in September 2001, but this was not achieved until 6 June 2002. The Tejas' automatic flight control system (AFCS) has been highly praised by all of its test pilots, one of whom said that he found it easier to take off with the LCA than in a Mirage [2000].

Airframe
The LCA is constructed of aluminium-lithium alloys, carbon-fibre composites (CFC), and titanium-alloy steels. The Tejas employs CFC materials for up to 45% of its airframe, including in the fuselage (doors and skins), wings (skin, spars and ribs), elevons, tailfin, rudder, airbrakes and landing gear doors. Composites are used to make an aircraft both lighter and stronger at the same time compared to an all-metal design, and the LCA's percentage employment of CFCs is one of the highest among contemporary aircraft of its class.[34] Apart from making the plane much lighter, there are also fewer joints or rivets, which increases the aircraft's reliability and lowers its susceptibility to structural fatigue cracks.

The tailfin for the LCA is a monolithic honeycomb piece, an approach which reduced its manufacturing cost by 80% compared to the customary "subtractive" or "deductive" method, whereby the shaft is carved out of a block of titanium alloy by a computerized numerically controlled machine. No other manufacturer is known to have made fins out of a single piece. ...means we even innovated new concepts which never existed for other planes [35] A 'nose' for the rudder is added by 'squeeze' riveting.

The use of composites in the LCA resulted in a 40% reduction in the total number of parts compared to using a metallic frame. Furthermore, the number of fasteners has been reduced by half in the composite structure from the 10,000 that would have been required in a metallic frame design. The composite design also helped to avoid about 2,000 holes being drilled into the airframe. Overall, the aircraft's weight is lowered by 21%. While each of these factors can reduce production costs, an additional benefit — and significant cost savings — is realised in the shorter time required to assemble the aircraft — seven months for the LCA as opposed to 11 months using an all-metal airframe.[6]

The airframe of the naval variant of the Tejas will be modified with a nose droop to provide improved view during landing approach, and wing leading-edge vortex controllers (LEVCON) to increase lift during approach. The LEVCONs are control surfaces that extend from the wing-root leading edge and thus afford better low-speed handling for the LCA, which would otherwise be slightly hampered due to the increased drag that results from its delta-wing design. As an added benefit, the LEVCONs will also increase controllability at high angles of attack (AoA).

The naval Tejas will also have a strengthened spine, a longer and stronger undercarriage, and powered nose wheel steering for deck manoeuvrability.[11][36] The Tejas trainer variant will have "aerodynamic commonality" with the two-seat naval aircraft design.

Landing gear

The Tejas has a hydraulically retractable tricycle-type landing gear with a pair of single inward-retracting mainwheels and a steerable, twin-wheel forward-retracting nose gear. The landing gear was originally to have been imported, but following the imposition of trade sanctions, HAL developed the entire system independently.

India's Nuclear Fuel Complex (NFC) led the team that developed the titanium half-alloy tubes that are used for hydraulic power transmission and they are critical components in the LCA. India is one of only six nations which have developed this technology, which also has space applications.

Flight controls

Since the Tejas is a "relaxed static stability" design, it is equipped with a quadruplex digital fly-by-wire flight control system to ease handling by the pilot. The Tejas' aerodynamic configuration is based on a pure delta-wing layout with shoulder-mounted wings. Its control surfaces are all hydraulically actuated. The wing's outer leading edge incorporates three-section slats, while the inboard sections have additional slats to generate vortex lift over the inner wing and high-energy air-flow along the tail fin to enhance high-AoA stability and prevent departure from controlled flight. The wing trailing edge is occupied by two-segment elevons to provide pitch and yaw control. The only empennage-mounted control surfaces are the single-piece rudder and two airbrakes located in the upper rear part of the fuselage, one each on either side of the fin.

The digital FBW system of the Tejas employs a powerful digital flight control computer (DFCC) comprising four computing channels, each with its own independent power supply and all housed in a single LRU. The DFCC receives signals from a variety of sensors and pilot control stick inputs, and processes these through the appropriate channels to excite and control the elevons, rudder and leading edge slat hydraulic actuators. The DFCC channels are built around 32-bit microprocessors and use a subset of the Ada language for software implementation. The computer interfaces with pilot display elements like the MFDs through MIL-STD-1553B multiplex avionics data buses and RS-422 serial links.

Avionics


The Tejas has a night vision goggles (NVG)-compatible "glass cockpit" that is dominated by an indigenous head-up display (HUD), three 5 in x 5 in multi-function displays, two Smart Standby Display Units (SSDU), and a "get-you-home" panel. The CSIO-developed HUD, Elbit-furnished DASH helmet-mounted display and sight (HMDS), and hands-on-throttle-and-stick (HOTAS) controls reduce pilot workload and increase situation awareness by allowing the pilot to access navigation and weapon-aiming information with minimal need to spend time "head down" in the cockpit.

The MFDs provide information on the engine, hydraulics, electrical, flight control, and environmental control systems on a need-to-know basis, along with basic flight and tactical information. Dual redundant display processors produce computer-generated imagery on these displays. The pilot interacts with the complex avionics systems through a simple multifunction keyboard and function and sensor selection panels.

Target acquisition is accomplished through a state-of-the-art radar — potentially supplemented by a laser designator pod, forward-looking infra-red (FLIR) or other opto-electronic sensors — to provide accurate target information to enhance kill probabilities. A ring laser gyro (RLG)-based inertial navigation system (INS) provides accurate navigation guidance to the pilot. The LCA also has secure and jam-resistant communication systems such as the "identify friend or foe" (IFF) transponder/interrogator, VHF/UHF radios, and air-to-air/air-to-ground datalinks. The ADA Systems Directorate's Integrated Digital Avionics Suite (IDAS) integrates the flight controls, environmental controls, aircraft utilities systems management, stores management system (SMS), etc. on three 1553B buses by a centralised 32-bit, high-throughput mission computer.

Self-protection

An advanced electronic warfare suite enhances the Tejas' survivability during deep penetration and combat. The LCA's EW suite is being developed by the Defence Avionics Research Establishment (DARE) — which was known as the Advanced Systems Integration and Evaluation Organisation (ASIEO) until June 2001 — with support from the Defence Electronics Research Laboratory (DLRL).[8] This EW suite, known as "Mayavi" (Sanskrit: "Magician"), includes a radar warning receiver (RWR), self-protection jammer, laser warning system, missile approach warning system, and chaff/flare dispenser. In the interim, the Indian Defence Ministry has revealed that an unspecified number of EW suites have been purchased from Israel's Elisra for the LCA prototypes.[39]

The ADA claims that a degree of stealth has been designed into the Tejas. Being very small, there is an inherent degree of "visual stealth", but the airframe's use of a high degree of composites (which do not themselves reflect radar waves), a Y-duct inlet which shields the engine compressor face from probing radar waves, and the application of radar-absorbent material (RAM) coatings are intended to minimise its susceptibility to detection and tracking by the radars of enemy fighters, airborne early warning and control (AEW&C) aircraft, active-radar air-to-air missiles (AAM), and surface-to-air missile (SAM) defense systems.

MAYAVI EW system

MAYAVI is going to be incorporated in Israeli F35 and what else does any one need to prove that some of our systems are world class..??

The scientist said this venture will see an advanced EW system called MAYAVI developed for India’s Light Combat Aircraft (LCA) and F-35 Joint Strike Fighters that Israel plans to buy from the United States.

The EW system will feature advanced radar warning, radar jamming, and electronic combat and self-protection systems. It also will have an Integrated Defensive Electronic Radio Frequency Countermeasures system to help protect the LCA against radar-guided missiles.

A consortia of nuclear and defence entities led by the Nuclear Fuel Complex (NFC), here have developed titanium half alloy tubes, a key materials component that would both accelerate the project and reduce production costs of the light combat aircraft (LCA)-Tejas.

Used for hydraulic power transmission, these titanium tubes also find application in space, especially the geosynchronous satellite launch vehicle (GSLV) of the Indian Space Research Organisation (ISRO).

India would be among a group of half a dozen nations, now with the capability to produce these tubes indigenously. The other countries include, the US, the UK, France, Russia and Germany.

Escape systems
To improve pilot safety during ejection, the Armament Research and Development Establishment (ARDE), Pune, India created a new line-charged canopy severance system, which has been certified by Martin-Baker. This system, which is the first of its kind, can be operated from outside the aircraft, an important consideration when the pilot is trapped or unconscious.


# An indigenous Head Up Display (HUD) replaces the imported HUD. The new HUD, developed by CSIO, Chandigarh, has a larger field of view, three times the brightness, higher redundancy and is noiseless since the design does not call for a cooling fan.
# An indigenous single LRU Integrated Communication System (INCOM) replaces a three LRU INCOM in LCA-TD1. The new INCOM developed by HAL , Hyderabad is a second generation software based system with significant weight saving (17 Kg), reduced volume(43% of original volume), and improved system performance and reliability.

* Mission Computer(MC): MC performs the central processing functions apart from performing as Bus Controller and is the central core of the Avionics system. The hardware architecture is based on a dual 80386 based computer with dual port RAM for interprocessor communication. There are three dual redundant communication channels meeting with MIL-STD-1553B data bus specifications. The hardware unit development was done by ASIEO, Bangalore and Software Design & Development by ADA.

* Control & Coding Unit (CCU): In the normal mode, CCU provides real time I/O access which are essentially pilot's controls and power on controls for certain equipment. In the reversionary mode, when MC fails, CCU performs the central processing functions of MC. The CCU also generates voice warning signals. The main processor is Intel 80386 microprocessor. The hardware is developed by RCI, Hyderabad and software by ADA.

* Display Processors (DP): DP is one of the mission critical software intensive LRUs of LCA. The DP drives two types of display surfaces viz. a monochrome Head Up display (HUD) and two colour multifunction displays (MFDs). The equipment is based on four Intel 80960 microprocessors. There are two DPs provided (one normal and one backup) in LCA. These units are developed by ADE, Bangalore

* Mission Preparation & Data Retrieval Unit (MPRU): MPRU is a data entry and retrieval unit of LCA Avionics architecture. The unit performs mission preparation and data retrieval functions. In the preparation mode, it transfers mission data prepared on Data Preparation Cartridge (DPC) with the help of ground compliment, to various Avionics equipment. In the second function, the MPRU receives data from various equipment during the Operational Flight Program (OFP) and stores data on Resident Cartridge Card (RCC). This unit is developed by LRDE, Bangalore.

* USMS Electronic Units: The following processor based digital Electronics Units (EU) are used for control and monitoring, data logging for fault diagnosis and maintenance.
o Environment Control System Controller (ECSC)
o Engine and Electrical Monitoring System Electronics Unit (EEMS-EU)
o Digital Fuel Monitoring System Electronics Unit (DFM-EU)
o Digital Hydraulics and Brake Management System Electronics Unit (DH-EU)
* V/UHF Equipment: V/UHF equipment is a secure jam resisant airborne radio communication set which provides simplex two way voice and data communication in the VHF and UHF frequency bands. This unit is developed by HAL, Hyderabad.
* Multi Function Keyboard (MFK): MFK is an interfce for pilot dialogue concerning certain selected equipment of Avionics system. It comprises LCD panel, alphanumeric keys, push buttions for power ON / OFF and LEDs indicating power ON / OFF status of certain Avionics equipment. This unit is developed by BEL, Bangalore.
* Head Up Display (HUD): HUD is of conventional type with a Total Field of View (TFOV) of 24 degrees circular. A Change Coupled Device (CCD) based camera is mounted on the HUD for recording purposes. HUD dsplays various navigation and weapon related data. This unit is developed by CSIO, Chandigarh.
* Colour Multi Function Displays (MFDs): LCD based colour MFDs hava a useful screen area of 125 mm x 125 mm. They have soft keys around their periphery for interaction with the systems. This display provides various aircraft system pages and navigation pages in addition to RADAR & FLIR display.


And this list is 8 years old