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HAL Tejas | Updates, News & Discussions-[Thread 2]

I guess all those requirements were fulfilled since the IAF will not accept a half baked air craft

Check the article above, it's just a symbolic move, most likely pushed by the government, but most of the requirements still seems to be not delivered. The gun, BVR missiles and the flight performance issues were meant to be fixed before induction, the new nose, IFR probe from FOC onwards. Looks more like IAF is forced to induct it, while the "hope" is, that the rest can be done till FOC by the end of the year.
 
Check the article above, it's just a symbolic move, most likely pushed by the government, but most of the requirements still seems to be not delivered. The gun, BVR missiles and the flight performance issues were meant to be fixed before induction, the new nose, IFR probe from FOC onwards. Looks more like IAF is forced to induct it, while the "hope" is, that the rest can be done till FOC by the end of the year.

Well I am all for it,in my view they should induct it & then slowly solve all the problems out.
 
Check the article above, it's just a symbolic move, most likely pushed by the government, but most of the requirements still seems to be not delivered. The gun, BVR missiles and the flight performance issues were meant to be fixed before induction, the new nose, IFR probe from FOC onwards. Looks more like IAF is forced to induct it, while the "hope" is, that the rest can be done till FOC by the end of the year.

IAF should have been forced a while back. It is better late than never to force them to look internally for their requirements. They should have been a partner in ensuring Tejas fits their requirements rather than a critic passing verdict after performance.
 
Well I am all for it,in my view they should induct it & then slowly solve all the problems out.

What's the point having 20 x interceptors inducted, when they can't intercept? :what: I find it rather amazing how long it needs to integrate the gun, expand the flight performance and at least integrate and flight test BVR missiles. IOC2 was in Dec 2013, what did they do last year?

IAF should have been forced a while back. It is better late than never to force them to look internally for their requirements. They should have been a partner in ensuring Tejas fits their requirements rather than a critic passing verdict after performance.

They should had been more involved in the project true, but the requirements are known for a long time now and not much seems to have changed / improved and that's on the developer of the product, not on the customer.
 
What's the point having 20 x interceptors inducted, when they can't intercept? :what: I find it rather amazing how long it needs to integrate the gun, expand the flight performance and at least integrate and flight test BVR missiles. IOC2 was in Dec 2013, what did they do last year?



They should had been more involved in the project true, but the requirements are known for a long time now and not much seems to have changed / improved and that's on the developer of the product, not on the customer.

Me too but probably if the IAF & HAL work closely they will achieve it faster
 
Me too but probably if the IAF & HAL work closely they will achieve it faster

IAF can't do much, they are dependent on what DRDO and co deliver. So without the improvements, they will get a good strike fighter, but would still need the Bisons to protect them or to take over A2A roles.
 
They should had been more involved in the project true, but the requirements are known for a long time now and not much seems to have changed / improved and that's on the developer of the product, not on the customer.

Who suffered because of the delay?
Ultimately, they must be looking at the larger interest and involved themselves. Anyway this line of argument has been beaten to death by both the sides, so no point in discussing it again.
Hope both sides learn and improve.
 
IAF can't do much, they are dependent on what DRDO and co deliver. So without the improvements, they will get a good strike fighter, but would still need the Bisons to protect them or to take over A2A roles.

Well lets hope the govt Reforms the DRDO ASAP so there can be greater accountability & these things like(How the hell in 3 decades you were not able to strap a simple gun on the fighter) can be avoided
 
Who suffered because of the delay?

IAF of course, but they will continue to keep suffering as long as LCA can't replace the Mig 21 as an interceptor. So inducting a squadron is just a symbolic move and a plus on paper wrt to the squad number, but doesn't change the operational facts. To change that, it needs at least the improved flight performance and the gun, to take over even air policing roles of the civil air space and southern areas.
 
IAF of course, but they will continue to keep suffering as long as LCA can't replace the Mig 21 as an interceptor. So inducting a squadron is just a symbolic move and a plus on paper wrt to the squad number, but doesn't change the operational facts. To change that, it needs at least the improved flight performance and the gun, to take over even air policing roles of the civil air space and southern areas.
The next 20 in foc configuration will do the interception meanwhile first 20 can be useful in cas roles
 
BENGALURU: As Team Tejas burns the midnight oil to integrate new weapon systems and upgrade other capabilities on the light combat aircraft (LCA) Tejas as mandated by the Indian Air Force (IAF), bad weather has taken away many flying hours, critical for testing such systems before certification.

From January 4, 2001, when Wing Commander Rajiv Kothiyal flew the first LCA prototype marking the maiden flight of the fighter jet to January 17, 2015, the day the first aircraft was handed over to the IAF, 2,850 trial flights of LCA have taken place.

If the first flight tested basic airworthiness, the subsequent ones have had greater challenges. Notwithstanding the nature of tests each of these flights carry out, ranging from weapon delivery to navigation, trial flights are crucial, senior IAF officials say.

However, Team Tejas was forced to abandon 80 scheduled flights last year, some attempting to even test the Russian Gun integrated with an LCA prototype. IAF has been pressurizing Aeronautical Development Agency (ADA) which has designed LCA to have this feature on the plane.

ADA chief PS Subramanya told TOI: "Not everything is under our control. Last monsoon saw 80 of our trial flights get cancelled, which means that we have to fly them this year to check the efficiency of the systems and the performance."



Without these test flights, ADA cannot guarantee IAF of the performance, nor get certification. In 2014, a total of 350 test flights took place, about 150 less than 2013, which saw 500 flights. "...A few flights also had to be postponed because of technical reasons," Subramanya said.

The team, which is currently working on integrating mid-air refuelling capabilities on Tejas is looking at achieving more than 500 flights this year, which will prove crucial with a final operational clearance for LCA expected next year.

A total of 15 LCAs lie in the hangers of HAL, including the seven Limited Series Production (LSP) aircraft, two Technology Demonstrators, three Fighter Prototypes, two Trainer Prototypes and one Naval Prototype. The LCA SP-1, which was handed over to IAF on Saturday is the 16th.

Weather hits Tejas upgrades - The Times of India
 
TOP 25 things u need to know about Tejas ................

1) Tejas is a relaxed static stability design, it is equipped with a quadruplex digital fly-by-wire flight control system to ease pilot burden handling.

2) DRDO is developing four versions of the LCA; namely LCA Air Force, LCA Air Force Trainer, LCA Navy and LCA Navy Trainer.

3) Tejas has successfully completed more than 2,600 flights and has participated in Hot Weather, Cold Weather, Iron Fist and Weapon Trials comprising of Bomb releases both in Computer Calculated Release Point (CCRP - Uses GPS for target acquisition and termination) and Continuous Computed Impact Point (CCIP - Uses Radar for target termination) modes.

4) In December 2014 LCA (Navy) Prototype 1 (NP1), designed to operate from the decks of air-craft carriers, successfully conducted a take off procedure from the Ski-Jump facility of Shore Based Test Facility (SBTF) at INS Hansa in Goa.

5) The LCA is constructed of aluminium-lithium alloys, carbon-fibre composites (C-FC), and titanium-alloy steels.

6) The digital Fly-by-Wire (FBW) system of the Tejas employs a powerful digital flight control computer (DFCC) made by Aeronautical Development Establishment (ADE) comprising four computing channels, each with its own independent power supply and all housed in a single LRU.

7) Tejas can fly at a speed of more than 1,350 km per hour and can be compared to some of the world's best fighter aircraft -- the Mirage 2000, F-16 and Gripen fighter jets.

8) The Tejas is equipped with both GPS and a ring laser gyro based inertial navigation system; for flying in poor conditions, an Instrument Landing System (ILS) and a ground proximity warning system based on the Terrain Referenced Navigation (TRN) system is also employed.

9) It is equipped with an advanced pulse Doppler, multimode planar array fire-control radar, it is suitable for air-to-air and air-to-surface modes.

10) 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.

11) The LCA also has secure and state-of-the-art advanced electronic warfare suite (EW suite), known as Mayavi, which includes a radar warning receiver (RWR), Missile Approach Warning (MAW) and a Laser warning receiver (LWR) system, Infrared & Ultraviolet Missile warning sensors, self-protection jammer, chaff, jaff and flares dispenser, an electronic countermeasures (ECM) suite and a towed radar decoy (TRD).

12) R73E missile successful launching in MMR and Helmet Mounted Display Guided Modes.

13) The Tejas Mark 2 will feature a more powerful engine the General Electric F414-GE-INS6 Turbofan which develops 98 kN of thrust, the engine will also have refined aerodynamics.

14) Stick Bombing, separation trials of emergency jettison of multiple stores and Drop Tanks were conducted at various locations across India.

15) Other notable milestones achieved are Spool Down Engine relight, Envelope expansion up to 24 degrees Angle of Attack, operational readiness platform scramble, Laser guided missions with Litening POD, Fuel System, Brake Management System and General Systems performance.

16) Multi-role capability demonstration by simultaneous release of Laser Guided Bombs, Chaff & Flare dispensation and firing of R73E missile within a span of 100 secs. Other important achievements are night flying and wake penetration.

17) Advanced Composites development of engine parts, Bypass Duct, Nozzle Flap, Bullet Nose Cone, curing achieved in both autoclave and press processes, indigenous resin development, developed glass transition temperature in excess of 300ºc.

18) Indigenous aircraft paint system, characterization to DEF STAN 80-216, BS 2x 33 & 34 and application process fine tuned to Tejas. Indigenously developed single trolley multiple operations, shorter flight readiness cycle time, loading trolleys for Drop Tanks, Weapons, Digital Flight Control Computer, Battery, Jet Fuel Starter, Landing Gears etc.

19) The Tejas has a night vision goggles (NVG)-compatible "glass cockpit" that is dominated by an CSIR-CSIO domestically developed head-up display (HUD).

20) Realization of Product Life Cycle Management (PLM) - Implementation for all projects, complete product data management across work centers, pipelines and electrical looms data management, synchronization of data, query workflows from design through manufacturing, digital manufacturing and ERP interface, online design query management for faster disposition, real time status dash boards for effective tracking.

21) Production Optimization - Introduction of laser tracker, high speed machining, automated drilling and riveting technologies, application of Design for Manufacture and Assembly (DFMA) concepts, production standard drawings, build quality improvement and product cycle time reduction.

22) Strength Test of Leading Edge Vortex Controller (LEVCON) for LCA Navy, successful flight trials with indigenously designed and qualified composite drop tanks, flight flutter tests for operational clean and heavy stores flight envelope expansion.

23) Water Tightness Tests, Lightning Test Facility and configured and commissioned Automatic Cable Harness Tester.

24) Production standard Digital Mock up (DMu) including system pipelines and electrical looms, capabilities like Geometric Dimensioning and Tolerancing (GD&T), analysis and assembly sequencing introduced.

25) Qualification of indigenous autoclave consumables like pressure sensitive tapes, vacuum bag sealants and release films for Carbon/Epoxy system.

‪#‎Tiwari_Sumit‬

TOP 25 things u need to know about Tejas... - Indian - Aerospace/defense NEWS. | Facebook
 
The next 20 in foc configuration will do the interception meanwhile first 20 can be useful in cas roles

Which is a requirement the IAF currently don't have, since it's not in the need of CAS fighters, so from IAF's perspective it's logical that they demand the fighter to provide what they need, before they want to order and induct it in larger numbers.
 
Which is a requirement the IAF currently don't have, since it's not in the need of CAS fighters, so from IAF's perspective it's logical that they demand the fighter to provide what they need, before they want to order and induct it in larger numbers.


Which is a requirement the IAF currently don't have, since it's not in the need of CAS fighters, so from IAF's perspective it's logical that they demand the fighter to provide what they need, before they want to order and induct it in larger numbers.
The first 20 'can be' brought up to FOC standard, mostly if not fully.
 
The first 20 'can be' brought up to FOC standard, mostly if not fully.
Of course, but when? Beyond 2018 after delivery? And now consider how much trouble IAF would had gone to, if they had started induction earlier or ordered more MK1s as many people wanted, with no operational benefit, just to point on paperspecs that we have more squads operational.
I just don't get the logic behind ADA's / DRDO's way of including capabilities throughout the whole project. HMS and LDP since years, while basics like a gun a proper radar or BVR missiles still lack so much behind schedule.
They had developed A2A modes, so why not integrate R77s for basic testing? The gun is not a new procurement either, what stopped them so long from integrating and testing it?
 

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