HAL Tejas | Updates, News & Discussions

[Sergi]

The early SU 30s (not the MKIs) are being sold I beleieve. Though all MKIs will remain in service.

Su-30MKK. They were stop gap measure and never mean to stay with IAF. Returned to the owner long long ago - Russia. Now they can do whatever they want.

 

[Guynextdoor2]

Are you trying to fool people that LCA has AESA radar? Or are you so ignorant yourself.

WILL HAVE maggot. Probably wouldn't have asked if you weren't illiterate

Livefist: EXCLUSIVE: India's LCA AESA Radar Programme Detailed

 

[Superboy]

Tejas is not operational till the first squadron is completed by 2016 or so. Currently, only JF-17 and Gripen share the small single engine class.

 

[Guynextdoor2]

Well , I do not think anybody has claimed the Tejas is operational , it still has a long way to go for that , considering that it has only been a week , when it obtained the Initial Operating Clearance the second , the aircraft will only get the Final Operational Clearance in 2015 . Diverterless Sonic Intake cant be equipped , its by design .



I am still waiting for you to prove the " an aircraft from an era far gone " you said in your first post with an intent to troll , put up a comparison and enlighten us all , based on a childlish Al body argument . Lets see , when it happens . A lot of your things are facing delays and there's no end in sight . The complex project had enough time , money and resources spent and vested in , to sort out the complexities . You had an advantage there in terms of that , we didn't . There's no temporary integration if you understand the whole thing , these aircraft are going into production with the same components ( yes its freezed for now ) and even the LCA MK II per current reports , will use the same foreign engine and radar if DRDO fails to deliver on the promise again for AESA radar .

My simple argument was that composite body isn't an essential requirement for a fourth generation aircraft , yes it has its benefits but we chose a different approach . JF-17 will increase the percentage of composites gradually in Block-II - the first of which will be rolled out in June 2014 . Well , I can assure you that its not a hell of a difference you have made by just making airframe from 45% composites . The RCS reduction is compensated by the DSI in Thunder . The weight reduction is being worked upon , either by WS-13 engine and increasing the composite .

Every modern aircraft has it - the point being ? I asked you about the declared too easy approach , the JFT was faster in development because of its management not because it was cutting corners somehow . You may have chosen a different approach but in the end , a total and complete Transfer of Technology is being transferred to Pakistan , we will get the expertise in the field . All of it , except the engine of course , currently building about 58% ( complete avionics ) of the aircraft , slated to go to 75% by 2015 at PAC , Kamra . I am not denying that the Thunder isn't a indigenous project - at best its a joint development .

Lets see , when it happens . A lot of your things are facing delays and there's no end in sight .

It's gonna take us a decade to even achieve the no. of aircrafts we need to induct. More than enough time to wrap up most of these projects. Importantly, I think it's clear that India is maturing. Asking 'will they do it' is a stupid question. Question is when.
All our projects, one way or another get finished. We don't have the habit of 'shelving' anything.

And do you expect India to have its indigenous AESA radar for LCA MKII?



What are you talking about??? Tejas existed since 1983, when it was first planned. Though Tejas was not even designed though, it was a better plane than F-16 back then.

Koi SHak maggot?

 

[SrNair]

Tejas fighter is in itself a good start but i think India has a long way to go. However i wish the best to India for the future

This single small jet fighter program give us enough experience in aerospace industry.

 

[HariPrasad]

What's the point of digital quadruplex FBW and composite materials when Tejas is only capable of Mach 1.6 and 7g?

This is what it has achieved till date with limited flight envelope opened. It will betested for 10 G and certified for 8 to 9G. It has achieved AOA of 24* till IOC. Finally it will be certified for 28* unlike some so called 4th generation which can not exceed 17* AOA.

Composites also reduce overall reflection. It is 'stealthier' because of this as more low observable than usual. And yes, LCA stealth charateristics were studied extensively. It's not deisgned to be like a 'humming bird' in the sky but is generally a lot lower than usual.

It uses Y duct where Turbine blade reflection is almost Zero. This is a big advantage so far as visibility is concern.

 

[Guynextdoor2]

This is what it has achieved till date with limited flight envelope opened. It will betested for 10 G and certified for 8 to 9G. It has achieved AOA of 24* till IOC. Finally it will be certified for 28* unlike some so called 4th generation which can not exceed 17* AOA.




It uses Y duct where Turbine blade reflection is almost Zero. This is a big advantage so far as visibility is concern.

Since it doesn't have internal weapons bay it'll still be quite visible when flying with weapons.

So convinient rite? Do u even put ur braincells to understand why India took 2 decades, etc etc.

India today has money to invest in ints research unlike before. So dont tell what India can and cant on basis of 2,3 decades back. Hell, even chinese dint make a shit before 2000. All their achievements started to roll in 21st century.

Also, AMCA is medium and FGFA and Su-50 are Heavy Combat Planes.

WHY YOU ALWAYS COMPARE APPLES AND ORANGES?

That's a satandard troll approach. They'll compare AMCA and FGFA withotu knowing about medium and heavy fighters.

 

[HariPrasad]

Since it doesn't have internal weapons bay it'll still be quite visible when flying with weapons.



That's a satandard troll approach. They'll compare AMCA and FGFA withotu knowing about medium and heavy fighters.

Weapons shall certainly increase RCS but still it will remain one of the very low RCS plane.

 

[WAR-rior]

Someone tell me, For Heavy, 2 engines are a must in todays date and for Light, 1 engine.

For Medium Combat, what are the comparative figures that decide whether 2 or 1 engine will be sufficient. I mean, What power engine for what weight of the plane etc etc.

 

[Manticore]

ev

Nose cone issue ? reports/links/rumours?

 

[Dash]

Someone tell me, For Heavy, 2 engines are a must in todays date and for Light, 1 engine.

For Medium Combat, what are the comparative figures that decide whether 2 or 1 engine will be sufficient. I mean, What power engine for what weight of the plane etc etc.

Will this give you a fair Idea?

TWR or T/W ratio = (Max Thrust of Engine / (Empty Weight + (3.505 Tonnes of Fuel & Weapons, or only Internal Fuel)))
1.30 – Su-35S
1.29 – F-15K
1.26 – Su-27S
1.25 – Eurofighter
1.24 – Mig-35 (T/W = 1.45 during Emergency Thrust*)
1.23 – Su-27SK & J-11A
1.19 – Mig-29M/M2 (T/W = 1.39 during Emergency Thrust*)
1.19 – F-15C
1.18 – F-22A (T/W = 1.37 with Round nozzles?)
1.16 – Su-30MKK
1.16 – Rafale C
1.16 – F-35A
1.15 – Mig-29B (9-12)
1.14 – Su-30MKI
1.13 – Mig-29 (9-13), S, SD, SE & SM
1.11 – F/A-18E (F/A-18F: 1.09)
1.10 – Rafale M
1.10 – Mig-29 BM & SMT (T/W = 1.15 during Emergency Thrust*)
1.09 – F-16E Block 60
1.09 – Mig-29K (T/W = 1.28 during Emergency Thrust*)
1.09 – F-18C
1.09 – J-8III(or J-8C)
1.08 – F-35B
1.08 – F-14 B & D
1.06 – F-16C Block 52 (Block 50: T/W = 1.055)
1.05 – J-8IIm
1.04 – AV-8B+ Harrier II
1.03 – F-2A (F-2B: 1.02)
1.03 – JH-7
1.02 – F-16A Block 10
1.01 – F-35C
1.01 – J-8II & J-8IIb & J-8IId
1.00 – J-10A
1.00 – Harrier GR7A
0.99 – Su-34 & Su-32FN & Su-27IB
0.99 – Sea Harrier FA2 & FRS51
0.99 – F-16A Block 20
0.97 – Su-15T
0.95 – MiG-23 P, ML, MLA & MLD
0.94 – Gripen NG
0.94 – F-4E
0.94 – J-8
0.93 – Mirage 2000-5
0.93 – Su-15TM
0.93 – F-101B
0.92 – Harrier GR7
0.92 – E E Lightning F6
0.91 – F-16C Block 25
0.91 – Yak-28 I & P
0.91 – F-111F
0.91 – Su-24
0.90 – Su-15
0.88 – Mirage-2000 C & H
0.87 – F-14A
0.87 – Mig-23 MF & MS
0.87 – Su-24 M, MK & M2
0.86 – F-CK-1
0.86 – LCA (T/W = 0.91 during Emergency Thrust****)
0.86 – Su-9
0.84 – Su-11
0.84 – Su-17M
0.83 – Tornado F3 Air Defence Variant
0.83 – Tornado GR1
0.83 – Su-20
0.82 – JF-17 (T/W = 0.86 during Emergency Thrust*)
0.82 – Su-22
0.81 – Gripen A
0.81 – Su-7B
0.81 – F-20
0.80 – Gripen C
0.80 – Mig-27K
0.80 – Su-7BM
0.79 – Mig-21 Bis (T/W = 1.11 in Emergency Thrust mode**)
0.79 – JA-37 Viggen
0.79 – Mig-27
0.79 – Su-17M2
0.78 – Mig-23BN
0.78 – Su-7 BKL & BMK
0.78 – Javelin FAW MK9
0.77 – Mig-23S
0.77 – J-7IIIa
0.76 – Mig-27 D & ML
0.76 – Mig-23M(E)
0.76 – F-106A
0.76 – F-7MG & F-7BG & F-7PG & J-7E & J-7G (WP-7N: T/W = 0.69)
0.76 – Q-5D
0.75 – Kfir C.7
0.75 – Kfir C.2
0.75 – AJ-37 Viggen
0.75 – J-7III
0.74 – Mig-21SM
0.73 – Su-17
0.73 – Mig-21MF
0.73 – Su-17M3
0.73 – Mig-19S*** (MTOW T/W = 0.86)
0.72 – Yak-27K
0.72 – Su-17M4
0.72 – F-104G
0.71 – Mig-19P*** (MTOW T/W = 0.84)
0.71 – Mig-21PF
0.71 – Supermarine Scimitar F.1
0.71 – Cheetah C
0.70 – Mig-21M
0.70 – Su-25SM
0.69 – Jaguar GR1
0.69 – J-35F Draken
0.69 – Mig-21F
0.69 – Mig-21 F-13
0.69 – J-7II
0.69 – Su-25 or Su-25T
0.68 – F-105F/G
0.68 – Mirage 50
0.68 – F-7M(or F-7MP or F-7MB) & F-7P
0.67 – F-1
0.67 – F4D-1/F-6 Skyray
0.66 – Mirage F-1
0.66 – F-8P
0.64 – F-102A
0.63 – Sea Vixen FAW.2
0.63 – Su-25TM or Su-39
0.62 – Yak-27
0.61 – Yak-38M (TWR during STOVL/VTOL takeoff: 1.20)
0.61 – Mirage-5A
0.61 – J-32B Lansen
0.60 – A-4S1
0.59 – Mirage-III E & D
0.58 – Yak-38 (T/W during STOVL/VTOL takeoff: 1.16)
0.58 – IAI Nesher
0.58 – F-5E Tiger-II
0.56 – F-100D
0.56 – A-6E
0.55 – A-7E
0.51 – Super Étendard
0.50 – F3H-2 Demon
0.49 – A-10A
0.49 – F-11A
0.49 – AMX
0.47 – Étendard-IV M
0.46 – F-89D
0.46 – Super Mystère B.2
0.46 – Hunter F 6
0.45 – Marut Mk.1
0.43 – Yak-25
0.43 – F-94C/F-97A
0.43 – F9F-8/F-9J Cougar
0.41 – A-37B
0.37 – Mystère IVA
0.37 – FJ-4 Fury
0.36 – F7U-3M
0.34 – F-84F
0.33 – J-29F Tunnan
0.33 – P-80C
0.32 – Supermarine Attacker F.1
0.31 – F2H-3 Banshee
0.30 – Ouragan M.D.450B
0.30 – F3D-2 Sky Night
0.29 – Venom FB.1
0.29 – F-84G
Pure Interceptors
1.30 – Mig-31M
1.30 – Mig-31BM
1.28 – Mig-31B
1.27 – Mig-31FE
1.27 – Mig-31E
1.22 – Mig-31
1.21 – Mig-25M
1.00 – Mig-25 P & PD
0.93 – Mig-25BM
0.74 – Tu-128

 

[sudhir007]

PICTURES: India’s Tejas receives initial operational clearance

The Mk 1 variant of Hindustan Aeronautics Ltd (HAL) Tejas light combat aircraft has received its initial operational clearance (IOC) from the Indian air force.

The "release to service" document was handed over to Indian air force chief N A K Browne by Defence Minister A K Antony in Bengaluru, on 20 December. The grant of the final IOC for the MK 1 variant paves the way for induction of the Tejas into operational service with the Indian air force. This is conditional on the Tejas obtaining its final operational clearance (FOC) by December next year.


The Indian air force, however, expects that only the Tejas Mk2 will meet the requirements envisioned in the air staff requirements set in 1985.

“The two primary design drivers already identified by us are the critical GE F-414 engine integration for enhanced thrust, along with perhaps a better intake design and improved maintainability of the platform,” says Browne.

All images Indian defence ministry

The Tejas Mk2 will also have improved helmet mounted interface functionality, a more efficient avionics system architecture, newer weapons, an upgraded electronic warfare suite and a retractable refuelling probe. The preliminary design review for the Mk2 is due to be completed in February next year and the first GE F-414 engines are to arrive in India by 2015.

A less-than-enthused air force accepted the Tejas in 2011, making certain concessions for what was termed as IOC-1. At the time, improvements were demanded by the service concerning combat performance, turnaround time and weapons fit, along with completion of wake penetration trials and all-weather clearance.

These have since been accomplished and with the granting of the IOC, Tejas Mk1 can attain angles of attack (AoA) of up to 22°. It features a revamped avionics and weapons system, with a fully integrated helmet mounted display sight (HMDS). An R-73E missile firing was also successfully demonstrated using the HMDS. The Tejas Mk1 can now fly without any telemetry support and a claimed radius of action up to 500km (310 miles) with a ferry range of 1,750 km (using 800/1,200 litre drop tanks).

The Indian air force will have its first Tejas Mk1 squadron based at Sulur, in Tamil Nadu, which is close to Bengaluru, where the aircraft is manufactured. The service has thus far committed to two squadrons (40 aircraft) of the Mk1.

HAL will build the first 20 to IOC standard (to be upgraded later to FOC standard) and the last batch will be to FOC standard. HAL is to deliver the first series production Tejas Mk1 (SP1) by March 2014. Production is planned at eight aircraft a year, to be increased to 16 a year, some years from now. The Indian air force has planned for four squadrons (80 aircraft) of the Mk2 variant, although no orders have been placed so far.

According to the Aeronautical Development Agency, a substantial amount of work for the FOC has already been completed. The major tasks involved are expansion of the flight envelope to 24° AoA, installation and demonstration of the in-flight refuelling system, addition of the Israeli Rafael Python and Derby air-to-air missiles, along with integration and trials of the 23mm (0.9in) cannon.

Despite a number of technical problems, the Tejas flight test programme has demonstrated an excellent safety record. More than 2,450 sorties across 11 aircraft have been flown since 2011, with 490 flights being flown this year alone, from air force bases at Jamnagar, Jaisalmer, Uttarlai, Gwalior, Goa, Leh and Pathankot.

The Tejas is a light weight, single engine, single seat, supersonic multi-role fighter and features a quadruplex digital fly-by-wire flight control system that was developed indigenously. The type is also being developed for the Indian navy for its carrier borne fighter requirements. The Tejas is only the second fighter aircraft to be developed by India, since the HAL Marut, which first flew in 1961.

 

[Guynextdoor2]

Weapons shall certainly increase RCS but still it will remain one of the very low RCS plane.

That I agree, the jet will have low RCS for sure

 

[rockstarIN]

According to the Aeronautical Development Agency, a substantial amount of work for the FOC has already been completed. The major tasks involved are expansion of the flight envelope to 24° AoA, installation and demonstration of the in-flight refuelling system, addition of the Israeli Rafael Python and Derby air-to-air missiles, along with integration and trials of the 23mm (0.9in) cannon.

 

[Guynextdoor2]

Someone tell me, For Heavy, 2 engines are a must in todays date and for Light, 1 engine.

For Medium Combat, what are the comparative figures that decide whether 2 or 1 engine will be sufficient. I mean, What power engine for what weight of the plane etc etc.

Twin engines are actually a norm for an additional reason- if one engine flames out/shuts down, the plane can land on the other. In general sense most medium class aircraft and upwards have had twin engines because of this. I think as far as western jets are considered, the first time a twin engine was rejected in favor of a single one was with the F 16 (a single engine which defeated the twin engine cobra that later evolved into F18) . Here the prior history with the engine meant that the USAF was convinced with it's reliability and so were ok with doing away with the twin engine config. A reliable single engine is simpler, easier to maintain and significanly cheaper.

I believe one of the advantages of the EFT if India had decided to go for it was that EFT engine could be added to LCA without major modifications (maybe mid life refit onwards?) and that two of those could power AMCA.

This is what it has achieved till date with limited flight envelope opened. It will betested for 10 G and certified for 8 to 9G. It has achieved AOA of 24* till IOC. Finally it will be certified for 28* unlike some so called 4th generation which can not exceed 17* AOA.

It uses Y duct where Turbine blade reflection is almost Zero. This is a big advantage so far as visibility is concern.

You mean JFT can't cross 17* AOA? Seriously? I haven't been paying attention with all the modi bashing going on