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

[sudhir007]

 

[sudhir007]

Met these 2 unsung heroes who were tasked to paint the drop tanks of LCA at HAL facility recently.

 

[Stag112]

@MilSpec

Its theoretically possible to integrate R77 but there is a cost part in terms of external needs.. That is in spite of successful integration of R73E with Tejas.

Let me explain it.. A little long post.. (Pls dont mind)

What i understand initially in 2007 when LCA first fired R73 E, it was a un-guided autonomous mode launch
View attachment 295557

Then later in 2010, a more successful firing did happen for R73E

TEJAS SUCCESSFULLY LAUNCHES CLOSE COMBAT MISSILE


What actually Tejas did was best described by Air Marshal MSD Wollen who was also HAL chairman from 1984 to 1988

The entire avionics and weapon systems are con-figured around three 1553 B data bus. Mission oriented computation/flight management is through a 32 hit computer. Information: from sensors (e.g. multi-mode radar, IRST, radar/laser/missile launch-warning receivers); from the inertial navigation System with embedded GPS; from targeting pod (FLIR, laser designator) are presented to the pilot on a head-up-display and head-down-displays. A helmet mounted target designator steers radar and missile seekers for early target acquisition (during a 'close-in' air-to-air engagement with a Vympel R-73 missile, currently the best dog-fight' missile in the world). Laser guided bombs and TV guided missiles, require a pilot to initially 'zero-in' the laser designator or missile-mounted TV camera, on the ground target. Considerable engineering effort and expertise is necessary to achieve avionics-weapon integration and to prove the integration by live trials.

Featured Articles | Tejas - India's Light Combat Aircraft

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From this what i understand is

• The initial launch in 2007 was not with the radar MMR on board and target was to fire after fitting it
• In 2010 tests, MMR was on board but integration was needing 3rd party interface as Radar is Israeli 2032 and missile is Russian R73E
• Now via 1533B data bus, this integration was seamlessly done as confirmed by MSD Wollen and allowed R73E to be fired.
• Bear in mind R73E is a CCM or at best WVR missile.
• But R77 is a BVR missile which will require a mid course guidance via a datalink
• In this case of R77, we do require to use a datalink pod like the ones used in Russian jets which uses a big radar pod on centerline for handling all missiles for their jets (old and new)

See here in these 2 pictures

The one on the Su-25TM is the 3-CM waveband Kopyo-25 radar pod for use with the R-77 and other missiles.

A closer picture of the pod in centerline

• This kind of POD structure does not work well for Tejas which is already looking to reduce such extra packages and use every available hardpoints for either fuel or weapons. Consuming a centerline POD for just R77 is way too much wastage of space and utility.
• The other way is to use the original source code interfacing via the 1533B Bus and let the missile being guided by Israeli radar.. This is where there are issues
  • First its difficult to get codes from Russian side not just bcz of only monetary reason.
  • Secondly, Russia believes such codes would then lead to issues, as such codes can help western (read american via Israel) to devise counter measures for their missiles.
  • In a manner these codes and measures are their crown jewels/ prized possession and thus they dont want to part it with anybody but are comfortable via usage of a external pod method.

Then what exactly happened in R73E case?

• The R73E firing is well explained by MSD Wollen above of what was use and how.
  • A R73 bcz of being a CCM it uses Lock On Before Launch (LOBL) need via the Helmet mounted Designator and basic 1533B Bus for radar cues when its still in Pylon as hinted by MSD Wollen.
  • The Same R73 in Lock On After Launch Mode or LOAL mode, its generally just launched in the direction of the bogey and its IR seeker takes over post launch and directs the missile towards the target.
  • This LOAL mode was what has been tested in weapons trial in 2010 and subsequently in exercises

• Thats why it makes sense to use Israeli radar 2032 and later 2052 with Derby/i Derby ER for BVR and Python 5 for CCM
• The Astra missile with our own Ku Bank seeker will be able to do the same as iDerby-ER due to everything including codes with us which we can then utilize via 1533B bus to successfully mate it with the 2032/2052
• The present Astra would face a similar need of a POD based guidance due to it having a Russian seeker as 1533B interface wont allow mid course guidance.

@Abingdonboy @Vauban @Taygibay @AUSTERLITZ

The real question is - what are you doing on PDF? Lending credence to a propaganda tool?

#indiabehindisis

 

[sathya]

SP2 , SP3, SP4 with cobham nose cone and refuel probe

Will fly in Iron Fist march 18 ,demonstrating FOC capabilities.

Fulfilling 4 samples obligation in financial year 2015-16 .



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in my dreams

 

[PakEye]

Met these 2 unsung heroes who were tasked to paint the drop tanks of LCA at HAL facility recently.

Good paint job.

 

[Stag112]

Good paint job.

Thank you. We always appreciate expert opinion.

 

[Trisonics]

Thank you. We always appreciate expert opinion.

that was very funny!!!!

 

[surya kiran]

Thank you. We always appreciate expert opinion.

You naughty boy

 

[Bheemsen]

This might be posting on wrong thread but dose anyone have info about jaguar Darin 3 upgrade status.

 

[DesiGuy1403]

expert opinion

Please STOP applying it to your brain!

 

[rockstarIN]

ndia's Tejas Aircraft Integrated With Russian, US missiles
Source : Our Bureau ~ Dated : Thursday, March 10, 2016 @ 01:37 PM
Views : 67 A- A A+

India's Light Combat Aircraft Tejas

India’s indigenous Light Combat Aircraft (LCA), the Tejas will be integrated with the US- and Russian-origin missiles and is expected to fly this month during the Indian Air Force show.

The jet is currently undergoing final operational clearance and will soon be inducted into the Indian Air Force (IAF).

The IAF has confirmed that the Tejas jet will be flying at the IAF exercise, ‘Iron Fist-2016’, in Rajasthan on March 18, Tribune India reported.


The Tejas will fire the beyond visual range (BVR) air-to-air missile, the R-73 of Russian origin, and the precision laser-guided bomb Griffin missile, produced by US company Raytheon.

Air Marshal B.S. Dhanoa, Vice-Chief of the IAF, was quoted as saying today that the LCA shall do both tasks in a single flight.

The exercise will display the ‘capability to punish’, said the IAF Vice-Chief.

LCA also features new quartz radome radar from Cobham, UK. The radar was flight-tested in the last week of February and is expected to increase the radar range to 80 km and beyond.

Meanwhile, the Ministry of Defence has decided to locally produce 106 upgraded Light Combat Aircraft

When did we purchase this stuff??

 

[W@rwolf]

precision laser-guided bomb Griffin missile, produced by US company Raytheon.

Griffin LGB from IAI

 

[PARIKRAMA]

ndia's Tejas Aircraft Integrated With Russian, US missiles
Source : Our Bureau ~ Dated : Thursday, March 10, 2016 @ 01:37 PM
Views : 67 A- A A+

India's Light Combat Aircraft Tejas

India’s indigenous Light Combat Aircraft (LCA), the Tejas will be integrated with the US- and Russian-origin missiles and is expected to fly this month during the Indian Air Force show.

The jet is currently undergoing final operational clearance and will soon be inducted into the Indian Air Force (IAF).

The IAF has confirmed that the Tejas jet will be flying at the IAF exercise, ‘Iron Fist-2016’, in Rajasthan on March 18, Tribune India reported.


The Tejas will fire the beyond visual range (BVR) air-to-air missile, the R-73 of Russian origin, and the precision laser-guided bomb Griffin missile, produced by US company Raytheon.

Air Marshal B.S. Dhanoa, Vice-Chief of the IAF, was quoted as saying today that the LCA shall do both tasks in a single flight.

The exercise will display the ‘capability to punish’, said the IAF Vice-Chief.

LCA also features new quartz radome radar from Cobham, UK. The radar was flight-tested in the last week of February and is expected to increase the radar range to 80 km and beyond.

Meanwhile, the Ministry of Defence has decided to locally produce 106 upgraded Light Combat Aircraft

When did we purchase this stuff??
View attachment 297734

Bro in another thread i replied in the evening.. See this

INDIAN Tejas to fire US, Russian missiles at IAF show

Its not a good piece of journalism.. should have checked LGB is different from the same one with a more of ship based /air based missile system

 

[SRP]

HAL begins integration of mid-air-refueling probe on Tejas

Bengaluru, March 12: Engineers and technicians at Hindustan Aeronautics Ltd’s (HAL) LCA-Tejas Division have begun the extremely complex integration of the aerial refueling probe on to the Tejas fighter.

During a visit to the HAL facilities, Mathrubhumi witnessed the fitment tests on the Limited Series Production-8 (LSP-8) variant of Tejas. The air-to-air probe, supplied by UK-based Cobham, is being fixed in front of the canopy and on the right side of the aircraft.

Similar to Sukhoi, Tejas too will have a fixed aerial refueling probe.

“The modification of LSP-8 is under progress. The structural modification for the attachment and load is under way. We also have to undertake fuel system and software modifications,” says V Sridharan, General Manager, LCA

The pressure refueling process on LSP-8 and SP-1 have already been demonstrated. Last year, the naval LCA (NP2) underwent ‘hot refueling’ at HAL facilities. Both were mandatory tests ahead of fixing the fuel probe.

“Once the probe is fixed and structural integration is done, then we will have the ground tests, which will be followed by flight trials. The efficiency of the Flight Control System will also be tested,” says Sridharan.

According to him, HAL has the expertise in fixing mid-air fuel probes on Jaguar trainers. The work share for this critical integration work is being split between Aeronautical Development Agency (ADA), Aircraft Research and Design Centre (ARDC), Tata Advanced System Laboratories (TASL) and LCA Tejas Division.

“TASL is been entrusted with tool design and tooling supply, ADA is the programme agency responsible for production, structural design and software,ARDC has been entrusted with structures and systems, while we (LCA-Teas Division) are the final integration agency,” says Sridharan.

Flight trials to be completed next year

HAL hopes to complete the modifications on Tejas LSP-8 by May this year so that the flight trials could begin in June. As per the current schedule, by March 2017, HAL needs to complete the testing and flight trials ahead of certification.

for more........

HAL begins integration of mid-air-refueling probe on Tejas - India

 

[Abingdonboy]

Similar to Sukhoi, Tejas too will have a fixed aerial refueling probe.

He must mean Mirage, the SUs have retractable IFR probes.

Flight trials to be completed next year

HAL hopes to complete the modifications on Tejas LSP-8 by May this year so that the flight trials could begin in June. As per the current schedule, by March 2017, HAL needs to complete the testing and flight trials ahead of certification.

What?? So FOC has been pushed back another 12 months??


@PARIKRAMA @Ankit Kumar @anant_s @Water Car Engineer @MilSpec @sathya @sudhir007