HAL Tejas | Updates, News & Discussions

[ganimi kawa]

Adding a probe is not a big thing and LCA can be retrofitted with a probe, however even cobham said they can retrofit LCA with their probe and they can do by 2013-14 only. So that means, it will take time. LCA is a very compact aircraft and everything is tightly packed. so you need time to add a probe too.

There are no official statement that says what type of probe will be added and when. So Iam bit skeptical.




Sure even I want to see.

Ok! I'll try and revise the whole sequence of events in relation to IFR probe on tejas.


1. Tejas has all the adequete plumbing and attachments for a fixed IFR probe. There have been many images of tejas with a Fixed probe like that on Mirage 2k.

This was what ADA had planned and was supposed to put this feature from PV-3 (or 2) onwards. This was mentioned in AI 05.

These are CAD images from ADA showing the probe and the plumbing arrangement.

2. However, the plan was postponed due to weight and other issues. It was decided that early LSPs will start this process.

The probe has been developed and tested on jaguars.

3. By the time, LSPs started IAF wanted the probe to be retractable to minimize RCS and drag issue. This was impossible to develop in such a short time as the space is premium in a tightly packed craft like tejas.

It is here that Cobham enters. They will develop the retractable probes for both mk1 and 2.This is independent from mk2 program.

“We will develop and design a retractable refueling probe,” Griffiths says. “LCA is a tightly packed aircraft ... Unfortunately, we’re later in the design period. We will roll out the retractable [version] by 2013-14.”

4. So now, the plan is that ADA will demonstrate IFR with fixed probe on few of the SP aircrafts for tejas to get it's FOC by 2012.

Retrctable IFR probe will be out by 2013. And will be retrofitted on both mk1 and mk2.

 

[Dash]

Ok! I'll try and revise the whole sequence of events in relation to IFR probe on tejas.


1. Tejas has all the adequete plumbing and attachments for a fixed IFR probe. There have been many images of tejas with a Fixed probe like that on Mirage 2k.

This was what ADA had planned and was supposed to put this feature from PV-3 (or 2) onwards. This was mentioned in AI 05.

These are CAD images from ADA showing the probe and the plumbing arrangement.

2. However, the plan was postponed due to weight and other issues. It was decided that early LSPs will start this process.

The probe has been developed and tested on jaguars.

3. By the time, LSPs started IAF wanted the probe to be retractable to minimize RCS and drag issue. This was impossible to develop in such a short time as the space is premium in a tightly packed craft like tejas.

It is here that Cobham enters. They will develop the retractable probes for both mk1 and 2.This is independent from mk2 program.




4. So now, the plan is that ADA will demonstrate IFR with fixed probe on few of the SP aircrafts for tejas to get it's FOC by 2012.

Retrctable IFR probe will be out by 2013. And will be retrofitted on both mk1 and mk2.

Thanks for that Update Ganimi -
Even I did some research on that and found out that the earlier (in the 90s) models of Tejas had IFR on it.

However we dont see any sign if it, Lets just hope that they fit it, I was thinking the Naval LCA to have an IFR, even that one has come bald.

So, now I think do theey really have plans or just waiting for Mk2.

 

[trident2010]

DRDO hands over Indian Integrated Life support technology for Tejas fighter aircraft Project


DRDo today handed over an integrated life support system (ILSS) for fighter aircraft is a state of the art technology for the IAF’s LCA Tejas fighter aircraft project. ILSS enables a fighter pilot to venture to the limits of the aircraft capability in terms of flight altitudes and G-forces. This technology had hitherto been the hallmarks of the few highly advanced countries. Now Defence Bioengineering & Electro medical Laboratory (DEBEL) Bangalore, under DRDO, has taken a lead in this technology that, to start with, will go into Tejas aircraft. The engineering model of ILSS prototype has been rolled out from DEBEL Bangalore by Dr W Selvamurthy, Distinguished Scientist and Chief Controller R&D (Life Sciences) of DRDO. The ILSS consisting of 12 Line Replacement Units (LRUs) has been handed over to Dr PS Subramanyam, Distinguished Scientist, Program Director-CA and ADA, for fitment and further trials.

ILSS essentially performs the tasks of protecting the pilots against the extremes of altitudes, severe G forces imposed during aerial combats and also provide breathing 100% oxygen in the case of ejection from aircraft. The On-board Oxygen Generation System (OBOGS) keeps the pilots’ oxygen status always to the sea level condition despite being at high altitudes. The OBOGS enables the aircraft to undertake long endurance task, free from the burdens of recharging the Oxygen gas. The Demand Oxygen Regulator (DOR) ensures that the breathing gas is delivered as per requirement at various altitudes and also during anti-G straining maneuvers (AGSM) that the pilot undertakes during combat operations. The anti-G valve (AGV) renders adequate G-suit inflation pressure to prevent G-induced loss of consciousness (G-LOC). There is a unique electronic control unit (ECU) that ensures proper OBOGS functioning with changing altitudes, monitoring the ILSS and also activates the back-up system in the case of any failure. It is a unique technology that takes care of both single and dual pilot operations.

This important milestone could be achieved due to the untiring effort of the DEBEL scientists led by its Director, Dr VC Padaki with the guidance of Chief Executive of CEMILAC, Dr K Tamilmani and able support of the teams from ADA, HAL, RCMA(a/c), DGAQA, NFTC and IAM. L&T has played a big role as development partner to DEBEL in manufacturing of the ILSS. The ILSS at a later date, can also be customized to the needs of other Indian aircraft capable of long duration flights like MiG-29, SU-30, Mirage-2000 etc.



:: Bharat-Rakshak.com - Indian Military News Headlines ::

 

[sancho]

4. So now, the plan is that ADA will demonstrate IFR with fixed probe on few of the SP aircrafts for tejas to get it's FOC by 2012.

Retrctable IFR probe will be out by 2013. And will be retrofitted on both mk1 and mk2.

That's what I meant!

Btw, I hope they don't put the refueling probe at the nose section, because it already offers limited space only. A configuration like the Gripen would be the better idea and we could use the F16IN version too (although not in CFTs):


Gripen

F16IN

http://www.defence.pk/forums/1030723-post2358.html

 

[hellofriends]

do anyone have idea that naval lca has mid air refueling system or not. as i know lca airforce version has no these type of system.

 

[sathya]

how beneficial would life support system can give for a short range aircraft like tejas.
su mki would benefit the most .
in high G s you cannot pressurise the whole cabin to reduce G effect.
G suite would do that job.
guru s can shed light on this

 

[elite]

Tejas Cockpit Better Suits 'Taller' Pilots, Ergonomics Corrected LSP-5 Onward

The ergonomics of India's Light Combat Aircraft (LCA) Tejas cockpit better suit the Indian Air Force's tallest pilots, compared to pilots who are of 'low' or 'medium' height. In other words, the cockpit wasn't configured and designed with a democratic mix of height permutations. Identified as a problem last year, the LCA's cockpit ergonomics have been reconfigured -- the 'new' cockpit will feature for the first time on the fifth limited series production aircraft (LSP-5) that is expected to make its first flight any time now. While specifics are not available yet, the changes include placement/configuration of the HUD, multifunction displays and function selector panels.

Issues with the cockpit ergonomics first figured in conclusions drawn by the Defence Institute of Physiology & Allied Sciences (DIPAS) after it was instructed late last year to conduct an ergonomic evaluation of twin-seat trainer PV-5 cockpit. According to sources, a digital model of the Tejas cockpit along with various digital human models (DHM) of different height percentiles among IAF pilots were fed into an evaluation program called Jack. The three DHMs were 2.5th percentile, 50th percentile and 97.5th percentile representing the shortest, average and tallest IAF personnel. The eval threw up the fact that the existing cockpit design and man-machine interface was best suited to the third DHM. Changes were recommended through a detailed report along with a fresh digital cockpit model. The new cockpit is ostensibly now optimal for a larger percentile of IAF pilots.

 

[sathya]

India's Medium Combat Aircraft to achieve maiden flight 'in seven years'
India's indigenously designed twin-engine Medium Combat Aircraft (MCA) is scheduled to achieve its maiden flight within seven years, Dr S Prahlada, Chief Controller of...
08-Nov-2010
janes defense weekly

 

[sathya]

tejas mk 2 should achieve FOC before that..

 

[ganimi kawa]

Tarmak007 Alert: LSP-5 to fly any time now

The fifth platform from Tejas LSP block (LSP-5) will kiss the sky any time now. Team Tejas seems to have sorted out last-minute issues and the flight might take place any time now, weather-permitting. The flight is expected today...tomorrow...

GO TEJAS!

 

[marcos98]

LSP-4 had its first flight in June. LSP-5 now, the program is indeed moving full speed ahead.
way to go

 

[MST]

LSP-4 had its first flight in June. LSP-5 now, the program is indeed moving full speed ahead.
way to go

That's almost 5 months. Isn't that a lot of time?

BTW all the best for the LSP 5 first flight. Keeping fingers crossed

 

[Lord Of Gondor]

Guys,when in class i heard a fighter jet go above us.The sound was absolute music to my ears!Hope this is the LSP-5!I have also seen the tejas(i think it is tejas as no other delta winged platforms are near by)flying almost everyday!

 

[MAFIAN GOD]

India's Medium Combat Aircraft to achieve maiden flight 'in seven years'
India's indigenously designed twin-engine Medium Combat Aircraft (MCA) is scheduled to achieve its maiden flight within seven years, Dr S Prahlada, Chief Controller of...
08-Nov-2010
janes defense weekly

THAT MEANS AMCA WILL HAVE ITS FIRST FLIGHT BY 2018.
SO IAF WILL HAVE ATLEAST ONE SQUADRON BY 2025.

I THINK BY THE FIRST FLIGHT OF AMCA WE WILL INDUCT LCA MK-2.

 

[marcos98]

DRDO Delivers Life Support System For Tejas Pilots | AVIATION WEEK​

By Anantha Krishnan M.
Bengaluru

The Indian Defense Research and Development Organization (DRDO) has developed an Integrated Life Support System (ILSS) for fighter aircraft pilots, potentially adding India to a group of nations owning such technology. DRDO’s Bengaluru-based Defense Bioengineering and Electromedical Laboratory (Debel), which developed the ILSS,delivered the documents to Tejas program chief P.S. Subramanyam recently for fit and further trials.

“An ILSS for fighter aircraft is a state-of-the-art technology that enables a fighter pilot to venture to the limits of the aircraft capability in terms of flight altitudes and g-forces. This technology had until now been the hallmark of the few highly advanced countries. The first batch of ILSS will go into Tejas aircraft,” Debel Director V.C. Padaki tells Aviation Week.

In addition to Tejas, the ILSS can also be customized to the needs of MiG-29, Su-30 and Mirage 2000. The system helps protect pilots against the extremes of altitudes and severe g forces imposed during aerial combats, as well as providing for breathing 100% oxygen in the case of ejection from aircraft.

The On-board Oxygen Generation System (Obogs) keeps the oxygen status of pilots at sea-level condition despite being at high altitudes. “It enables the aircraft to undertake long-endurance tasks, free from the burdens of recharging oxygen. The Demand Oxygen Regulator ensures that oxygen is delivered as per requirement at various altitudes and also during ‘anti-g straining maneuvers’ that the pilot undertakes during combat operations. An anti-g valve renders adequate g-suit inflation pressure to prevent g-induced loss of consciousness,” explains Padaki.

There is an electronic control unit that ensures proper Obogs functioning with changing altitudes, monitoring the ILSS and activating the back-up system in the case of failure. This technology is used to take care of both single- and dual-pilot operations.

Tejas chief P.S. Subramanyam says that the system has come at the right time when the program is entering a crucial phase. “With the Dec. 27 deadline set for release to service of Tejas and so much of activities hovering around it, the ILSS has added yet another indigenous element to the Tejas program,” Subramanyam says.