LCA TEJAS MK1 & MK1A: News and Discussion

Chandragupt Maurya

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I did a simple calculation to give a rough estimate
Current range of IOC Tejas = 1850 km
Fuel carried by IOC Tejas = (1200 + 800) Litres = 2000 Litres
Adiitional fuel in FOC Tejas = 725 liters
So range of FOC Tejas = { (1850/2000 * 725) + 1850} = 2520.625 km

So the new range of FOC Tejas is 2520.625 km (excluding other factors like weight Drag friction etc)
 

johnq

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I did a simple calculation to give a rough estimate
Current range of IOC Tejas = 1850 km
Fuel carried by IOC Tejas = (1200 + 800) Litres = 2000 Litres
Adiitional fuel in FOC Tejas = 725 liters
So range of FOC Tejas = { (1850/2000 * 725) + 1850} = 2520.625 km

So the new range of FOC Tejas is 2520.625 km (excluding other factors like weight Drag friction etc)
From what I've heard, it's in excess of 3000 km with external fuel tanks, when flown at optimal altitude. There are reasons why the range has so far been underestimated. The Tejas was still not flying at an optimal altitude for the best fuel economy earlier (aircraft get better fuel economy when cruising at higher altitude up to 13 km or so). Also, the GE engine has turned out to be very fuel efficient. Plus they have made certain aerodynamic refinements which have also improved fuel economy, and increased range as a result.
 

cannonfodder

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Remember that Ferry range is 2500km+. More important parameter is combat range of around 500km. But that is again dependent on payload or config.
 

Bleh

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I did a simple calculation to give a rough estimate
Current range of IOC Tejas = 1850 km
Fuel carried by IOC Tejas = (1200 + 800) Litres = 2000 Litres
Adiitional fuel in FOC Tejas = 725 liters
So range of FOC Tejas = { (1850/2000 * 725) + 1850} = 2520.625 km

So the new range of FOC Tejas is 2520.625 km (excluding other factors like weight Drag friction etc)
M8 it isn't that simple... The existing 725lt drop tank is not drag optimised and overall it only adds 100NM extra range. That's why it was not used.
It'll soon be replaced by a 710lt one that'll add more than 200NM.
 

Chandragupt Maurya

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M8 it isn't that simple... The existing 725lt drop tank is not drag optimised and overall it only adds 100NM extra range. That's why it was not used.
It'll soon be replaced by a 710lt one that'll add more than 200NM.
200NM means 370.4 km extra range so range of FOC Tejas should become (1850 + 370.4)km = 2220.4 KM
 

vishnugupt

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Range of Tejas Mk1A should increase further
What Radar is used in Tejas FOC AESA or PESA ?
You seem to be a quite innocent guy. Must be in early twenties who want to live his fantacy more than reality. Please don't take it otherwise. I respect your views though some of are little weird.
By the way, Tejas IOC and FOC use same Radar.
 

Chandragupt Maurya

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You seem to be a quite innocent guy. Must be in late twenties or early thirties who want to live his fantacy more than reality. Please don't take it otherwise. I respect your views though some of are little weird.
By the way, Tejas IOC and FOC use same Radar.
Means ELTA 2052 is still not ready ?
And what is the name of radar used in Tejas IOC and FOC ?
 

vishnugupt

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Means ELTA 2052 is still not ready ?
And what is the name of radar used in Teja IOC and FOC ?
It is ready but they are not planned for IOC/FOC. They are planned for MK1a only.

By the way, Being a defence fan how did you miss such obvious information?
 

rockrocky

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Means ELTA 2052 is still not ready ?
And what is the name of radar used in Tejas IOC and FOC ?

The first 20 production Tejas Mk 1 are equipped with a hybrid version of the EL/M-2032 radar. It features look-up/look-down/shoot-down modes, low/medium/high pulse repetition frequencies (PRF), platform motion compensation, doppler beam-sharpening, moving target indication(MTI), Doppler filtering, constant false alarm rate (CFAR) detection, range-Doppler ambiguity resolution, scan conversion, and online diagnostics to identify faulty processor modules.[162] The Tejas Mk 1A will be equipped with an improved version of the EL/M-2052 AESA radar being developed jointly by Elta and HAL.[175]
 

The Maverick

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Amazing picture
PITY its just a dream & concept AND decades away from reality if at ALL.
why my doom & GLOOM

We are still sitting on a backsides REFUSING TO SIGN a deal for 83 mark 1a fighters for over a year
Why .. because since 2016 we have built and inducted barely 20 tejas mark1 = 5 a year
We work at a snails pace AND our decision making and signing and paying hard currency is slower than the snails pace of manufacturing

Mark 2 will take 5 years to sign for license building of 6 prototypes ie they wont be here until 2030
A further 5 years to form a single sqaudron in the ai ier 2035

THATS 15 YEARS AWAY

Guranteed the airforce get desperate and ask for 40+ more rafales by 2025-2026
AND KNOWING our dhoti wala ministers THEY will sign for 40 mig29pg instead at half the cost

YOU JUST KNOW ITS HAPPENING THAT WAY
 

Trololo

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Amazing picture
PITY its just a dream & concept AND decades away from reality if at ALL.
why my doom & GLOOM

We are still sitting on a backsides REFUSING TO SIGN a deal for 83 mark 1a fighters for over a year
Why .. because since 2016 we have built and inducted barely 20 tejas mark1 = 5 a year
We work at a snails pace AND our decision making and signing and paying hard currency is slower than the snails pace of manufacturing

Mark 2 will take 5 years to sign for license building of 6 prototypes ie they wont be here until 2030
A further 5 years to form a single sqaudron in the ai ier 2035

THATS 15 YEARS AWAY

Guranteed the airforce get desperate and ask for 40+ more rafales by 2025-2026
AND KNOWING our dhoti wala ministers THEY will sign for 40 mig29pg instead at half the cost

YOU JUST KNOW ITS HAPPENING THAT WAY
The 83 Mk1A contract will be signed before end of the year. Mk2 first flight is possibly in 2022-2023. They won't take the TD route and will go directly via PV route. Mk2 serial production will start 2025. This assumes first flight and basic performance parameters are proven quickly, thus giving lead time to contract signature. Weapons integration can happen in a spiral fashion. Out of the box it will come with:

1> Standard short range A2A missile (Astra IR or ASRAAM or Python5 or R73's latest variant)
2> Standard long range A2A missile (Astra Mk1 and Astra Mk2)
3> Standard LGB (Paveway series or PGHSLD munition)
4> Standard standoff munition (SAAW and /or SPICE)

Everything else can be tested and bolted on iteratively. Most weapon integrations these days are more of a software update, because the mechanical and electrical connections are standard since open architecture mission computers came into the picture.

Lastly, have faith in current leadership. They are good, and have their hearts in the right place. They are aware of their capabilities, priorities, and limitations.
 

Dessert Storm

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Amazing picture
PITY its just a dream & concept AND decades away from reality if at ALL.
why my doom & GLOOM

We are still sitting on a backsides REFUSING TO SIGN a deal for 83 mark 1a fighters for over a year
Why .. because since 2016 we have built and inducted barely 20 tejas mark1 = 5 a year
We work at a snails pace AND our decision making and signing and paying hard currency is slower than the snails pace of manufacturing

Mark 2 will take 5 years to sign for license building of 6 prototypes ie they wont be here until 2030
A further 5 years to form a single sqaudron in the ai ier 2035

THATS 15 YEARS AWAY

Guranteed the airforce get desperate and ask for 40+ more rafales by 2025-2026
AND KNOWING our dhoti wala ministers THEY will sign for 40 mig29pg instead at half the cost

YOU JUST KNOW ITS HAPPENING THAT WAY
It definitely is an amazing pic.

The pity's on you. Reason.

The preparatory activities for MK1A are well underway. Receiving a formal order will give a moral boost to the program. Even if the deal was signed in 2019, the delivery schedule won't change by very much.

The pace is weak because this is the first one in a long time. Eco-system needs to be created, so do the processes. It's not a cookie factory. Yes they are slower than normal but you also see them transitioning from trying to make everything themselves to an integrator role.

Your extrapolations about time lines stem from your inability to read the changes going around. The recent reports on aero engines is not for nothing. Engines coming in 2026-27 means AMCA is on schedule. Learnings of Tejas, MWF would go into AMCA. None of the IAF programs before AMCA would be late.

The Airforce might get desperate because of retiring Mig21s. Those can be replaced by more MK1As. More demand means more production lines.

You seem to have misread the current dhoti waalas. They have displayed acumen to do things which others could not in decades and centuries. Orders (both given and in pipeline) for indigenous products are at a record high (barrel fiasco notwithstanding).

GOI should go in for 15 addl Mig 29s in the Russian storage, if they are ready to mount the AESA radars on the 21 already ordered.

YOU CAN KEEP ON HAVING YOUR BAD DREAMS.
 

Chandragupt Maurya

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It definitely is an amazing pic.

The pity's on you. Reason.

The preparatory activities for MK1A are well underway. Receiving a formal order will give a moral boost to the program. Even if the deal was signed in 2019, the delivery schedule won't change by very much.

The pace is weak because this is the first one in a long time. Eco-system needs to be created, so do the processes. It's not a cookie factory. Yes they are slower than normal but you also see them transitioning from trying to make everything themselves to an integrator role.

Your extrapolations about time lines stem from your inability to read the changes going around. The recent reports on aero engines is not for nothing. Engines coming in 2026-27 means AMCA is on schedule. Learnings of Tejas, MWF would go into AMCA. None of the IAF programs before AMCA would be late.

The Airforce might get desperate because of retiring Mig21s. Those can be replaced by more MK1As. More demand means more production lines.

You seem to have misread the current dhoti waalas. They have displayed acumen to do things which others could not in decades and centuries. Orders (both given and in pipeline) for indigenous products are at a record high (barrel fiasco notwithstanding).

GOI should go in for 15 addl Mig 29s in the Russian storage, if they are ready to mount the AESA radars on the 21 already ordered.

YOU CAN KEEP ON HAVING YOUR BAD DREAMS.
The slow procurement process will ultimately lead to failure of MMRCA in the favor of Tejas MK2 and TEDBF/ORCA
 

Dessert Storm

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The slow procurement process will ultimately lead to failure of MMRCA in the favor of Tejas MK2 and TEDBF/ORCA
I'll call that a welcome failure if the MK2, TEDBF/ORCA are able to hold their approximate timelines. MMRCA is dead, Long Live the Indian MMRCA.
 

Chandragupt Maurya

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I'll call that a welcome failure if the MK2, TEDBF/ORCA are able to hold their approximate timelines. MMRCA is dead, Long Live the Indian MMRCA.
Yes MMRCA is dead mark my words it will never get completed , It’s better to get Tejas MK2 and TEDBF/ORCA instead of doing this MMRCA drama ,
I support Tejas also because Our indigenous aircrafts are less prone to sanctions in case of war with Pakistan
 

garg_bharat

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we,are about to get our arses smacked by China.
Pakistan is openly fighting a asymmetrical war with us for two decades
we are flying 200 junk mig21 and jaguar fighters which are utterly useless even against Paki f16 and thunders never mind 90
percent of plaaf.
We have a near combat ready indengious platform with area radar option and weapons from.israel and a proven western engine . yet for one year we sit on a area scratching our balls thinking should we sign the deal for a paltry 83 fighters costing 5 billion dollars
we call ourselves a regional power we are indecisive incompetent and frankly meek and weak this us why China is annexing our land and why a basket case beggar nation like Pakistan needles us constantly
Stay positive.
Fighting in Ladakh is not easy for any army. Time and again it has been proven that infantry is quite potent in mountains.

It will be India's will to fight rather than fancy weapons that will determine the outcome.

Plus there is a secret factor.
 

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