LCA Tejas Mk1 & Mk1A - News and discussions

Can't this drag be reduced by the application of supercritical airfoil so that there is no need of afterburner at all or even then little bit of afterburner is required?
Yes, it can be done but the drag rise due to compressability will still be there. All we can do is that we reduce this transonic regime. I developed an airfoil which does it for my own MSA.
 
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Since one wingtip(below) pylon would have ASPJ pod, it makes sense to have 2 ASRAAMS in a twin-rake configuration on the other side.
why not carry the ASPJ on the left intake pylon where they attach EO/IR pod. IMHO, the best set up for LCA MK-1A will be to have 3xD/Ts, one each on the centerline, and middle wing pylons. ASPJ on left intake pylon, a triple mount for missiles on inner pylon with one Astra and two ASRAAM and just one Astra on outer most wing pylon. This will allow LCA to carry 4xBVRAAM+2xASRAAM+ASPJ without compromising on range and endurance.
 
why not carry the ASPJ on the left intake pylon where they attach EO/IR pod. IMHO, the best set up for LCA MK-1A will be to have 3xD/Ts, one each on the centerline, and middle wing pylons. ASPJ on left intake pylon, a triple mount for missiles on inner pylon with one Astra and two ASRAAM and just one Astra on outer most wing pylon. This will allow LCA to carry 4xBVRAAM+2xASRAAM+ASPJ without compromising on range and endurance.
Does ASPJ on the left intake pylon will have the same angular 360° coverage as the planned left 'below wing-tip pylon'? If yes then I hope someone from IAF reads this as this configuration that you're suggesting makes perfect sense.

Here is the current planned position:

Screenshot_20240413-152728_Chrome.jpg


Image source: Bharat Rakshak Forum
 
Does ASPJ on the left intake pylon will have the same angular 360° coverage as the planned left 'below wing-tip pylon'? If yes then I hope someone from IAF reads this as this configuration that you're suggesting makes perfect sense.

Here is the current planned position:

View attachment 32994

Image source: Bharat Rakshak Forum
Yes it will have better coverage than what is shown in the picture. This one on the left wig outer pylon will get blanked by the loads on the right wing.
 
All the new tech is for 2035. In India, we could see a GaN radar service entry before 2028 on the MKI. We already know the EW suites on LCA Mk1A and MKI MLU will be GaN. And LCA Mk2 will also have GaN by 2031 or so.

So Indian jets will be half a generation ahead in terms of hardware before 2030. And by the time XG is introduced, we could also be in the next phase of avionics with the final phase of MKI MLU and LCA Mk2 alongside AMCA with similar grade of avionics as XG.

The Indian industry is set to overtake the French industry at a rapid pace. So the only thing the French have right now is a 5-10 year maturity advantage over India.

MRFA as well would see Rafale participating with GaAs while a few competitors like the Typhoon can enter with GaN.
Spectra will be fitted with GaN well before. Maybe already today.
It's only a money problem in the french case. It's not impossible the F4 for UAE will be natively with GaN radar, as money is not a problem for them and because as seen with Mirage 2000 they always want the best of the best (-9 variant).
 
Spectra will be fitted with GaN well before. Maybe already today.
It's only a money problem in the french case. It's not impossible the F4 for UAE will be natively with GaN radar, as money is not a problem for them and because as seen with Mirage 2000 they always want the best of the best (-9 variant).

Possibly. I hope it does, at least for MRFA. But it's not at the same level as the XG.
 
@lx111, Mig-21 has biconic movable supersonic Intake which is good for speeds above Mach 2.5. In the initial testing of Mig-21 as a prototype, the aicraft had hit even Mach 2.6. So please educate yourself about intake designs. Calling Mig-21 intake a fixed intake shows how little you know about intakes.
He called Mig-21 fixed intake.... Thats wikipedia level info. Even wikipedia calls out how inlet cone is retracted for lower speeds in Mig-21.
 

MoD asks HAL to deliver 18 Tejas Mark-1A jets by next year


As the Indian Air Force (IAF) continues to operate with fewer fighter jet squadrons than mandated, the Ministry of Defence (MoD) has asked Hindustan Aeronautics Limited (HAL) to meet the delivery schedule of supplying 18 Tejas Mark-1A jets by March 2025.

In all, 180 Tejas Mark-1A jets are to be made by the HAL in two tranches over the next 10 years. These are to bridge the prevailing shortage and muster numbers due to phasing out of older jets from the IAF inventory.

The HAL — a Bengaluru headquartered company in which the MoD owns a majority stake — is yet to deliver even one jet of the first tranche of 83 ordered in February 2021 under a Rs 48,000-crore order. Deliveries were to commence three years after signing the contract, or by March this year.

In April, the MoD asked the HAL to submit its commercial bid for producing 97 Tejas Mark-1A jets in addition to the 83 already ordered, taking the number to 180.

In March, Tejas Mark-1A carried out its first flight. “It was a successful sortie with a flying time of 18 minutes,” the HAL had then said.

The MoD, after a review meeting, has asked the HAL to meet the delivery deadline of 18 jets by March 2025. Sources say the HAL is banking on getting its new production line at Nashik on track by November to shore up the numbers.

The HAL has faced some supply chain disruption which is being sorted. The production of parts and assemblies for the jets has been outsourced to suppliers. Sources say the MoD and HAL are serious about meeting the contract target of 18 jets by March 2025.

The criticality of adding more fighter jets stems from the fact that the IAF presently has 31 squadrons (16-18 planes each) of fighter jets against the mandated number of 42 to handle a collusive two-front threat from Pakistan and China.

Over the next one year, all (two) squadrons of the Soviet-era MiG 21 fighter jets will retire. The Jaguar, MiG-29 and Mirage 2000 jet fleets — all inducted in phases during the 1980s — are slated to retire in batches beyond 2029-30. These four types of jets are about 250 in number and are presently operating on an extended life cycle.

As per plan, for the next 14-15 years (till 2038-39) starting this financial year, India needs to indigenously produce some 390 fighter jets for the IAF.

The IAF already has 40 Tejas Mark1 jets. Tejas Mark-1A is the improved version of the aircraft.
 
Sources say the HAL is banking on getting its new production line at Nashik on track by November to shore up the numbers.
If HAL commissions its new production line next November, it will produce the first Mk1a LCA in November 2027 at the earliest. It is therefore likely that HAL will have produced fewer than 10 aircraft by March 2025.
 
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If HAL commissions its new production line next November, it will produce the first Mk1a LCA in November 2027 at the earliest. It is therefore likely that HAL will have produced fewer than 10 aircraft by March 2025.

24/year is already operational. The Nashik one became operational last year, and will deliver the first jet in 2025.

The Nashik line can be further expanded.
 
If HAL commissions its new production line next November, it will produce the first Mk1a LCA in November 2027 at the earliest. It is therefore likely that HAL will have produced fewer than 10 aircraft by March 2025.
Nasik facility will produce 1-2 airframes this FY. This FY, 18 airframe is possible. From next FY they will deliver 24 per year. They are planning to fully deliver current order of 84 by FY 2027-28.

Chairman interview :

24/year is already operational. The Nashik one became operational last year, and will deliver the first jet in 2025.

The Nashik line can be further expanded.
No, Nasik will be operational from November only. Check above interview.