The INs timeline for a 5G ship based fighter coincided with the (initial) retirement date set for MiG-29K which was 2032. They settled for 4.5G TEDBF only ADA promised to deliver it by 2026.
So why did the development stop ? Up until 2023 we had the project director TEDBF commit dates for first flight publicly. Since then we've had complete radio silence from ADA , IN & MoD.
ADA is reported to have explicitly told the IN at the time that it would build on the baseline TEDBF to create a 5G fighter. (Note that the current TEDBF design doesn't appear to be modular like say the KF-21)
As I said we don't have the final layout. Right now what we're doing is speculating. Has the TEDBF passed CDR & is the design frozen ? You yourself have pointed out to the various design changes on this very forum.
Surely it can't be that these weren't cleared by the IN. I'd go so far as to say it may have been demanded by the IN with ADA complying.
I'd say it was incumbent upon ADA to show the IN exactly how it planned to iterate the basic TEDBF into a 5G jet. An evolutionary roadmap with improvements like twin canted tails, blended levcons/tailed delta, nose chine, etc is what was needed.
And why do you suppose the ADA isn't complying with what the IN wants given you're framing it that way ?
That initiative should have come from ADA as the design bureau. The market (IN) clearly demanded it and ADA didn't address it. You could argue that ADA is not a commercial entity and hence could afford to do so and you'd be right.
Frankly I was under the impression the IN gives the design mandate to the ADA. It's for them to come up with an optimum design subject to approval of the IN .
If the latter isn't satisfied , it's incumbent on the ADA to come up with a design to the satisfaction of the IN unless there are genuine constraints , whatever be their nature , in which case both the agencies come together to work out a solution .
I agree that ADA and IN did carry our joint studies on a prospective 5G ship based jet. If a stealth airframe concept was developed for evaluation, it wasn't put out into the public domain.
If I'm not mistaken ADA decided against designing a 5th Gen FA exclusively for the IN given they didn't have resources to commit to the project given their commitment to the IAF for AMCA.
Since the IAF turned down the IN's request for joint development , the 4.5 Gen TEDBF was proposed which was accepted by the IN .
Later it was speculated that this 4.5 Gen TEDBF would evolve into a 5th Gen Stealth FA for the IN . Quite frankly I've yet to see any official confirmation of this development from either the IN or ADA or the MoD though I've seen chatter of this on X.
So it wouldn't be out of place to suggest that the entire premise is based on nothing but speculation.
The 4.5G TEDBF will yield no new design and dev skills that the ADA wouldn't already have acquired on the AMCA and Ghatak/ISUAV progs. It has already proven complex CTOL tech via the N-LCA mk1 prog.
Please refer to my comment above.
Moreover the need of the hour was an urgent replacement for the MiG-29K . I could extend this argument to what's the need for a 5th Gen FA in the IN ? For starters a 5th Gen FA is an offensive platform .
What's it going to be flown from ? Has the IAC-3 been cleared ? Even if it were cleared where do we deploy it ? The INs doctrine envisages guaranteeing maritime security from the Malacca Straits at the confluence of the Western Pacific Ocean & Indian Ocean at one end to the Bab el Mandeb & Straits of Hormuz at the other end & the Mozambique Channel at the Southern end.
In the light of this doctrine , where's the scope for a 5th Gen FA ? Let me elaborate my point. In order to project force into the SCS & ECS we'd require a force of at least 6 ACs of 65000 ton displacement at the very minimum , where 2 would be on constant patrol duty , 2 in Port & 2 under maintenance as the routine goes. When do you see us with these kind of capabilities ?
Furthermore , which Navy has 5th Gen capabilities to challenge the IN in these waters now or is expected to get it in a decade or 2 except USN & PLAN ?
We aren't going up against the USN & if we go up against PLAN in the next couple of decades it'd be more of an area denial strategy with our submarines & missiles like the hypersonic missile we've just demonstrated plus SMART with our Island chains at the ANC & possibly Lakshadweep Islands coming into play apart from peninsular India.
The last thing we'd be doing is pitching our ACs against them assuming we've even 2 such 65000 ton displacement ACs.
So once again I ask you where're we proposing to deploy those 5th Gen Stealth FAs on ? Let's leave aside current developments wherein existing air launched AShM like Brahmos etc are too big to fit in the IWB of these proposed Stealth FAs.
Let's assume as & when development work begins on such FAs , we'd also be developing a new class of such missiles compact enough to be carried in IWB of such 5th Gen Stealth FAs. Hence I didn't bring up this argument.
What isn't clear to me is why they are insisting on building a 4.5G jet first before developing a whole new 5G jet. Time is not on ADAs side.
I thought that's how you go about it. Develop a 4.5 Gen FA & graduate to 5th Gen unless you're suggesting a reversal of the order or concurrent development.
If Russia were to offer a suitably sized single/twin engine stealth jet a few yrs down the line, the IN isn't going to wait for ADA to cross the R&D finish line.
I mean isn't the MiG-29K bad enough that you want to go in for another untried experiment from Russia where we serve as the guinea pig ?