ADA Tejas Mark-II/Medium Weight Fighter

Azaad said:
Yes , I really couldn't get this part . What's the GoI doing sanctioning funds for an assembly jig irrespective its cost ?!

One would have thought this is part of the development costs of the Mk-2 sanctioned to ADA & supervised by the MoD.

Is it beyond the scope of the budgeted amount which is to say is it an additional cost or is the development of the Mk-2 being monitored at the highest level ?
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Iirc mk2 was supposed to feature fixed refueling probe just like lca mk1a and rafale. This decision to use retractable probe should have came much later hence additional funding maybe .

Just a hunch.
 
GodEmperorDoom said:
I think side DAS is not that important. Of course it butchers overall view but a missile can't approach from side and attempt to get a hit. It would always be in a straight line to plane and hence the MAWS would always pick them up.
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It seems you are confusing b/w DAS & MAWS. DAS is an arrangement of MAWS & fixed IRST functions
Apart from fixed SAMs, the mobile ones & MANPADS can pop up anywhere. In a good IADS these mobile SAMs will have real time info of enemy jets & can/will try to ambuh the targets.
Apart from common/generic startegies & tactics, pilots are also taught specific ones against each type of target. A stealth jet can sneak & exploit blind spots, that's the 5gen philosophy.
And now with networked sensors the 6gen would be super sneaker. 👟:doh::LOL:
If 2 MAWS pair is used on top & bottom then considering overlap, their FoV could be 120+/- degrees still creating big side blindspots.
 
GodEmperorDoom said:
I think side DAS is not that important. Of course it butchers overall view but a missile can't approach from side and attempt to get a hit. It would always be in a straight line to plane and hence the MAWS would always pick them up.
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Missiles dont CHASE from behind, mostly they intercept by calculating the intersection like below image. Thats why one needs MAWS especially on side profile.
1740372249207.webp
 
Azaad said:
Yes , I really couldn't get this part . What's the GoI doing sanctioning funds for an assembly jig irrespective its cost ?!

One would have thought this is part of the development costs of the Mk-2 sanctioned to ADA & supervised by the MoD.

Is it beyond the scope of the budgeted amount which is to say is it an additional cost or is the development of the Mk-2 being monitored at the highest level ?
Click to expand...
Bean counting babus, mnrega attitude work culture, disinterested airforce - china must be laughing its a** off at us & Modiji vishwaguru dreams
 
Bleh said:
If you are a non-stealthy jet having IRST & Targetting pods you don't need EOTS to do their same job. 😑
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Yes, that guy mentioned EOTS which i pointed.
But as many people say that many components are same with AMCA. So the EOTS could have been implemented with regular cover like UAVs have, freeing a hardpoint. The system has become more compact & lighter. It would be analogous to hanging the Rafale's OFS suite upside down 🙃
We're implementing IRST on top of nose, so it can't cover below. The fixed DAS has to do that.
In F-35 they implemented IRST function in EOTS below on chin, so the DAS has to cover upper area.
 
I don’t think US will supply engines for Tejas MK2 because it will be a competitor to F-16.
 
eastern_bhartiya said:
Hal doesn't have capacity to compete with even a single manufacturing plant of lockheed , I doubt muricans see mk2 as a threat.
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Let’s hope the Kaveri or some another engine is ready within next 10 years. Trump is a businessman who cares only about American interests. If US military-industrial complex sees the Tejas MK2 as a threat to F-16, they may stop supplying engines to India.
 
Ajatshatru said:
Let’s hope the Kaveri or some another engine is ready within next 10 years. Trump is a businessman who cares only about American interests. If US military-industrial complex sees the Tejas MK2 as a threat to F-16, they may stop supplying engines to India.
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Kaveri's gonna take 7-10 years to get complete. Picking another engine rn isn't possible. Sadly enough we're stuck with Americans.
 
eastern_bhartiya said:
Kaveri's gonna take 7-10 years to get complete. Picking another engine rn isn't possible. Sadly enough we're stuck with Americans.
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I don't see Kaveri being ready until all Mk1A's ordered have been built. Apart from the PSU-style culture and administration slowing things down, unrealistically low funding is likely to slow development down further.

M-88 produces about 75kN IIRC, whereas a much more powerful engine is required to get close to F414 thrust . Would take time and a lot of money.

EJ-200 produces 90kN. Perhaps EJ-200 is a better idea - a small decrease in thrust would match F404-IN20 output while a relatively small increase would match F414 output. IIRC when EJ-200 was selected for Eurofighter, the brief required an engine where the thrust could be augmented (a) by 20% (b) by 30%. That would bring thrust up to (a) 108kN, (b) 117kN.

One base engine could span Tejas Mk1/Mk1A, Tejas Mk2, AMCA Mk1 and AMCA Mk 2.

Dev cost: presumably derating the 90kN version to would not be expensive while augmenting thrust by 20% or 30% (with some of the design work already done) would be much, much cheaper and much, much faster than starting a new engine from scratch.

While not ideal, it may cover all the bases, so to speak. Most importantly, GOI may actually be prepared to finance the project. And Eurojet may be prepared to part with a lot of IP - at least for the detuned version.
 
Some GE F414 info provided by a poster on another forum

The F414 is the most advanced jet engine in the world to ever enter production. Letting a third world country buy an aircraft with this engine is a big threat.

The F414 has the highest pressure ratio of any afterburning turbofan in the world. It has a thrust to weight ratio higher than the engines in the F-22 and F-35. This extreme performance is still achieved despite the engine being derated well below its maximum performance. This derating gives the F414 a massive 6,000 hours between overhauls. This is longer than any other afterburning turbofan in the world. The EJ200 in the Eurofighter and F119 in the F-22 are 2,000 hours between overhauls. All of the Russian fighter engines have a time between overhauls of less than 500 hours.
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Sounds like a devastating engine. While India may be allowed to use it, would the US block its supply to many potential Tejas Mk2 customers? That would favour a backup engine being acquired in case of supply problems with F414.
 
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