I am not sure but HAL only mfg 2nd and 3rd gen TF, that too when materials come from Russ. Pvt players like Azaad Engg, BFL, GOdrej etc have been mfg some components including TF for Japan and RR. I think Kalyani and now Godrej have said before that if Govt comes out of L1, L2 mindset and forms a consorcium with GTRE+4,5 pvt
You're too underestimating hal mate. Ends user agreements are limiting hal from using indigeneous materials for single crystals blades as per contract alloys must come from russia it is not like they don't have the capacity.
They have the capability to produce & use indigeneous SCBs in al31. DMRL has developed SCBs for al31fp. they had developed dms4 nickel based super alloy SCBs,turbine vanes for al31. Initially dms3 was developed but there were some deficiencies which were sorted out and even further improvements lead to dms4 and who actually dmrl went to for this hal koraput. hal used dmrl developed thermal barrier coatings to improve al31 without compromising the agreement Clause. It eventually improved the al31. Not just that the nozzle mtbo was also improved by dmrl. Hal has the capability to manufacture modern SCB.
Just a mere fact kaveri has higher tet than al31.
With ds blades and indigeneous TBCs. The ds blades used in kaveri provides 1050c tolerance along with other means like tbc & cooling it is then improved upto 1450c. Al 31 tet is below 1400c. The f110 mid iteration has tet of 1510c. M88 has 1577c, the f119 has 1650c,F135 has 1960c, Al41 has 1640c, f414epe has 1600c, ej200 1535c notice super cruising engines have tet above/around 1550c
The kaveri now uses dmd4 a directionaly solidified which shares materials with dms4.
Why doesn't they use dms4 ? Who knows maybe dmd4 does the job. after it surely provides tet higher than 1450c tet without latest TBCs available here. Tet was never an issue in kaveri. Given the development we have done in tbc with dms4 kaveri can achieve tet of 1700c easily.
TBCs developments are quite unreported given the developments we have done for hstdv. I will say kaveri can achieve tet of 1700c+. But that would require work staring from very begging and would cost abit. Maybe even major redesigning as kaveri was designed with ds blades. And we don't even have e test facilities yet so again we can't there are tens of reason for it. Even the new fan paired with this new technologies we can develop 5th gen engine today (given infrastructure is approved)
But before that kaveri has to prove itself & the kde too Unless & untill mod babus will not allot funds
It is such a shame we're Just allocating 23k crores for drdo. Mod babus don't understand anything unless and until kaveri is proved no funds till then. That's the reality. Kaveri isn't facing materials problem it just can't initiate new programs and it will have to prove 90s design first to get funds after that they would be making a true low bypass engine with recent techs developed.
Visit pg no 29 of this thread handle named shiro on twitter has provided good info.
There is reason why samir v kamat said we can make 5th gen AMCA engine on our own. Chasing jv could be the reason of no confidence in them from babus system politicians and also drdo desired carbon composites tech along with adaptive cycle.
View: https://twitter.com/ShiroBarks/status/1899837650384863653?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1899837650384863653%7Ctwgr%5E%7Ctwcon%5Es1_c10&ref_url=
While with f414 new infrastructure will be brought improving overall manufacturing capability.
However this are not used in the al31 i suppose they should have had renegotiated it. Or maybe in the process.
players ( add to that MiDhani+
+BEL) they can do 110KN engine...
Bel has no job here.
Godrej, midhani , l&t, bharat forge, azad engineering can contribute but they only want to manufacture things while without spending on r&d. This doesn't apply to midhani though they have done descent job.
From ddr
