Bharat Rakshak

maitya

Maitya sir, what do you think of the offer of 117S engines for the Su-30MKI upgrade program? Pls refer to one of my earlier posts , on this aspect!! Aanyway, my understanding wrt various contemporary Russian TF technology is: AL-31FP < AL-41F-1S (Izdeliye 117S) < AL-41F-1 (izdeliye 117) < AL-51 (Iz...

maitya

... The AL-51 (izdeliye 30) is also a must-have aboard any Su-57 for India. The Russians could be likely be more malleable than the French, but the details matter. ... ... Same with the AL-51 engines. There should under no circumstances be a Su-57E with AL-41 engines given the IAF will be using the...

maitya

https://x.com/shreedharsingh9/status/1973708836998647989 @shreedharsingh9 3D printed Inconel 718 turbine blades for HTFE 25 It is able to provide 1455K TET <snip> ... and my response to it (on X): https://x.com/maity50983/status/1973745989065527612 This is a very old photo - see here (from JayS) an...

maitya

• Rafale first flight with a pair of GE F404 turbofans: 04 July 1986 • Rafale first flight with one M88 turbofan and one GE F404 turbofan: 27 Feb 1990 But there is more to this story, than just an approx 4 year time span. From Wiki Chacha... The M88 program was officially launched in 1986. It was d...

maitya

Cybaru wrote: ↑19 Sep 2025 09:48 <snip>
M88TREX - This changes the game completely!
- This secures Rafale in Indian conditions for hot and high perf,
<snip>

Hang on - just how will M88-TREX be more suitable (compared to M88-2 or F404 or F414 etc etc) for "hot and high" perf parameters?

maitya

From @HALHQBLR on X: 3rd F404 Delivery

HAL has received the third GE404 engine for LCA MK1A. One more engine is scheduled to be delivered by the end of September 2025. Engine supply chain improvement will pave the way for LCA Mk1A aircraft deliveries.

maitya

So it's final then ... French Safran and DRDO combine to give India its first jet engine ... Safran-GTRE will develop nine prototypes of fighter engines within a time frame of 12 years . The engines will initially developed with 120 KN power but go up in capacity to 140 KN by the end of the 12 year ...

maitya

https://x.com/alpha_defense/status/1964943388022915317 ---> Is that Kaveri Dry + Afterburners? If the image is indeed recent, it warrants close attention. The frontal section hints at a reworked fan architecture, while the visible afterburner suggests possible integration of an AB on the Dry Kaveri...

maitya

On X: @shreedharsingh9 have posted, this image/poster , which states purportedly a "new" Kaveri variant with increased BPR (0.20) and reduced OPR (20.5) : Wrt which here're some of my comments in X: 1. That's seriously interesting - if BPR is being increased (from 0.16) then there'll be th...

maitya

We are almost there with Kaveri. The dry engine is now ready. Looks like it nearly matches the required thrust for Mk1A. But instead of testing it in the air, our people want to test it directly on Ghatak as per the report. I do not see a reason not to test it and address any issues that may arise ...

maitya

A new deal to buy 113 GE F404-IN20 engines by Sep for additional 97 Mk1As India likely to sign USD one billion fighter jet engine deal with American firm GE by September https://aninews.in/news/national/general-news/india-likely-to-sign-usd-one-billion-fighter-jet-engine-deal-with-american-firm-ge-...

maitya

I think it is official now - Safran is the selected partner. BIG Announcement: India To Build 5th Generation Fighter Jets, Announces Rajnath Singh https://www.timesnownews.com/india/india-to-develop-5th-generation-fighter-jets-to-tie-up-with-french-firm-safran-says-rajnath-singh-article-152508111 2...

maitya

This is not verified but several you tube channels are carrying this news. Japan offers IHI XF9–1 6th generation engine for India's AMCA ... US, UK, France Shocked! Japan Offers Huge 200 Kn Engine for AMCA! Invites GTRE for Secret Review Japan surprises the world as it offers a powerful 200 kN engi...

maitya

The only viable option is to go for Kaveri 2.0 on our own. The rest of the M88s and RD33s, etc, are not going to give a solution to the problem which has been there since the time of Marut. Right ... however these 97 will not be in production atleast until 2029, so this window gives us the opportun...

maitya

Totally off the wall thought; if Russia agrees to enter into a equal partnership (50 : 50) in the development and ownership of izdeliye 30’s designation AL-5 powerplant for AMCA and future aircraft it might be worth investing money and partner with them; lot of challenges, due to the current enviro...

maitya

From X: @shreedharsingh9 https://x.com/shreedharsingh9/status/1955261629525836008 10 Tejas Mk1A have been built and 2 Tejas Mk1A are in the final assembly stage, 1 Tejas Mk1A trainer has been manufactured and 2 Tejas Mk1A trainers are on the assembly line. Thus about 14-15 Tejas Mk1A will be ready b...

maitya

India explores partners beyond US to build fighter jet engines - ET India is engaging with manufacturers from at least three other countries for jointly making fighter jet engines , expanding its defense partnerships beyond the US as it seeks to close capability gaps amid rising regional tensions, ...

maitya

Has GE delivered the second engine - this month - as per schedule? Or is it two engines, starting from August? Yes they have. Which means as of now HAL has 2 brand new engines which then means that as soon as the Astra Mk1 trials are over, a proper "roll-out" can be done and those 2 Tejas...

maitya

From X: By @sriramthg https://x.com/sriramthg/status/1950891589095883161 thermal conductivity oxides such as doped YSZ , Yb2O3 doped Gd2Zr2O7 & La2Zr2O7 based TBC were developed. Doped YSZ plasma sprayed TBC exhibited lower thermal conductivity, lower erosion rate, higher temperature drop & ...

maitya

https://x.com/alpha_defense/status/1947262674212913304 ---> LCA Mk1A Wing sets from Larsen & Toubro. https://pbs.twimg.com/media/GwYREquaAAACjY_?format=jpg&name=tiny Hope we do realize that had this been a cocured-cobonded tech based upper skin, there'd been none (actually a very few) of th...

maitya

X-Post from the Tejas Mk2 Medium Weight Fighter: News & Discussion thread... https://x.com/dotcom_1106/status/1942109709357715704 ---> ... Ok, so Arithmetic/Unitary-method time folks: 8) 8) First notice the play of words in HAL CMDs quote above: 1) Wrt Engines: 1st in April'2025, 2nd by end-Jul'...

maitya

Jokes apart, there's a significant confusion wrt all these recent news items on HAL's private partner participation in the Mk1A production. It's pretty easy (simple googling will do) to cite new-items from 2019-2021 timeframe, where the very same private partners were supplying the very same major c...

maitya

Below is *MY* Guess : Indian Origin Kit - Reactor + Sonar (updated USHUS) + Weapons (Varunastra Torpedo; BrahMos-S, SLCM, etc in VLS Cell).. French Origin Kit - Propeller Design, Pump Jet Propulsion, Hull Design, X-Shaped Rudder, Combat Management System, etc, etc, etc.... Rakesh: any particular re...

maitya

Oh man!! Oh man!! Oh man!! Round and round we go again - what a merry-go-around tamasha this whole program has degenerated to ... :oops: :oops: The AIP system on offer to India (from HDW) is not proven on the scale of the P-75I submarine i.e. tonnage wise. Now if you add a VLS cell, it would only i...

maitya

VLS Cell is back on Project-75I :) VIDEO : https://x.com/shreedharsingh9/status/1940446487244353663 ---> Brahmos Missile Vertical Launch system will be integrated with coming P75-I Submarine for long range attack says : former CEO & MD of Brahmos, Dr Sudhir Mishra. Oh man!! Oh man!! Oh man!! Ro...

maitya

https://x.com/VinodDX9/status/1942237209689813195 ---> Determining Factors: 1) Fully Indian authorisation 2) Indian systems: uninterrupted integration 3) Engine: Make in India 4) Spares: sustainment 5) Indian systems: seamless integration 6) Profit against investment (long terms) 7) Boost to manufa...

maitya

In an ageing submarine, an opportunity for the DRDO https://chakranewz.com/critical-technologies/trending/in-an-ageing-submarine-an-opportunity-for-the-drdo 04 July 2025 Sandeep Unnithan, as usual, is making too much sense ... so, as a corollary, the MoD baboons will now find out a way not to imple...

maitya

Safran unveils higher-thrust version of M88 for future Rafale upgrades https://www.safran-group.com/pressroom/safran-unveils-higher-thrust-version-m88-future-rafale-upgrades-2025-06-17 17 June 2025 At the Paris Air Show, Safran is unveiling the M88 T-REX, an evolution of its M88 engine. ... The imp...

maitya

<snip> Maityaji, If current Kaveri is close to 50/80kgf at 1024kg weight, it is already close to baseline RD33. In fact wrt tet and weight, it's ahead. https://en.m.wikipedia.org/wiki/Klimov_RD-33 Maybe it's time to stick it into a modified 2 engine Tejas/orca/tedbf airframe that's about 10 tons? T...

maitya

Have added some of my comments/views (in blue ): Here are some historical notes on Kaveri. <snip> 2002 - +3 years IAF cancels plan to use Kaveri for Tejas (at this time there were blade issues and FADEC problems. Some Snecma help was sought, but nothing came to fruition.   2003 - F404 engine chosen ...

maitya

It's 50kN/75kN admiral. Even F404-IN is better. <snip> Now heaven only knows what Safran has proposed to the Indian Govt as part of the AMCA turbofan JV . Could Safran offer to develop the M88-3 and M88-4 as alternatives to the F404 for Mk1A and F414 for Mk2? It is possible, but the question is wil...

maitya

I think, in this hullaballoo, people are missing a very fundamental ask ... there's a need of funding for ALL of the following, concurrently : 1) Flight-Test/Certification of original-K9 OR KDE+A/B (4 Gen TF) 2) Kaveri-II (4.5Gen TF - 90KN) D&D 3) AMCAs 120KN 5th Gen TF D&D, in partnership w...

maitya

DDP MOD - GOI publication - Pt (vi)
So 2nd F404 is scheduled for July'25 ... and then 2/month thereafter ...

maitya

https://x.com/cvkrishnan/status/1925762951706714133 ---> I thought Indian defence discussions, after some initial immaturity would move beyond the, “will GE share us its core engine technology?” , “will Dassault share source codes for its jet?” “Will Naval Group provide its sub data tables?” And no...

maitya

https://x.com/ShiroBarks/status/1917809748549984406 ---> “Our skies must be powered by engines built in India, for India.” • Fast-tracking the Kaveri • Boosting public-private R&D partnerships • Attracting foreign OEMs with co-dev & tech transfer • Developing materials & testing for hig...

maitya

was this posted earlier - https://alphadefense.in/index.php/2025/04/13/key-improvements-in-the-kaveri-engine-by-gtre/ Talks a lot about weight reduction. Blisks for LPC/HPC stages, PMC ducts. Also talks of CMSX-4/TBC usage contributing to slight increases in TeT Nothing in this article that we have...

maitya

... Max we can ask for, is to i) either allow our GaN (Virupaksa variant) AESA be allowed to be included for all 76 (40 +36) platforms - or maybe all ~100 platforms (40 + 36 + 26). ... ... We went through i) with the Indian Navy asking for the Uttam radar on their upcoming Rafale Ms. We were given ...

maitya

From X - @shreedharsingh9 : Jet Engine parts made from CMC materials https://pbs.twimg.com/media/GnZwcU4W0AAjB6r?format=jpg&name=tiny In this context, further details from @shreedharsingh9 in X: Russia's advancements wrt CMC Turbine Blades https://pbs.twimg.com/media/GogvIpyWMAAtkAe?format=jpg&...

maitya

From Air HQ’s perspective, it is a smart move —> Acquire a small number of Rafales and kill the contest. All the contestants want a minimum order of 100 aircraft to setup a production line. To avoid the geopolitical pressure from Trump (forcing India to select a F-teen), just get a follow-on (albei...

maitya

Rakeshji beat me on this ... Again what does such piecemeal acquisitions mean for MRFA? It never made sense for any other contenders to be acquired, but with such piecemeal acquisitions, the Lic-mfg part also fast becoming a non-sequitur. Is MRFA now going to transform into MRSFA, effectively making...

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