Search found 847 matches

by maitya
22 Jul 2025 13:57
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

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...
by maitya
16 Jul 2025 20:39
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

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'...
by maitya
16 Jul 2025 19:40
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

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...
by maitya
11 Jul 2025 20:34
Forum: Military Issues & History Forum
Topic: Project 77 Alpha Class SSN: News & Discussion
Replies: 95
Views: 70115

Re: Project 77 Alpha Class SSN: News & Discussion

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...
by maitya
08 Jul 2025 20:28
Forum: Military Issues & History Forum
Topic: Project 75I - It Begins
Replies: 2108
Views: 938332

Re: Project 75I - It Begins

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...
by maitya
08 Jul 2025 19:29
Forum: Military Issues & History Forum
Topic: Project 75I - It Begins
Replies: 2108
Views: 938332

Re: Project 75I - It Begins

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...
by maitya
08 Jul 2025 19:24
Forum: Military Issues & History Forum
Topic: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III
Replies: 3303
Views: 1178838

Re: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III

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...
by maitya
08 Jul 2025 19:11
Forum: Military Issues & History Forum
Topic: Naval Procurements & Acquisitions: 02 April 2024
Replies: 205
Views: 227772

Re: Naval Procurements & Acquisitions: 02 April 2024

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...
by maitya
20 Jun 2025 12:31
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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...
by maitya
04 Jun 2025 21:14
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

<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...
by maitya
04 Jun 2025 12:20
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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 ...
by maitya
30 May 2025 12:44
Forum: Military Issues & History Forum
Topic: Tejas Mk2 Medium Weight Fighter: News & Discussion - 23 February 2019
Replies: 2982
Views: 1696525

Re: Tejas Mk2 Medium Weight Fighter: News & Discussion - 23 February 2019

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...
by maitya
27 May 2025 21:09
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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...
by maitya
26 May 2025 17:35
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

DDP MOD - GOI publication - Pt (vi)
So 2nd F404 is scheduled for July'25 ... and then 2/month thereafter ...
by maitya
25 May 2025 10:15
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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...
by maitya
03 May 2025 09:02
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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...
by maitya
29 Apr 2025 17:03
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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...
by maitya
17 Apr 2025 20:33
Forum: Military Issues & History Forum
Topic: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III
Replies: 3303
Views: 1178838

Re: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III

... 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 ...
by maitya
16 Apr 2025 21:35
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

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&...
by maitya
16 Apr 2025 19:04
Forum: Military Issues & History Forum
Topic: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III
Replies: 3303
Views: 1178838

Re: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III

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...
by maitya
16 Apr 2025 17:51
Forum: Military Issues & History Forum
Topic: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III
Replies: 3303
Views: 1178838

Re: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III

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...
by maitya
12 Apr 2025 18:32
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

From X - @vatsalyamaurya : Russia has developed turbine blade and cooling architecture which allows tet upto 2000-2200 k https://pbs.twimg.com/media/GoVKbeTWsAA7scr?format=jpg&name=900x900 From X - @vatsalyamaurya : Materials in various Russian Engines https://pbs.twimg.com/media/GoVKdHSWQAAHz5y...
by maitya
09 Apr 2025 21:40
Forum: Military Issues & History Forum
Topic: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III
Replies: 3303
Views: 1178838

Re: MRCA (Many Rakshaks Choose Aircraft) Contest - Episode III

^^^^^ Ideal would have been 57 + 26 = 83 Lic Mfg at the 2nd Line, over a 10 year horizon.
(which means 10/year peak rate - plus any addn "offloaded" vol from the current order-book, to take it to 14-16/year peak rate)
by maitya
04 Apr 2025 13:06
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

Must be - though I think they are CMSX4 (2nd Gen SX) based, which in turn would mean ~1075-90 deg C raw-metal-temp capability. But do note 1493deg K (1220deg C) TeT, is way too low for a SX-based blades that employs both , film-cooling* (~250deg C adv) and also with TBC (~150deg C adv) - ofcourse, ...
by maitya
03 Apr 2025 12:32
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

maitya, the sx blades are from dmrl. Must be - though I think they are CMSX4 (2nd Gen SX) based, which in turn would mean ~1075-90 deg C raw-metal-temp capability. But do note 1493deg K (1220deg C) TeT, is way too low for a SX-based blades that employs both , film-cooling* (~250deg C adv) and also ...
by maitya
02 Apr 2025 21:37
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

From X - @shreedharsingh9 : HTSE - 1200 engine https://pbs.twimg.com/media/Gnib7xNakAA7OMg?format=jpg&name=900x900 Key tech points to note: 1) Effusion cooling architecture (but for Combustor) - since HAL engine div is mentioned, it must be the 3D-printed TF component capability from the HTFE pr...
by maitya
31 Mar 2025 15:53
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

https://idrw.org/lt-proposes-indigenous-110kn-engine-development-urges-government-to-back-merit-over-cost/ shreedhar singh @shreedharsingh9 DRDO has assembled and validated the bi-layer YSZ-LZ coated flaps in an aero-engine https://pbs.twimg.com/media/GnStMxqbcAAlLyc?format=jpg&name=tiny Atmani...
by maitya
27 Mar 2025 12:48
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

Upping this thread ... I continue to get asked such questions (on X), but given the limitations of X, will try and reply it here: From X - @shreedharsingh9 : Sir ,What is the thermal resistance of LZ -8YSZ compared to pure 8YSZ ?? From X - @sahilsinghop : What will be the TET of Kaveri if we use LZ ...
by maitya
22 Mar 2025 19:50
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

Thanks for jogging the memory, remember that. Hindsight says not a good decision. Perhaps we can reconsider. Maybe become part of global supply chain forf404 (is it still widely used?) if that makes the deal more viable? However that still doesn't explain, what I've been advocating for quite some t...
by maitya
19 Mar 2025 22:50
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

Wow!! Courtesy @vatsalyamaurya in X: Detailed information on Izdeliya-30/AL-51 , seeing this for the very first time. Simply dazzling level of 5th Gen (they are claiming 5+ Gen, maybe rightly so) TF technological prowess on display - no wonder Russia is so protective about the IP!! Hard to swallow t...
by maitya
19 Mar 2025 09:46
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

https://x.com/shreedharsingh9/status/1898306211130278017 https://pbs.twimg.com/media/GlgjcDAXgAEzgVc?format=jpg&name=tiny Advanced technology for AMca engine Again, nothing new, this is one of the slides from Webinar on Aero Gas Turbine Engine Development in India - 2022 , that was posted by Ra...
by maitya
17 Mar 2025 19:47
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

Sir, they are for Mk1. Center, Rear & Front fuselage were all delivered by private vendors. Mk1A would have some changes but shouldn't be very different. Actually that's where the confusion is: All along, for the Mk1 deliveries, we have known Alpha Tocol, VEM Industries, TASL et all have been p...
by maitya
17 Mar 2025 19:10
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

HALs Nashik unit to roll out first Light Combat Aircraft MK1A by April end

Other than the headlines, nothing special in the news item wrt MK1A, except for:
1) The Nashik Line has been idle from 2019-20 onwards
2) It took only 150Cr to setup this assembly line - must be a typo!!
by maitya
16 Mar 2025 11:27
Forum: Military Issues & History Forum
Topic: Air Force Tejas Mk1A: News & Discussions: 02 January 2022
Replies: 1780
Views: 6812342

Re: Air Force Tejas Mk1A: News & Discussions: 02 January 2022

And now From X @ShiroBarks: Center Fuselage by VEM Technologies Sir, they are for Mk1. Center, Rear & Front fuselage were all delivered by private vendors. Mk1A would have some changes but shouldn't be very different. Actually that's where the confusion is: All along, for the Mk1 deliveries, we...
by maitya
15 Mar 2025 10:32
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

Maitya Given that both rr&Safran are ahead of us in tech capability, what 'co-development' will actually happen and how much will we absorb from them if they develop the core and we do the lp and ab sections? Foreign oems developed new alloy compositions for new engines and engine related impro...
by maitya
14 Mar 2025 13:36
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

maitya ji, we need to become a bit more proactive in this regard, instead of expectantly waiting open mouthed under some random mango tree and hoping against hope that a ripe, juicy, sweet and succulent mango (complete TOT for the latest military jet engine) will miraculously fall into the aforemen...
by maitya
13 Mar 2025 16:22
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 7059
Views: 3099852

Re: Kaveri & Aero-Engine: News & Discussion

Russia’s Tit for Tat to F-35 Offer. Offers the most powerful AL-41 Engine from Su-57 Fighter Jet to India for the Su-30 MKI Russia offers Sukhoi-57 engine for India’s Sukhoi-30MKI upgrade https://www.tribuneindia.com/news/india/russia-offers-sukhoi-57-engine-for-indias-sukhoi-30mki-upgrade/ 12 Feb ...