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Search found 440 matches

by maitya
05 Nov 2017 11:22
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

Kaveri has not reached a stage where it can be tested on a Mig-29 replacing say one of the RD-33 with Kaveri .....even one has to reach that stage ........All this talk about meeting dry thrust and not meeting wet thrust is juggling with words from Certification POV you need to meet the requirement...
by maitya
22 Oct 2017 13:02
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions: 15 August 2017
Replies: 1512
Views: 192379

Re: LCA: News & Discussions: 15 August 2017

Gaganullah, no canards. They have not found any distinctive advantage with the canards with LCA config. LCA navy MK1 will soon have active LEVCONs to increase control at lower landing speeds. Whether they port it to the the AF version needs to be seen. It might help with CnBeta and marginally bette...
by maitya
16 Aug 2017 11:31
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

Simply increasing the mass-flow will give higher thrust ratings but at the cost of propulsive efficiency (2nd and 3rd last rows) etc - which would mean poor SFS etc (but that's price to pay for "leaky-turbofan" type design, a la F404, presumably for achieving flat-rating requirement etc)....
by maitya
16 Aug 2017 09:33
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions: 15 August 2017
Replies: 1512
Views: 192379

Re: LCA: News & Discussions: 15 August 2017

Report is now available on Blog http://ajaishukla.blogspot.in/2017/08/tejas-fighter-finally-achieves.html ... HAL has created five “Tier-1” suppliers that each build a part of the Tejas. The front fuselage is supplied by Dynamatic Technologies Ltd, Bengaluru; the centre fuselage by VEM Technologies...
by maitya
10 Aug 2017 15:02
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

I think Austin saar is right That we manufacture 60% Kaveri and assemble 40% m88 core in numbers maybe 300 + engines. Second option is that: 2. We keep working on Kabini core for another decade and keep assembling 100% GE 404 / 414 engines. Option 1 is better this way we will learn the production i...
by maitya
09 Aug 2017 00:35
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

<snip> Betw Vinaji, not sure how and where to host an image and link it's URL from here ... (like I earlier used to do, before that site went kaput). Your above thesis was backed by my back-of-envelope-simulator which showed Thrust growth options and corresponding impacts to TeT and OPR and Thermal...
by maitya
08 Aug 2017 10:36
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

Yes the M88 core was offered in the past too but not taken as GTRE did not think they need it. They focused on the LP/AB thinking they need to get more out of them. If you note DRDO chief's statement 60% of new Kaveri will be GTRE. So the LP/AB were not the problem. there is the ~ 60%. If I had the...
by maitya
17 Mar 2017 18:20
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

<snip> They didn't go for co-cured structure because that technology was simply not there for the use on LCA. Its a recent development in NAL and is still not so mature that they can use it on an operational fighter . Not even MK2 will have co bonded co-cured wing. Only AMCA will have it. Even toda...
by maitya
05 Jan 2017 15:19
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

Ideally, a stealthy Mk3 which is spiral development of Mk2. Basically what the Chinese are doing with their J-10s. In this, respect if LM accepts to codevelop what they fielded for the South Korean program with us; or if SAAB agrees to merge their 5th gen program program with our Mk-3 version, we s...
by maitya
05 Jan 2017 11:45
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

One thing that i have contemplated is why not ADA hand over MK1A and Mk2 development to HAL and get on full fledged development of AMCA . It will be good as all turf wars can be avoided and MK1A lessons will easily flow into Mk2. But, I think there is too much pride at stake here. I don't know if s...
by maitya
26 Dec 2016 15:33
Forum: Military Issues & History Forum
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 483569

Re: Indian Missiles and Munitions Discussion - June'14

This is a good enough confirmation that the test was a success Prime Minister Narendra Modi congratulates DRDO for successful Agni-V missile launch . Buried within the report are congratulations from the President as well. Now off to User Trials ... betw with the success of Agni-V, why do we really ...
by maitya
15 Dec 2016 13:05
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

What happened to the much displayed desi AESA radar at the last Aero-India? Another great 'technology demonstrator" what? If this is not trolling of worst kind (combined with naked flame-baiting), I don't know what trolling is!! Response will be there, but after allowing the admins to express ...
by maitya
29 Nov 2016 11:37
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

<snip> In the hind sight it would be easy to criticise but it would have been good if they went with two engine program one by GTRE and other by HAL to develop an engine for Tejas. The GTRE team simply lead every one on a rosy path that told us Kaveri would be ready , Now if they did not anticipate...
by maitya
29 Nov 2016 10:35
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

First you said there were no official confirmations, and when you see one, you say it cannot be trusted? Forget the forward looking statements, what about the clear announcement of completion of the tests? Do you want Manohar Parrikar to come home and inform you about the sucessful completion of te...
by maitya
21 Nov 2016 12:17
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

^^^^ However I doubt such upthursting etc (from 51KN dry to 65KN dry levels) can be achieved in 2 years etc ... the testing cycle itself will span atleast 2-3years. I think, realistically, what they are trying to do with Snecma (as a consultative partner) is completing the mandatory ground-runs (IIR...
by maitya
21 Nov 2016 12:07
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

Actually its not a necessity that core needs to be redesigned for increasing thrust. One can increase fan size - that is increase BPR. But then that will increase engine dia which will not fit in LCA probably. That boat has sailed long ago now anyway. :eek: Where's the extra power gonna come from, ...
by maitya
16 Nov 2016 12:43
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

^^ I don;t think there'll be any need of any FCS changes for the MK1A - it's mostly avionics-only "upgrade" over MK1 (and also some degree of internal systems arrangement for better turn-around time etc). However, if HAL pulls-off, some serious weight savings in the range of say >500K etc,...
by maitya
07 Nov 2016 18:20
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

I hope you read the report fully before making that comment. :P JayS ji I request that we do not make insinuations about the other person's thoroughness or understanding. By the time I reached page 10 I had found stuff that indicates why there have been delays and it does not need an engineer to un...
by maitya
04 Nov 2016 16:26
Forum: Military Issues & History Forum
Topic: 'Make in India' Single engined fighter
Replies: 4942
Views: 409704

Re: Indian Single Engined Multi Role Fighter with Transfer of Manufacturing Technology

Can't believe the words being thrown around. "solve the problems with LCA", "induct the lca in large numbers", I have faith in NaMo and Parrikar and IAF. If LCA production issues were solved then they would have ordered more LCA. Yup ... spoken like true-blue customer. Somebody ...
by maitya
02 Nov 2016 12:37
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

We are confusing two issues. One whether LCA internal design is frozen, second whether HAL has set up the assembly line for manufacturing 8 LCA per annum for which funds were disbursed in 2001. HAL has not set up production line for 8 LCA per annum even after 16 years. And assembly lines are generi...
by maitya
02 Nov 2016 12:00
Forum: Military Issues & History Forum
Topic: LCA: News & Discussions - October 2016
Replies: 4125
Views: 608812

Re: LCA: News & Discussions - October 2016

TATAs seem to have started shipping cars with their Revotron engine Shiv sir, Revotron came in only in 2014 with consultancy from AVL, Bosch, Honeywell et al....so some design was done but crucial hand holding was done by the leaders of the industry. The crucial area of knowledge around combustion,...
by maitya
22 Oct 2016 09:24
Forum: Military Issues & History Forum
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 483569

Re: Indian Missiles and Munitions Discussion - June'14

How I'm thoroughly confused ... especially when I compare with what is written in this . It says Garuda is the non-winged glide-bomb and was tested for a 30km range (on both 18th and 19th Aug'16 - and earlier from 2014 onwards as well) - and that Garuthmaa is the 1000Kg winged smart glide bomb was ...
by maitya
21 Oct 2016 13:23
Forum: Military Issues & History Forum
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 483569

Re: Indian Missiles and Munitions Discussion - June'14

So KaranM and Indranil, Recall that tender for concrete penetration simulations for HSLD, looks like they are complete. Oh! They lifted the skirt only a little bit. They are on the second generation of most of these designs. What you are seeing here is the kit for the HSLD (1000lb) bombs which has ...
by maitya
04 Oct 2016 12:11
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

^^^^ The complexity of the manufacturing SC blades, their various Gens (and how a modern DS blade has better thermo-mechanical properties compared to 1st and even 2nd Gen SCs) and also inter-relationship of the TeT (obtained from better metallurgical tech of SCs etc) and the OPR (from better HPC tec...
by maitya
03 Oct 2016 23:14
Forum: Military Issues & History Forum
Topic: Army strikes terror camps in PoK
Replies: 1860
Views: 167492

Re: Army strikes terror camps in PoK

Hang on!! Isn't it that the Pigs used 120mm heavy mortar during last year (Aug 2015) shelling?

So exactly where is the escalation in this, we are merely being equal-equal here :twisted: - as I've said before, yeh dil maange more!!
by maitya
29 Sep 2016 17:20
Forum: Military Issues & History Forum
Topic: Army strikes terror camps in PoK
Replies: 1860
Views: 167492

Re: India's Retaliation Options to significant terrorist strikes

Bande me hai dum. Vande Matram. All the nay sayers myself included are stunned. Modiji my proud salute and humble pranaam to you. You have brought tears to my eyes. Deejay...kush ? ;-) Nah, pls forgive this thick-skull'd SDRE here - I can only keep body counts and compare. Only 2? Nah, not enough ....
by maitya
29 Sep 2016 12:25
Forum: Military Issues & History Forum
Topic: Army strikes terror camps in PoK
Replies: 1860
Views: 167492

Re: India's Retaliation Options to significant terrorist strikes

BREAKING retaliatory strikes carried out last night https://twitter.com/bennedose/status/781384840977408000 Yes breaking news on ToI as well: " Indian Army conducted surgical strikes on terror launch pads on the LoC, significant casualties have been caused: DGMO " Need some photos to cool...
by maitya
27 Sep 2016 23:46
Forum: Military Issues & History Forum
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 168642

Re: LCA Tejas: News and Discussions

Kartik wrote:thanks Dileep for the updates!

IFR probe integration is almost complete? Which LSP will it be fitted to and has it been fitted already? When do flight trials begin?

LSP-8
by maitya
21 Sep 2016 17:59
Forum: Strategic Issues & International Relations Forum
Topic: Terror Attack At Army Camp In Jammu And Kashmir's Uri
Replies: 666
Views: 51994

Re: Terror Attack At Army Camp In Jammu And Kashmir's Uri

Some unverified news - if true could be a completely different game Modi is willing to play .. 20 militants so far killed by 2/2 elite Para Commandos of Indian Army in PoK...strike inside PoK. Army may not officially declare moving inside POK and call it infiltration bid in Uri. Inside reports say ...
by maitya
21 Sep 2016 10:23
Forum: Strategic Issues & International Relations Forum
Topic: In response to the Uri Terrorist Attack...
Replies: 240
Views: 16300

Re: In response to the Uri Terrorist Attack...

I can only state on here what my thoughts tell me so I am not trying to change anyone's thought process or opinions, just laying open my own thoughts. I repeat - let me assume that we have a great leader, a fantastic bold thinker who dares to do the unthinkable or the difficult. And this leader is ...
by maitya
20 Sep 2016 13:08
Forum: Strategic Issues & International Relations Forum
Topic: In response to the Uri Terrorist Attack...
Replies: 240
Views: 16300

Re: In response to the Uri Terrorist Attack...

Have voted for option 1 as, till some action happens, to us this is as cowardly and clueless a GoI as was the previous ones, particularly the last one - same-to-same!! X-posted from another thread (my own post): <snip> The way to deal with Pakistan will have to be carefully calibrated and options an...
by maitya
20 Sep 2016 12:55
Forum: Military Issues & History Forum
Topic: India's Retaliation Options to significant terrorist strikes
Replies: 1191
Views: 121038

Re: India's Retaliation Options to significant terrorist strikes

Apologies to Gaganji, not really intended to you, but have taken the liberty to respond points from your posts which sums up quite nicely what is being tried here for quite some time. Sorry I'm just too angry to think straight and tone down, some aspects of it which may seem to point directly to you...
by maitya
19 Sep 2016 16:04
Forum: Strategic Issues & International Relations Forum
Topic: Terror Attack At Army Camp In Jammu And Kashmir's Uri
Replies: 666
Views: 51994

Re: Terror Attack At Army Camp In Jammu And Kashmir's Uri

... <snip> In the meanwhile, India decides to India to diplomatically isolate Pak from all forums http://timesofindia.indiatimes.com/india/India-to-diplomatically-isolate-Pakistan-from-all-forums/articleshow/54406359.cms ... There muh-tod etc jawab and "strong response" etc thought-thru a...
by maitya
16 Sep 2016 12:55
Forum: Military Issues & History Forum
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 168642

Re: LCA Tejas: News and Discussions

^^^^^^^^^ The query-answer-sequence was: Q: Also where in the LCA fuselage will the IFR probe be fitted (already fitted in LSP-8?) - in the "traditional" position of on the right side of the aircraft, almost at the front-edge of the canopy (as seen here, for example, https://babsblog.files...
by maitya
15 Aug 2016 13:42
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

^ Depends ... if this is another back-door attempt to implement Eco/M88 etc core while retaining the FADEC algo etc, then we are back to square one as far as developing indigenous turbofan development and manufacturing capability is concerned. However, if it's all about taking the Kabini core and in...
by maitya
15 Aug 2016 13:33
Forum: Military Issues & History Forum
Topic: Happy Independence Day!
Replies: 66
Views: 3082

Re: Happy Independence Day!

Happy Independence day to everyone - nice to have BRF back again online!!
by maitya
24 Jun 2016 09:06
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

Guys, take a chill pill - no need of fratricide, on such small issues!! brar_w does bring a lot of interesting nuggets on various frontiers of international (read US, the leader by a gazillion miles) military technology thinking - that's a very valuable contribution in itself. Minor nitpick that I'v...
by maitya
23 Jun 2016 13:14
Forum: Military Issues & History Forum
Topic: Kaveri & aero-engine discussion
Replies: 3637
Views: 543649

Re: Kaveri & aero-engine discussion

^^^ please consider writing a blurb for tech-and-time-challenged people like me who don't have a clue about how the above 2395 words relate to kaveri. It is quite tempting to create a write-up to what brar_w is alluding to, of course in lay-man words, but the level of bandwidth required for that is...
by maitya
21 Jun 2016 16:36
Forum: Military Issues & History Forum
Topic: 100% FDI in defence - what are we likely to see?
Replies: 75
Views: 1595

Re: 100% FDI in defence - what are we likely to see?

100% FDI in defence. <snip> ... .. what struck me was her descriptions of states like UP and Bihar. Those states have metamorphosed from ill fed dhoti clad and poor villagers to jeans clad cellphone carrying youngsters with degrees (BA/MA!!) no jobs. Joblessness is rampant and judging from the Biha...
by maitya
21 Jun 2016 10:03
Forum: Military Issues & History Forum
Topic: 100% FDI in defence - what are we likely to see?
Replies: 75
Views: 1595

Re: 100% FDI in defence - what are we likely to see?

100% FDI in defence. <snip> ... .. what struck me was her descriptions of states like UP and Bihar. Those states have metamorphosed from ill fed dhoti clad and poor villagers to jeans clad cellphone carrying youngsters with degrees (BA/MA!!) no jobs. Joblessness is rampant and judging from the Biha...

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