Search found 470 matches

by maitya
16 Feb 2016 10:42
Forum: Mil-Tech Archive
Topic: AMCA News and Discussions
Replies: 3315
Views: 470643

Re: AMCA News and Discussions

manufacturing capabilities will be similar to what Japan has today, where they are confident in making the entire next-gen engine themselves from scratch. Could you point me to some news items about how they got to this level or where they claim to be able to do this? Typically, from what I observe...
by maitya
12 Feb 2016 16:35
Forum: Military Issues & History Forum
Topic: Siachen News & Discussion
Replies: 2945
Views: 196492

Re: Siachen News & Discussion

We started at 12.30 at night from Bangalore and reached Hanumanthappa's home town Betadur by 7.30 AM. There was stage setup infront of a govt school and lot of police vehicles were there. We asked a policeman what is the plan. He said the body has reached KMC Hubbali by then and it will be 11 AM be...
by maitya
10 Feb 2016 16:29
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

Dude.. radome improvement to 80km doesn't "inspire you"? 80 km for a 2 sqmt target., comes to 100km for the 5 sq mtr. Even 80km even a 5 sqmtr one with a lower RCS translates to what current tech can get a light fighter in the class. The JF-17s KLJ-7 can manage 75km+ for a 5 sq mtr target...
by maitya
09 Feb 2016 10:57
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

What is the radar range on comparable fighter planes such as MiG-21s, F-16s, Mirages 2000s, FC-1, Mirages IIIs and IVs, and J-39 Griffen ? If the LCA radar range is drastically shorter than the rest of the above, I can easily understand why the IAF termed it as a three leg cheetah and may not want ...
by maitya
04 Feb 2016 10:49
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

Thank you. Good insights. But BRF boyz will be boyz more interested in scoring online pointz. Unfortunately boyz who don't learn any better become journalists and reporters who report crap that the boyz of BRF will feed on. :) More unfortunately, menz (me included) who claims superior intelligence ...
by maitya
03 Feb 2016 14:59
Forum: Military Issues & History Forum
Topic: PAK-FA and FGFA: News & Discussion - June 2014
Replies: 2756
Views: 340874

Re: PAK-FA and FGFA Thread - June 2014

India Looking At 60 FGFAs As Russia Reduces Price, Final Talks On http://armingindia.com/India%20Looking%20At%2060%20FGFAs%20As%20Russia%20Reduces%20Price,%20Final%20Talks%20On.htm NEW DELHI, FEB. 3, 2016: India and Russia are in final negotiations in New Delhi to settle the contributions for the d...
by maitya
03 Feb 2016 10:49
Forum: Trash Can Archive
Topic: IAF Rafale News and Discussions - 26 May 2015
Replies: 3973
Views: 261238

Re: IAF Rafale News and Discussions - 26 May 2015

After re-reading the last few months of IAF and MoD comments, this is my overall $.02, for whatever it is worth: If Rafale wins here, then expect them to win at least +80 more aircraft as IAF wants 6 squads as minimum. My guess is that if IN does not pick up Rafale-M, then 2 more contracts of off-s...
by maitya
01 Feb 2016 10:24
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

AtoA probe and pump will add some 100kg AESA are generally heavier than pulse doppler antennas but might be offset somewhat by removing current ballast internal movement for better access is fine. but this is nonsensical and hope nobody is buying this line: The plane will be 1,000 kg lighter than t...
by maitya
29 Jan 2016 15:16
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

does the mirage2000 (the closest existing analogue of the tejas design) have a STR of 18 ? else it is totally meaningless to compare to the F-16 in what it does best in the level plane-STR! we cannot take a union of the best of every design and expect anyone to match that. the F-16 tops off at mach...
by maitya
29 Jan 2016 09:57
Forum: Trash Can Archive
Topic: IAF Rafale News and Discussions - 26 May 2015
Replies: 3973
Views: 261238

Re: IAF Rafale News and Discussions - 26 May 2015

What is the penalty if it gets cancelled? H&D. ... actually, in the unlikely event of the deal-cancellation etc, the more worrying part is the current GAD state of the "no plan B" service-leadership worsening to that of MDD state. Now that will be quite something to worry about ...
by maitya
28 Jan 2016 10:19
Forum: Trash Can Archive
Topic: IAF Rafale News and Discussions - 26 May 2015
Replies: 3973
Views: 261238

Re: IAF Rafale News and Discussions - 26 May 2015

I am not sure why we need the offset for outright purchase we can reduce the price of the deal cost by 25-30 % Well to be fair, that depends upon exactly what is on the offer in the guise of this "offsets" - for e.g. if it loosely reads like " Co-design and development of 110kN low B...
by maitya
28 Jan 2016 09:32
Forum: Trash Can Archive
Topic: IAF Rafale News and Discussions - 26 May 2015
Replies: 3973
Views: 261238

Re: IAF Rafale News and Discussions - 26 May 2015

Question: What is the basis for the assumption that the Rafale itself will not bring us some strategic benefits? ... ... So it's not simply about he performance and weapons carrying ability but value that can be bargained for in terms of human skill and automation . ... Shivji, all fine but what ex...
by maitya
27 Jan 2016 18:00
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

Maitya, more than gizmos I'd add more fuel, a stretched fuselage and an even larger wing (if needed) with more pylons... But that would take it more towards MK-II territory - I's more looking at what more can be done that with the current air-frame for the IAs, without too much of structural/fight-...
by maitya
27 Jan 2016 16:15
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

i think its high time we added a unsightly dorsal hump like the Mig29upg perhaps with a RAM air generator also to house a rack of EW gear and passive sensors 360' More doable stuff is (i.e not going into too much of structural and basic flight testing etc) is: 1) Create a pair of wing-tip-fixed-pod...
by maitya
27 Jan 2016 09:59
Forum: Trash Can Archive
Topic: IAF Rafale News and Discussions - 26 May 2015
Replies: 3973
Views: 261238

Re: IAF Rafale News and Discussions - 26 May 2015

It IS now all about political capital actually ... to make good of a promise made by the PM. I think the PM should worry about his political capital with the Indian public , rather than some vague assurance to the French. Any way , they are the ones who seem to have shifted the goal post , so it is...
by maitya
27 Jan 2016 09:06
Forum: Trash Can Archive
Topic: IAF Rafale News and Discussions - 26 May 2015
Replies: 3973
Views: 261238

Re: IAF Rafale News and Discussions - 26 May 2015

There is no issue regarding political capital being invested in this deal ... <snip> It IS now all about political capital actually ... to make good of a promise made by the PM. Otherwise, why exactly did MoD/GoI not open simultaneous negotiations with other MRCA contenders (let's not count the als...
by maitya
26 Jan 2016 13:06
Forum: Military Issues & History Forum
Topic: PAK-FA and FGFA: News & Discussion - June 2014
Replies: 2756
Views: 340874

Re: PAK-FA and FGFA Thread - June 2014

OT for this thread I understand everyone is frustrated on the lack of response on sub conventional conflict. It is the escalation of conflict via more terrorist attacks that deter our leadership. In my personal opinion, there are more & more attacks year on year. Our lack of response creates a ...
by maitya
22 Jan 2016 12:50
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

Old Kaveri must fly on a Mig29 test bed as one of the engines! Need to get as much data as possible out of it. Yes ... and it has not got tested in the transonic and supersonic regimes*. Plus all sorts of throttle setting, stall scenarios etc can only be encountered in a military platform - and not...
by maitya
15 Jan 2016 10:02
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

Forgot another update from FB communications. And this (the ballast in the nose) is expected to come down after the IFR probe is bolted on? Is it likely that this ballast is completely done away with restructuring and reorganizing the LRUs/MLG on the Mk1A. Reports claim so. I have learnt not to bel...
by maitya
14 Jan 2016 14:41
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

Thanks hanumadu for that update from SJha You are welcome. Some of the information was already known here. In another tweet, he mentioned that Kaveri achieved the design dry thrust. Yes ... achieving dry thrust metric/value is quite an old news. However what is left unsaid is, and the more importan...
by maitya
14 Jan 2016 14:15
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

<deleted - duplicate post>
by maitya
14 Jan 2016 13:26
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

Re Maitya I suppose 25kn engine can also lead to offshoots in the form of 2500-3500hp turboshaft and turboprop engines for our IMRH helo and RTA aircraft? Of course ... see from a layman pov, a turboshaft is basically a turbojet (and not a turbofan) with a shaft sticking out of the turbine backward...
by maitya
21 Dec 2015 15:42
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

[Part - III] [The Kaveri/Kabini Example] For real world example, in the Kaveri/Kabini world this was a major holdup ... IIRC the molds were finally imported for Safran (?). Productionising such stuff also would have been a headache. Another problem that one is forced to deal with, is that of dealin...
by maitya
21 Dec 2015 15:37
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

[Part - II] [Casting Mold Materials and Design] First let’s look at the mold design and production itself: The mold design (and casting temperature control) itself requires extensive understanding (and thus devise algorithms from it) of the various thermal and mechanical processes undergoing during...
by maitya
21 Dec 2015 15:31
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 5062
Views: 999534

Re: Kaveri & aero-engine discussion

^^ Absolutely right. The shear amount of technological capabilities that need to be built up to be able to make a decent jet engine by today's standard is mind boggling. People who have not seen things up close might find it difficult to appreciate this. Wrt the highlighted part above, let try and ...
by maitya
15 Dec 2015 10:43
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

...... "rohitvats" wrote : ......So, the date for LCA Mk-II first flight goes up from 2019 to 2021? Good we have had the LCA Mk-1A or it would've been another wild goose chase for the IAF . Wrt the highlighted part above ... the below is what really happened: Fearful of having to do somet...
by maitya
14 Dec 2015 20:34
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 4036
Views: 322204

Re: LCA Tejas: News and Discussions

So, the date for LCA Mk-II first flight goes up from 2019 to 2021? Good we have had the LCA Mk-1A or it would've been another wild goose chase for the IAF . Wrt the highlighted part above ... the below is what really happened: Fearful of having to do something with the goose, once it's caught, IAF ...
by maitya
08 Dec 2015 12:56
Forum: Military Issues & History Forum
Topic: Indian Nuclear Submarines -3
Replies: 1466
Views: 218592

Re: INS Arihant (ATV) News and Discussion -3

Here is a question: How many will believe 1. If I, an SDRE state that I can design a nuke. OR 2. If I, an SDRE can only design a nuke with Gora Blonde eyed-Blue haired help. Your answer determines your opinion on the Nuke sub. There is a 3rd statement, I can design a nuke which not just surpasses a...
by maitya
03 Dec 2015 20:54
Forum: Military Issues & History Forum
Topic: Indian Nuclear Submarines -3
Replies: 1466
Views: 218592

Re: INS Arihant (ATV) News and Discussion -3

^Ah!!! Get it now ... it's our own Purefool is it, who is now being sited as the purest form of information about something Indian? :( Wow!! Such is the level of desperation, nowadays to denigrate indigenous weapon development programs :shock: ... but it's all kosher, I guess, when you have a gent c...
by maitya
17 Nov 2015 16:00
Forum: Military Issues & History Forum
Topic: Indian Nuclear Submarines -3
Replies: 1466
Views: 218592

Re: INS Arihant (ATV) News and Discussion -3

There is a report.article which I must track down,will take some time,where the Ru OEM provided substantial details including "drawings",etc. The entire ATV project is still so highly classified that we will perhaps never be able to discern the truth .The hard fact remains that without Ru...
by maitya
16 Nov 2015 16:33
Forum: Military Issues & History Forum
Topic: Indian Nuclear Submarines -3
Replies: 1466
Views: 218592

Re: Indian Missiles and Munitions Discussion - June'14

After all, if Russia is to willfully violate the enn-pee-tee by sharing the reactor design details etc, why not take these next steps as well. FWIW Nuclear Naval Reactor dont come under NPT and Bharat Karnad in his book Indian Nuclear Policy when he was NSC member , mentioned Indian Imported 2 Reac...
by maitya
16 Nov 2015 14:51
Forum: Military Issues & History Forum
Topic: Indian Nuclear Submarines -3
Replies: 1466
Views: 218592

Re: Indian Missiles and Munitions Discussion - June'14

Some authoritative sources claim that it is a Ru design.built by us using local materials/components to drawings provided by the Ru OEM. ... ... Nah, no such thing happened, except in your head, as is the case with anything indigenous anyway - so nothing new there. Apart from sheer-absurdness of su...
by maitya
01 Oct 2015 18:28
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 3980
Views: 181314

Re: LCA Tejas: News and Discussions

<snip> maitya, what metal is that spar? At the risk of going complete tangential to the current discussion flow, pls do note that anal-ysis of mine had assumed UD CFC Spars which are all I-beam shaped. The right-hand "un-finished" diagram actually was depicting 5 wing-boxes made of Spars ...
by maitya
01 Oct 2015 16:18
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 3980
Views: 181314

Re: LCA Tejas: News and Discussions

What i meant is the support structures are already designed for much higher loads than what manoeuvrings loads of MLG would induced on them. Impact load at landing which is far higher than any load MLG could induce at 9G, will be the criteria deciding support structure's design and weight. So reduc...
by maitya
17 Sep 2015 08:55
Forum: Trash Can Archive
Topic: Indian Space Programme Discussion
Replies: 3934
Views: 263776

Re: Indian Space Programme Discussion

<snip> ... This not just brings the cost down but also increases launch efficiency. I think ISRO is hedging its bets., it has the cryo-tech and will scale that up. However scaling up the cryo-tech (to reach US Space Shuttle SSME levels) is not easy and in the meantime the semi-cryo stage provides a...
by maitya
16 Sep 2015 13:36
Forum: Military Issues & History Forum
Topic: India's R&D in Defence DRDO, PSUs and Private Sector
Replies: 3933
Views: 575690

Re: India's R&D in Defence DRDO, PSUs and Private Sector

^^^ Apparently those SCBs are more advanced than those supplied by Russians to HAL under ToT for Su-30MKI engines. I can believe that easily. I know at least that the AL31FP blades are not the state-of-the-art. Single passage cooling channels only IIRC. And I think the ones made by DRDO are multi p...
by maitya
19 Aug 2015 11:26
Forum: Military Issues & History Forum
Topic: PAK-FA and FGFA: News & Discussion - June 2014
Replies: 2756
Views: 340874

Re: PAK-FA and FGFA Thread - June 2014

Dassault's concerns about HAL's capabilities could easily be echoed by Sukhoi about the high-tech involved in the FGFA.It has taken India a decade+ to master MKI production and FGFA acquisition numbers aren't expected to be that high.This would drive up the cost of the aircraft. The decade long tim...
by maitya
31 Jul 2015 10:49
Forum: Trash Can Archive
Topic: Article on MMRCA for Swarajya Magazine
Replies: 34
Views: 2725

Re: Article on MMRCA for Swarajya Magazine

KaranM, srai or Maitya I think excellent chance to springboard your knowledge. Maitya has gone into hibernation - someone locate him Shivji I'm very much there, but in lurk mode, as I desperately try to figure out a laymanish method of detailing " load distribution for a series of cantilever b...
by maitya
21 Jul 2015 21:19
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 3980
Views: 181314

Re: LCA Tejas: News and Discussions

Also we all are here to learn and be wiser. So no point in tu-tu mai-mai ing. Applies to everyone. Ok, fair enough ... no more post from me on this R73 vs R-60 scope-creep/weight creep etc. But if you/tsarkar wishes I'm willing to post the method (from 1st principles, so as layman'ish as possible) ...
by maitya
21 Jul 2015 15:17
Forum: Trash Can Archive
Topic: LCA Tejas: News and Discussions
Replies: 3980
Views: 181314

Re: LCA Tejas: News and Discussions

For e.g. you go to a good/large BRD - you will see Cpl/Sgt ranks far outweigh the officer cadre wrt professional (mostly technical) qual etc. And it's far more evident on a day-to-day work-profile. Almost ~2+ decades back, one witnessed the M53-P2 engine test being conducted, completely end-to-end,...

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