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by PratikDas
18 Sep 2017 09:38
Forum: Mil-Tech Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1889701

Re: Indian Missiles News and Discussions - May 2017

nash wrote:I think he has answered:
Saurav Jha‏ @SJha1618 16h16 hours ago
But there's one thing, from what I gather, XRSAM is likely to have a fully active seeker.
Does "fully active seeker" mean Lock On After Launch [LOAL]?
by PratikDas
30 Aug 2017 09:49
Forum: Mil-Tech Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1889701

Re: Indian Missiles News and Discussions - May 2017

Sir, honestly all the holes I see are fastening holes only and the round white thing allover the body seems to be sea corrosion or invasive organic growth See this image - look at the plate the guy is holding at bottom left - you can see his thumb and fingers. The fastening holes are seen separatel...
by PratikDas
17 Jul 2017 04:19
Forum: Mil-Tech Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1889701

Re: Indian Missiles News and Discussions-May 2017

Thakur_B ji detected QR-SAM in October 2015

Image
Thakur_B wrote:
Comprehensive list of aerospace testing facilities in India.
http://atfi.dlis.du.ac.in/ATF.php

New missile under EMI/EMC test at RCI ? QRSAM maybe ?
by PratikDas
12 Jul 2017 20:33
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

chola wrote:I invite all to the sex nukkad to cool down (or heat up even more depending the subject matter.)
:rotfl:

I didn't even know there was such a thread. What does it even mean? :rotfl:
by PratikDas
12 Jul 2017 19:49
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

To those who say that it's ok if Mk-2 is abandoned because most of the changes are incorporated into Mk-1A, I would ask this: What good is an air-refueling probe to increase the LCA's range (Mk-1A) without an onboard oxygen generation system (OBOGS) which was slated for Mk-2? The gains with just in-...
by PratikDas
04 Jun 2017 13:44
Forum: Trash Can Archive
Topic: Su-30MKI: News and Discussion - August 9, 2014
Replies: 4118
Views: 1228178

Re: Su-30: News and Discussion - August 9, 2014

^ "populated areas" ? :shock: Sir. I think you are missing quite a lot of things. Geography for one. My memory has failed me. I thought I had read of populated areas in one of the many news reports and tweets about this incident and now I can't find any of them. Clearly, I misremember. Al...
by PratikDas
04 Jun 2017 13:07
Forum: Trash Can Archive
Topic: Su-30MKI: News and Discussion - August 9, 2014
Replies: 4118
Views: 1228178

Re: Su-30: News and Discussion - August 9, 2014

They were neither at zero altitude or zero speed so this has nothing to do with zero-zero ejection seats May not have been zero altitude but the understanding is that the ejection was left till the last moment to avoid crashing into populated areas, so the altitude above ground at the time of eject...
by PratikDas
03 Jun 2017 14:30
Forum: Trash Can Archive
Topic: Su-30MKI: News and Discussion - August 9, 2014
Replies: 4118
Views: 1228178

Re: Su-30: News and Discussion - August 9, 2014

Is this a tragedy that zero-zero ejections seats could've averted?
by PratikDas
01 Jun 2017 10:56
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

Cross-posting from the Indian Military Aviation thread: Sputnik: India Inaugurates Aeronautical Test Range for Next Gen Fighter Jets, UAVs 29.05.2017 Soon to be home to India’s ongoing aeronautical projects, Defense Minister Arun Jaitley inaugurated the newly-built 2.2-km-long aeronautical test rang...
by PratikDas
01 Jun 2017 10:53
Forum: Military Issues Archive
Topic: Indian Military Aviation - 21 Sept 2015
Replies: 4456
Views: 1027586

Re: Indian Military Aviation - 21 Sept 2015

Sputnik: India Inaugurates Aeronautical Test Range for Next Gen Fighter Jets, UAVs 29.05.2017 Soon to be home to India’s ongoing aeronautical projects, Defense Minister Arun Jaitley inaugurated the newly-built 2.2-km-long aeronautical test range (ATR) [runway] of the Defence Research and Developmen...
by PratikDas
24 May 2017 04:08
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

scramble time of 4 minutes has been demonstrated on the Tejas. The exact quote from ADA's Annual report from 2016. ORP scramble achieved a time <4 minutes and further refinement is in progress. Typical Operational Readiness Point (ORP) scramble practiced on Tejas (LSP7 & LSP8). Time achieved le...
by PratikDas
23 May 2017 08:00
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

Thank you, Shiv ji. I did confuse turn around time and time to scramble.
by PratikDas
23 May 2017 01:11
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

Is there any evidence, even anecdotal, to suggest that it might be possible to scramble the LCA faster than any other fighter aircraft in the IAF? Answering my own question... Maintainability For the IAF, which must mount multiple missions every day with each Tejas fighter, easy "maintainabili...
by PratikDas
22 May 2017 21:22
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

ashishvikas wrote:5 LCAs in some IAF Base at some unknown locations.. (Source - DFI)

https://ibb.co/gwaSOF
Thank you, Ashish!

Is there any evidence, even anecdotal, to suggest that it might be possible to scramble the LCA faster than any other fighter aircraft in the IAF?
by PratikDas
18 May 2017 22:47
Forum: Science, Economics & Technology Forum
Topic: India's Power Sector
Replies: 1712
Views: 486044

Re: India's Power Sector

http://www.news.pitt.edu/news/new-study-shows-solar-power-s-potential-and-limits-india New Study Shows Solar Power’s Potential and Limits in India PITTSBURGH—In an effort to improve access to electricity in India, where an estimated 244 million people do not have electricity , a team with Pitt ties...
by PratikDas
18 May 2017 00:57
Forum: Trash Can Archive
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1530846

Re: Indian Space Programme Discussion - Sept 2016

Trust Indian Express to write "Gigabytes per second" when they should've written Gigabits per second.
by PratikDas
17 May 2017 03:54
Forum: Trash Can Archive
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1530846

Re: Indian Space Programme Discussion - Sept 2016

A brief but good video of the launch of GSAT-9, South Asia Satellite with GSLV-F09 emTckTGddM0 I agree that full motion HD from the spacecraft would be wonderful and even more inspirational. At this stage I'm using up wishes for the successful launch of GSLV Mark-III, but perhaps we should aim highe...
by PratikDas
08 May 2017 13:06
Forum: Trash Can Archive
Topic: India Border Watch: Security and Operations
Replies: 4479
Views: 1225942

Re: India Border Watch: Security and Operations

Definitely not the video from December 2016. Let me see if something from about a year ago looks similar

Update: didn't find anything to suggest that the new video is from a previous incident

by PratikDas
08 May 2017 10:57
Forum: Trash Can Archive
Topic: India Border Watch: Security and Operations
Replies: 4479
Views: 1225942

Re: India Border Watch: Security and Operations

Neela wrote:First 40 secs. A window(?) of the bunker was p r e c i s e l y hit.
Only the first 20 seconds is of a propelled weapon. All subsequent explosions seem to be of ballistic projectiles.

Any idea what the first weapon is?
by PratikDas
08 May 2017 10:27
Forum: Trash Can Archive
Topic: India Border Watch: Security and Operations
Replies: 4479
Views: 1225942

Re: India Border Watch: Security and Operations

Video from another forum S2QlvglMKAA The first section of the video from 0:02 to 0:19 seems to be of some kind of tracking missile and not just a RPG. It seems to correct its trajectory. Does anyone have ideas on what it might be? BTW, this twitter thread has good info: http://i.imgur.com/vSLks2Hl....
by PratikDas
04 May 2017 11:22
Forum: Science, Economics & Technology Forum
Topic: India's Power Sector
Replies: 1712
Views: 486044

Re: India's Power Sector

PratikDas, If you normalize for per capita incomes, then electricity prices per KWHr in India is very expensive in terms of gobbling up family income. I would also argue that if solar power becomes more prominent, then power price per KWHr will only increase. Completely agree with the high price of...
by PratikDas
04 May 2017 09:05
Forum: Science, Economics & Technology Forum
Topic: India's Power Sector
Replies: 1712
Views: 486044

Re: India's Power Sector

A comparison of India and USA electricity retail prices in US cents: Click for high-res http://i.imgur.com/Q6GUdMTl.png USA average in this dataset is 10.93 cents/kWh India average in this dataset is 17.66 cents/kWh Interactive link Since every bar isn't titled in the screenshot for lack of space, y...
by PratikDas
29 Apr 2017 07:15
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 6376
Views: 2050289

Re: Kaveri & aero-engine discussion

A good intro to jet engine screech in relatively simple language here: Screech Tones in Supersonic Jets An extract: Screech Suppression Some surprisingly simple techniques work. One is to put a baffle around the periphery of the jet. This inhibits the feedback path of the sound, and thus breaks the ...
by PratikDas
03 Apr 2017 08:51
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

Who is going to mount something right straddling the joint of two panels? Looks like something just kept there. Those bars of soap have been seen in flight! [and this was brought to the attention of the forum by someone else, just can't remember who] Click for hi-res http://i.imgur.com/6JNRbijl.jpg
by PratikDas
25 Mar 2017 05:56
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 6376
Views: 2050289

Re: Kaveri & aero-engine discussion

The TU-142M is retiring and giving way to the P8I. Could it make a Kaveri testbed?

Image

Image
by PratikDas
21 Mar 2017 22:16
Forum: Military Issues & History Forum
Topic: UAVs, Drones, Remote Surveillance Tech
Replies: 2937
Views: 1025226

Re: LCA: News & Discussions - October 2016

HAL has gone crazy. It is fine to provide youngsters with a say. But there should be some hand holding. Tejas UCAV for high risk strike role!!! What are cruise missiles for? Please concentrate on getting MK1A ready in time. I have a theory. With the low tolerance to accidents of risk-averse SDREs, ...
by PratikDas
18 Mar 2017 23:17
Forum: Military Issues & History Forum
Topic: Kaveri & Aero-Engine: News & Discussion
Replies: 6376
Views: 2050289

Re: Kaveri & aero-engine discussion

Was anyone else impressed that India's CEMILAC has people of Gouda ji's calibre? I certainly was. CEMILAC has a very difficult mandate - accepting so much responsibility through certification and, perhaps, getting no love from the developer community for being that shrewd examiner. With the quality ...
by PratikDas
17 Mar 2017 21:59
Forum: Military Issues Archive
Topic: Indian Military Aviation - 21 Sept 2015
Replies: 4456
Views: 1027586

Re: Indian Military Aviation - 21 Sept 2015

- A lot of challenges in designing CLAW for UAV considering that there is no man to deal with the contingency in case of failure of data link or some component failure. First flight was delayed by months just for this reason, how to cover data link loss situation during first TO. Thank you for the ...
by PratikDas
15 Mar 2017 21:32
Forum: Trash Can Archive
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1530846

Re: Indian Space Programme Discussion - Sept 2016

prasannasimha wrote:You will get a delay like it or not. They ahve just recently done some qualification tests. No one will take a chance with GSLV Mk 3
I'd have to agree.
by PratikDas
14 Mar 2017 04:11
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4679
Views: 1305820

Re: Indian Missiles and Munitions Discussion - June'14

So for the Agni-5, is it the modifications that are causing the extra trials ? If it were faulty, something would come out. Hope it is modified to carry MIRVs soon, and tested quickly. One A-5 test a year is very slow. A5 development started at that time where tensions on N & NE borders were ru...
by PratikDas
16 Feb 2017 23:01
Forum: Trash Can Archive
Topic: Indian Military Helicopters
Replies: 5318
Views: 2069365

Re: Indian Military Helicopters

Khalsa wrote:
Indranil wrote:I don't know what is it about LUH, but it has grown on me like a moss.
Hopefully its about to go Viral
:D

This is turning out to be an amazing Aero India. Kudos to the teams working hard to make it happen.

Image
by PratikDas
16 Feb 2017 06:11
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

@livefist: So, the first 2 @GEAviation F414 engines for the LCA Tejas Mk.2 arrived earlier this month. 8 ordered. http://www.livefistdefence.com/2017/02/revealed-the-indian-lca-navys-big-fight-back.html … #AeroIndia2017 It's great that two engines have arrived! Two GE F414 engines — one for the AF ...
by PratikDas
15 Feb 2017 21:11
Forum: Mil-Tech Archive
Topic: AMCA News and Discussions
Replies: 3310
Views: 879840

Re: AMCA News and Discussions

Karan M wrote:Upward canted AESAs are de jure on stealth fighters as are frequency selective radomes.
Thank you
by PratikDas
15 Feb 2017 13:04
Forum: Mil-Tech Archive
Topic: AMCA News and Discussions
Replies: 3310
Views: 879840

Re: AMCA News and Discussions

How difficult is to put swivelling base for the panel..?? Mechanically is no brainer. SW wise as well, I can't think why it should be a big challenge. But I know very little about Radars. It's certainly harder than building an AESA with a static panel, which in itself is a challenge. The Uttam stil...
by PratikDas
15 Feb 2017 12:43
Forum: Mil-Tech Archive
Topic: AMCA News and Discussions
Replies: 3310
Views: 879840

Re: AMCA News and Discussions

Does it look like the AESA panel in yellow is pointed upwards there? I always thought they have a mechanical articulation system to move AESA panel up-down. If you want it in A-G mode move it down, for interception mode, pitched up etc. This would increase angular range in azimuthal plane. CAPTOR i...
by PratikDas
15 Feb 2017 08:43
Forum: Mil-Tech Archive
Topic: AMCA News and Discussions
Replies: 3310
Views: 879840

Re: AMCA News and Discussions

Indranil wrote: Image
Does it look like the AESA panel in yellow is pointed upwards there?
by PratikDas
15 Feb 2017 05:21
Forum: Trash Can Archive
Topic: Aero India 2017 - Feb 14 - 18
Replies: 397
Views: 105574

Re: Aero India 2017 - Feb 14 - 18

Cross-posting from LCA thread:

Image
Indian Air Force ‏@IAF_MCC: CAS ACM BS Dhanoa on top of LCA Tejas after his sortie at Yelahanka today during Aero India 2017
Image
by PratikDas
15 Feb 2017 05:18
Forum: Trash Can Archive
Topic: LCA: News & Discussions - October 2016
Replies: 4124
Views: 1203165

Re: LCA: News & Discussions - October 2016

Image
Indian Air Force ‏@IAF_MCC: CAS ACM BS Dhanoa on top of LCA Tejas after his sortie at Yelahanka today during Aero India 2017
Image
by PratikDas
14 Feb 2017 00:35
Forum: Science, Economics & Technology Forum
Topic: Physics Discussion Thread
Replies: 2917
Views: 4882695

Re: Physics Thread.

Not in the physics profession, so take my reply FWIW and you probably may be aware of this and might be looking for a deeper explanation/answers. There is something called as Event Horizon (sort of no escape zone) for all black holes. Once you are inside the event horizon, nothing can escape includ...