Bharat Rakshak

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Derailment near Kanpur,

The new LHB coaches have better safety features, no telescoping of coaches seen, no crumpling either of the bogies, for a train traveling at 100kmph people walked away just with injuries, a major improvement

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With internet frequently being cut in PoK, the first round of info is getting suppressed, maybe India should setup sats for mobile internet connectivity on the lines of Iridium, of course areas of conflict that we are interested in get it for free. US flies aircraft that acts as a virtual cell phone...

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On defensive side we need an architecture for sats to be threat aware, Flock-A kind of microsats observing the sat from a range of few kms much like a CCTV for kinetic threats and co-orbital mode of attack, reminds the closely spaced Chinese trio of sats, either they are for triangulation or can hav...

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The two sats that Chinese built and launched for TSP are the same ones that are being used to watch over post Pulwama operations? one would expect that but could well be just an assumption. One of those sats is said to be X-band, maybe similar to Israeli origin Risat2 so, why did they target Risat1 ...

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With the PSLV 4th stages receiving the Prithvi status, they should be doing docking studies between the PSLV 4th stages, and MARV as well

maybe see if they can connect to the GSAT-6A capsule ...

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One of the A4 tests, it is said to have reached 800km altitude, just to reinforce the message to the north west neighbor they should make the ASAT reach an electronic target at higher altitude while intersecting the orbit of one of their sat a few hours ahead of the sat passing that point over India.

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Have a slightly different take from the above article, so far no official version is released, In the Lion Air crash, the autopilot was disengaged but the MCAS is an independent module (fits in with the new design requiring it regardless of whether autopilot is engaged or not) and pilots were not ev...

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With other aircraft safely flying, I don't think that was an unsolved problem. Redundancy is very basic, isn't. MCAS was introduced to solve the stall problem should the pilots become disoriented and not realize it, a learning from the Air France crash flying in bad weather from Brazil. if autopilot...

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With the AoA sensor as a single point of failure, what does a software patch promised by April 2019 help? turn off MCAS as well if the autopilot disengages. And I thought these critical software always go through model checking.

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Back to the Mi-17 crash, the hole in the tail boom does not seem to be due to explosion in proximity which is expected of RPGs, Manpad or even an AAM, and level penetration in the horizontal plane, its not from ground fire either. Unless its a coincidence the clinical placement of the shot where the...

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btw, RoE cannot be static once the PAF ingress happened, its not defensive any more Here’s what happened on the day when PAF jets were chased out by IAF planes – Minute by minute details 9:52 AM – Ten F-16 jets take off from three Airbases in Pakistan, which is detected by Indian NETRA and Northern ...

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BVRs fired into TSP airspace don't have the issue of targeting civilian airliners in own airspace, they fired one or more BVRs anyways, when AMRAAMs were sold/gifted some congressmen mentioned that in case of Indo-Pak hostilities this deal only prolongs the war by a week and here you had 8 f-16s clo...

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From Pulwama to Balakot: A new Line of Control New Delhi also believed that Beijing would not react negatively as long as Chinese interests, including its infrastructure, and personnel who are part of the China-Pakistan Economic Corridor, were not targeted. “Any limited, coercive action, that does ...

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Can they de-risk the AMCA wing, where the rear of the wing is curved, by trying it out on the LCA Navy? I don't know about wing loading but drag was a concern given the engine thrust

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Even US who previously used to directly jump to restraint 'so as to avoid war in south asia' have changed their tune, 'Washington is telegraphing here is its willingness to support a low-grade, limited use of force meant to send a strong message to Pakistan.' 'Perhaps something along the lines of th...

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Pulwama encounter: Gunbattle dragged on as militants shifted from one house to another

Explains the sequence of events

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Pulwama attack signals shift in Pak strategy

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3 terrorist, stay in two different places. Hit when you see a group they have used this MO before too, the cordon started around 2:30am per news reports, initial contact fire confirmed the terrorists were there and after a lull of 3 hours the assault started, perhaps morning by then, the main conce...

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Just when you thought that Security forces have the valley covered and US troop withdrawal from Afg. would hardly make an impact over here, this happens as if to disprove that confidence.

OPINION | It’s Not Military’s Job to Plan Sub-Conventional War in Enemy Territory, Time for Govt to Wake Up

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This is a tweet thread to ponder over What was the key objective #pulwama ? Was it to draw India into the Afpak chessboard, draw India into middle east quagmire Was it to dampen relations between India & Pakistan & exit India from the space (investments & play) Was it to elicit a reacti...

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Third Railway bridge across River Godavari at Mancherial commissioned as part of Balharshah-Kazipet third line (Delhi-Chennai line tripling). 70 km of Balharshah-Kazipet third line will be commissioned by Feb 2019. This new bridge across the Godavari is the major project on this third line, so good...

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Does the IR use AI in any of its operations planning?

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MoD websites now on Indian servers As all these defence public sector undertaking and ordnance factories are increasingly relying on information technology, a sound, robust and resilient cyber-security infrastructure is the priority. “We want cyber security standards on a par with global best pract...

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Would a diesel electric drive in Arjun reduce its weight? as transmission weight is reduced. Even if army is going to put hurdles, if they can offload technology to private sector, the goal of serving the nation is acheived as ISRO did with its Lithium Ion battery technology. The private sector on i...

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Karan M wrote:Add to this the recent clearance for digitizing 16 Pechora Firing Units. Pechora radars, by virtue of their bands are anti-stealth.

How are these comparable to Nebo-M radar of the S-400?
Can they be integrated with fire control radars based on ADGES network?

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This flex nozzles in all stages bit seems to suggest (just extrapolating) a K4 type 3d maneuvering trajectory to defeat Chinese ABMs. The SFDR development talks about a nozzle less booster on a SAM/AAM which demands it to be even more maneuverable. The paint scheme I believe was last seen on Prithvi...

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Algeria's requirement for 14 Mi-26 is surprising, when India was making do with four nos and with even less availability. Just a datapoint, Kishen Ganga project I believe used a TBM, a first in the Himalayas and they used about 150 trucks to ferry the equipment and some barely fit in the intermediat...

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Saurav Jha ‏@SJha1618 2h2 hours ago Decorated Veteran, Captain Ramaprasad (retd), who designed an indigenous combat management system for submarines explains why COMCASA is a bad idea: COMCASA – Should India Sign? - By Captain Ramaprasad Thanks for the clarifying article. Can India not have multipl...

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Singha wrote: L&T launcher from livefist

How different is the above config from the concept shown here, starting at 1:28

https://www.youtube.com/watch?v=0acJ3xyhaJo

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These installations are at such vast places, and taking a cue from solar power enabled Cochin airport, most radars both mil and civilian that operate 24/7 can use solar power during peacetime

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How did the IAF manage without affecting civilian traffic?

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8,We have received the approval to prove unmanned technologies like auto take-off and landing on LCA for future uses. the unmanned version will sport flush air data system technology for stealth features. the design of the front also will be modified. the project will begin immediately after the fo...

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to stabilize the 'relay' sat which is possibly a microsat, http://www.thehindu.com/news/international/the-indian-hand-in-a-french-satellite/article22716332.ece Mr. Lapeyrere and his team are trying to reduce PicSat’s spin by providing torque through on-board magnetorquers. Picsat is expected to beco...

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Mi8 rolling landing

full braking on touch down maybe then can be done with short strips if hover is an issue at altitude.

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It seemed like the pilot was attempting a landing flare, but the heli didn't respond, maybe not enough lift, engine pitch increased at the last moment and it landed on uneven ground not any flat surface possibly overshot the helipad.

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http://www.dailypioneer.com/top-stories/ultra-clean-petrol-diesel-in-delhi-from-tomorrow.html According to IOC, for petrol engines, one of the most critical specifications is Research Octane No. (RON), which has improved from 88 in BS-II to 91. It is at par with regular 91 octane gasoline (petrol) ...

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jaysimha wrote:Border Surveillance System - DRDO
https://www.drdo.gov.in/drdo/English/BOSS.pdf

why aren't they going the AESA route yet? and part of its goal is to detect micro drones

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The 'stages' I remember that the Jawans had to go through from news reports, Chance upon infiltration, engage them with no distinct advantage Then there was intel, so they used to trek in the hilly areas for tens of hours to intercept With intel, they started reaching the intercept areas faster with...

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Glad to hear about the repeat success of the cryo engine stage.

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Vips wrote: IAF RFQ for 83 aircrafts - Type MK1A filled by HAL on March 13th 2018. SP 10 on assembly line,looks at least 2-3 months away from flying...

The talk of unilateral upgrade by Raju sir sounds like Bachelor freedom

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