Search found 37 matches

by sas
27 Mar 2019 15:33
Forum: Military Issues & History Forum
Topic: Indian ASAT Test
Replies: 868
Views: 104519

Re: Indian ASAT test

In 1998 it was operation Shakti.

Now, in 2019 it's mission Shakti. :D :D :D
by sas
19 Feb 2019 20:50
Forum: Military Issues & History Forum
Topic: Aero India 2019
Replies: 243
Views: 41263

Re: Aero India 2019

I am planning to be there for Aero India 2019 either on 21st or 22nd. What is the best way to commute from Bangalore to Yelahanka air Force station avoiding traffic ? Is there any sub-urban train from Bangalore to Yelahanka. Thank you. there is no suburban train from bangalore to yelahanka. you can...
by sas
19 Feb 2019 12:12
Forum: Military Issues & History Forum
Topic: Aero India 2019
Replies: 243
Views: 41263

Re: Aero India 2019

I am planning to be there for Aero India 2019 either on 21st or 22nd.

What is the best way to commute from Bangalore to Yelahanka air Force station avoiding traffic ?

Is there any sub-urban train from Bangalore to Yelahanka.

Thank you.
by sas
25 Mar 2018 14:01
Forum: Mil-Tech Archive
Topic: MBT Arjun - News and Discussions
Replies: 1820
Views: 270140

Re: MBT Arjun - News and Discussions

Trikaal wrote:You make the hypocrisy being practiced stand out naked with your comments. I have a noob question though, what are the bracket weight figures and why are they more than the tank weight?


^^^^
Metric Tonne (Non-SI) vs Short Ton (US)
by sas
29 Nov 2017 01:00
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

https://pbs.twimg.com/media/DPtYM32VwAAWREN.jpg ^^^^^HE-15, 15CDV6, Nitramine, Glass phenol and about TIG or A-TIG welding of dissimilar metals, all these key words along with a few images of P vs T curves and booster and sustainer drawings are given in a 22 year old Defence Science Journal paper p...
by sas
29 Nov 2017 00:59
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Apologies for posting such detailed specs.

Indranil sir, yes few highlights should have been enough, will refrain from posting such detailed images.
by sas
28 Nov 2017 01:26
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

PROSPINA/NAG:-Propulsion components specs 1) BOOSTER CASING https://i.imgur.com/zVUfEkz.jpg ^^^^^^^^^ -Nitramine is used as booster grain. Grain geometry is hollow tube with radial burning configuration. -Casing liner is glass phenol. NOTE:- Booster is HE-15 2014 series Al alloy, whereas canted noz...
by sas
28 Nov 2017 01:23
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

PROSPINA/NAG There was a recent bid dated 20/10/2017. Last date for depositing the bid was on 20/11/2017. Bid opening date 21/11/2017. The bid was for supplying 30 sets of fabricated booster and sustainer casings and other motor sub assemblies along with raw material 15CDV6 steel rod. Probably PROS...
by sas
07 Nov 2017 13:33
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Tweet from Saurav Jha

Saurav Jha‏ @SJha1618 2m2 minutes ago
Good day today. The Nirbhay GLCM test went well. INS validated. Apparently traversed all designated waypoints.


https://twitter.com/SJha1618/status/927807803682463744

:D :D :D :D :D :D :D
by sas
12 Oct 2017 23:56
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

https://pbs.twimg.com/media/DLcKG_9VwAAsG_1.jpg http://i.imgur.com/N4LcdgH.png ^^^^^^^^^^ Once again look at the front section of the air frame in white colour it's a multi-section solid having circular bulkhead with truncated square section of the air frame. It has a circular bulk head of radius 8...
by sas
12 Oct 2017 18:49
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

sas, What is the guidance for SAAW? It has 100 km range and must have INS/GPS with initial position fed by the aircraft. Incidentally wiki page for SDB has link to SAAW!!!! SAAW is a precision guided glide bomb, it's most likely to be used against static targets and case hardened structures, hence ...
by sas
11 Oct 2017 23:46
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

SAAW's sequence of flight profile could be like 1) SAAW air dropped from launch platform 2) Deploys it's wings and glides close towards the target (air field runway) 3) Then after reaching certain minimum altitude over the target, parachute deploys 4) Parachute creates drag and drag in turn creates...
by sas
11 Oct 2017 23:36
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

SAS, I dont think the SAAW is just meant to be used against runways. Airfields have many structures. IMHO, its a multirole long range glide bomb. Note mention of blast fragmentation and plate penetration. That is directed against parked aircraft. It also mentions penetration of RCC, again, to get t...
by sas
07 Oct 2017 01:22
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

https://pbs.twimg.com/media/DLcKFyrVYAAn5xt.jpg ^^^^^^^^^^^^^^^^^^^^^^^^ Aft end it's not a square nozzle. That square slot looks like a slot opening for deploying armament parachute. Nozzles having rectangular cross-sectional divergent portion has it's own set of merits, when compared to circular ...
by sas
03 Oct 2017 17:09
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Hellfire does not have version equivalent to Prospina i.e. there is no IR Guided version of Hellfire. We are watching the arguments of cost to Kill Nag similar to the arguments used against HTT-40. Incidentally if you google for actual deals for Spike and Javelin then cost of these much smaller mis...
by sas
03 Oct 2017 15:20
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Iterative designs of TOW/BGM never had fire-and-forget capability. TOW/BGM sensors were 1) SACLOS for guidance (Line-of-Sight) 2) IR/Xenon receiver for tracking IR and Xenon beam from strobes. 3) MAGNETIC SENSOR, OPTICAL-EMI detector and some variants had microprocessor for proximity detection. Unli...
by sas
01 Oct 2017 20:28
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Indian Army wants more tests before ordering homemade anti-tank missile https://www.defensenews.com/land/2017/09/29/indian-army-wants-more-tests-before-ordering-homemade-anti-tank-missile/ Indian Army wants more tests before ordering homemade anti-tank missile https://www.defensenews.com/land/2017/...
by sas
29 Sep 2017 21:27
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Looks like MTCR like regime for HGV and HCM is in formulation. Link from AVIATION WEEK article http://aviationweek.com/defense/can-spread-hypersonics-be-slowed Can Spread Of Hypersonics Be Slowed? Jen DiMascio | Aviation Week & Space Technology Sep 29, 2017 Ripe for Restriction One day after the...
by sas
18 Sep 2017 19:49
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

I seem to have missed this in Feb HELINA air-launched anti-armour missile exiting its launcher on a Rudra https://twitter.com/livefist/status/566229552691548160 The HELINA seems to have booster behind the sustainer, unlike the Nag. Seems to be major propulsion system modification. Yes, HELINA has b...
by sas
01 Sep 2017 22:49
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

ramana wrote:Sas,
Can you compare the Prithvi engine to the SA-2 Guideline engine?


Sir, In a day or two, I can collate all the required data on Prithvi's LP motor vs SA2's S2.711.
by sas
01 Sep 2017 00:07
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

i read on brf long ago that flankers have a complex cooling system that uses fuel flows to cool like above. do all fighters use such technique? most seem to have bleed air for exhaust cooling. For avionics it's mostly bleed air.In some cases liquid coolants are used. Aircraft engines are both liqui...
by sas
31 Aug 2017 23:43
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Image

^^^^^^
Looks like those perforations are from bearing shrapnel.
by sas
31 Aug 2017 23:37
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

https://pbs.twimg.com/media/DITTJV9V4AI7eXF.jpg ^^^^^^^^^^^^ Intricate plumbing points to liquid motor. Looks like a prithvi. Looks like a PII target. The two engines are similar, including the regenerative cooling (or turbopump exhaust?) manifold ring around the nozzle http://www.b14643.de/Spacero...
by sas
28 Aug 2017 23:46
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions - May 2017

Image
Image
Image

^^^^^^^^^^^^
Intricate plumbing points to liquid motor. Looks like a prithvi.
by sas
28 Aug 2017 00:16
Forum: Military Issues & History Forum
Topic: Indian Nuclear Submarines -3
Replies: 1425
Views: 182799

Re: Indian Nuclear Submarines -3

Chaiwala Alert : The current maal included multiple waar heads, one k5 test done. Watch out for more tests in near future. Probably K4 based on A3 diameter. Is it MRV or MIRV ? Have we openly tested MIRV during any of the K4 tests ? On the table we have all the essential maal for MIRV's, but real t...
by sas
22 Jun 2017 00:28
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions-May 2017

Can any one id the missile in this video link close to 19 min mark ? https://www.facebook.com/TejasMrca/videos/1556612511068860/ TEL is a BEML-TATRA 8x8 VVL A single tail fin is visible in the video, other than that a conduit is visible in the mid-section of the missile. Nice find ...... Looks like...
by sas
21 Jun 2017 23:44
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions-May 2017

Can any one id the missile in this video link close to 19 min mark ? https://www.facebook.com/TejasMrca/videos/1556612511068860/ TEL is a BEML-TATRA 8x8 VVL A single tail fin is visible in the video, other than that a conduit is visible in the mid-section of the missile. Nice find ...... Looks like...
by sas
17 Jun 2017 22:12
Forum: Trash Can Archive
Topic: Indian Missiles News & Discussions - May 2017
Replies: 5116
Views: 1058259

Re: Indian Missiles News and Discussions-May 2017

Can any one id the missile in this video link close to 19 min mark ?
https://www.facebook.com/TejasMrca/videos/1556612511068860/

TEL is a BEML-TATRA 8x8 VVL
A single tail fin is visible in the video, other than that a conduit is visible in the mid-section of the missile.
by sas
27 Feb 2017 22:58
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 3807
Views: 757648

Re: Indian Space Programme Discussion - Sept 2016

50th High Performance Motor Case (HPS3) for Third Stage of PSLV Realised http://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised http://www.isro.gov.in/sites/default/files/article-files/node/6837/realised_motor_case.jpg http://www.isro.gov.in/sites/default/files/ar...
by sas
25 Feb 2017 23:12
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

On recent PDV interceptor test http://www.delhidefencereview.com/2017/02/25/hit-kill-successfully-demonstrated-drdos-pdv-interceptor/ Some description about the target vehicle in the recent test Incidentally, a new interceptor of the class of PDV also requires a new MRBM class target missile for ef...
by sas
25 Feb 2017 22:50
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

HSTDV (from 2016 tenders): From the following image of a rig, you can see the cross section of the HSDTV http://i.imgur.com/nGz1irX.png At its widest it is about 850 mm wide and 400 mm tall. Length of article is roughly 3 mtrs. ^^^ Thin wall cylinder with clevis mounting on either side and a roller...
by sas
30 Jan 2017 23:23
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

I do have an ask., I think the USN submarines use a separate gas generator and I do not think DRDO/IN went that route. I believe that K-15 and K-4 are ignited right in the tubes and the launch covers open up and the rocket propels itself through the water. It appears that there is a "launch bo...
by sas
29 Jan 2017 01:06
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

Image

Above slide grab is likely to be the K5 SLBM with 3 stage and MIRV configuration.
by sas
29 Jan 2017 01:03
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

http://www.defenseworld.net/news/1830/India_To_Test_Long_Range_Submarine_Launched_Nuclear_Missile_Next_Week#.WIdG3dJ96M8 The indigenously built underwater missile, having a strike range of around 3,500 km, will be test fired from a submerged pontoon, which is almost identical to a submarine on Janu...
by sas
12 Jan 2017 11:55
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

Another high res photo of Nirbhay. One can notice that wing slot door is hinged. CAM could be one possible type of actuator for opening and closing of the wing slot door. http://o.aolcdn.com/dims5/amp:590ef1fbb3ec48ced1cfff97456abd2bb998a691/t:2000,1000/?url=http%3A%2F%2Fo.aolcdn.com%2Fhss%2Fstorage...
by sas
12 Jan 2017 11:40
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

ramana wrote:sas, Thanks for the many pictures of wing pivot system for aero vehicles and the Nirbhay videos.


A few bits of information on wing deployment mechanism and Nirbhay. I am thankful for immense gyan one can get from this forum :) .
by sas
09 Jan 2017 19:53
Forum: Trash Can Archive
Topic: Indian Missiles and Munitions Discussion - June'14
Replies: 4681
Views: 689494

Re: Indian Missiles and Munitions Discussion - June'14

Nirbhay's wing deployment mechanism. (Apologies if posted earlier in this thread). -->>Nirbhay employs a centrally pivoted mono wing. Given the space and weight constraints, mechanism for deploying the wing would be simple and tested for high order of repeatability. Found these links in google pate...

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