Search found 1906 matches
- 04 Feb 2020 12:59
- Forum: Military Issues Archive
- Topic: Modi Appoints Chief of Defence Staff (CDS): News and Discussions
- Replies: 216
- Views: 112327
Re: Modi Appoints Chief of Defence Staff (CDS): News and Discussions
Re-posting from the ABM/Missile Defence thread with permission. Russia Begins Production of S-400 Air Defence Systems for India I've often wondered why Indian defense deals come with so many notifications, as if begging for opposition. For example: 2014 Missile Monitor, Russian Air Force: India inte...
- 04 Feb 2020 12:54
- Forum: Military Issues & History Forum
- Topic: ABM/Missile Defense Discussion
- Replies: 1942
- Views: 584053
Re: ABM/Missile Defense Discussion
Russia Begins Production of S-400 Air Defence Systems for India MOSCOW (Sputnik) - Russia has begun production of S-400 air defence missile systems for India, Russian Industry and Trade Minister Denis Manturov said. <snip/> Previously, Rosoboronexport Director General Alexander Mikheev said that Ru...
- 28 Jan 2020 12:53
- Forum: Military Issues & History Forum
- Topic: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
- Replies: 428
- Views: 160436
Re: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
Abhibhushan ji, thank you for this. Puts to rest questions like, "how is this an attribute of the aircraft?" Hot refuelling is safety design factor. If you design the refuelling activity to be safe while the engine(s) are running then there is no bar to hot refuelling. HTT-40 has achieved ...
- 27 Jan 2020 05:57
- Forum: Military Issues & History Forum
- Topic: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
- Replies: 428
- Views: 160436
Re: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
Same old re-hashed arguments ad nauseum for a couple of decades now. Basically any excuse to justify inertia. This process works very well and is used more or less in the same way worldwide How many air forces have a basic trainer that can hot refuel and change crew while the engine is running? That...
- 27 Jan 2020 05:04
- Forum: Military Issues & History Forum
- Topic: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
- Replies: 428
- Views: 160436
Re: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
mea culpa. I was not clear. For the Indian Armed Forces, flight training is not some ad hoc process. For the Indian Armed Forces, it has a very specific laid down syllabus that is followed. The syllabus varies specifically as per the training being done. And in the Indian Armed Forces, deviations i...
- 27 Jan 2020 04:13
- Forum: Military Issues & History Forum
- Topic: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
- Replies: 428
- Views: 160436
Re: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
I think the suggested improvement is that instructor and trainee aren't limited to one sortie due to fuel load and can quickly get back in the air to try and improve upon technique used or not used in the earlier flight while that flight's experience is still fresh in the mind, so the trainee gets ...
- 26 Jan 2020 13:15
- Forum: Military Issues & History Forum
- Topic: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
- Replies: 428
- Views: 160436
Re: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
Video hereJayram wrote:https://twitter.com/HALHQBLR/status/1221075261371715585
Prashant Bhaduria is confirming Hot swap of crew as well. Check the link
https://twitter.com/prashantbhadori/status/1221331079056912384
- 26 Jan 2020 13:01
- Forum: Military Issues & History Forum
- Topic: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
- Replies: 428
- Views: 160436
Re: HTT-40 Basic Trainer Aircraft: News & Discussions - 08 September 2019
https://twitter.com/hvtiaf/status/1221104381220683782 ---> Little things that matter Big time. Hot refueling HTT-40. No other trainers possess. Continuous operations throughout the day. Only 1xTRS over 8-10 sorties during the day. Imagine graduating dozens of additional pilots every year with this ...
- 09 Oct 2019 02:25
- Forum: Military Issues Archive
- Topic: Tejas Mk.1 & Mk.1A: News & Discussions: 23 February 2019
- Replies: 3885
- Views: 1896645
Re: Tejas Mk.1 & Mk.1A: News & Discussions: 23 February 2019
To brag a bit, we are currently breaking our heads on how to dissipate something like 6 kilowatts from a small Aluminium brick, and maintain it at some where less than 40 Deg C. Not for flight though. But it may help bring flights down one day. Dileep ji, you probably already know about this but pl...
- 25 Sep 2019 11:46
- Forum: Military Issues & History Forum
- Topic: Tejas Mk2 Medium Weight Fighter: News & Discussion - 23 February 2019
- Replies: 2731
- Views: 1137558
Re: Tejas Mk2 Medium Weight Fighter: News & Discussion - 23 February 2019
Dangerously close to the engine intakes for me.
- 25 Aug 2019 23:39
- Forum: Military Issues Archive
- Topic: Tejas Mk.1 & Mk.1A: News & Discussions: 23 February 2019
- Replies: 3885
- Views: 1896645
Re: Tejas Mk.1 & Mk.1A: News & Discussions: 23 February 2019
Rs 250 crore - Rs 275 crore works out to what? USD $35 - $40 million per aircraft? Is my conversion match correct? So what changed that the price of each bird dropped by so drastically - Rs 175 Crores? Apparently HAL thought Price Gouging is not just done by the foreign suppliers, but it should too...
- 18 Mar 2019 12:01
- Forum: BR Nostalgia Archive
- Topic: Shri Manohar Parrikar condolence thread
- Replies: 108
- Views: 60234
Re: Shri Manohar Parrikar condolence thread
Manohar Parrikar and his wife Medha who succumbed to cancer in 2001 https://i.imgur.com/JTULXScl.jpg https://i.imgur.com/VBmOhyHl.png https://i.imgur.com/y26AkGTl.jpg https://i.imgur.com/9mf7Qi0l.jpg https://i.imgur.com/2Dw78kXl.jpg https://i.imgur.com/0lkPATkl.png https://i.imgur.com/VP6m42Vl.jpg h...
- 05 Mar 2019 13:17
- Forum: Military Issues & History Forum
- Topic: Indian Nuclear Submarines -3
- Replies: 2005
- Views: 595168
Re: Indian Nuclear Submarines -3
It's a nuclear sub and not for sale.hgupta wrote:Why are we paying $3 billion dollars for a ten year lease of a nuke sub? We should be buying it not leasing for that kind of money.
- 17 Feb 2019 03:04
- Forum: Military Issues Archive
- Topic: Pulwama Attack
- Replies: 2282
- Views: 466373
- 08 Feb 2019 12:04
- Forum: Trash Can Archive
- Topic: Indian Space Program: News & Discussion - Sept 2016
- Replies: 4447
- Views: 1559748
Re: Indian Space Program: News & Discussion - Sept 2016
It's pretty goodSingha wrote:^^ then how come Ariane5 uses LH2/LOX mix for all its engines? someone was saying thats the exilir of life and the most tfta combo of fuel.
Source:http://www.rocket-propulsion.info/resources/articles/LPRE.pdf
- 08 Feb 2019 03:42
- Forum: Trash Can Archive
- Topic: Indian Space Program: News & Discussion - Sept 2016
- Replies: 4447
- Views: 1559748
Re: Indian Space Program: News & Discussion - Sept 2016
Prasanna ji, I found another paper on the metholox engine, same authors. It looks like that they are modifying the CUS engine. May be this is o shorten the time to get to a first prototype engine. But, I don't see why one would replace LH2+LOX with LCH4+LOX. Also, in my heart of hearts, I hope for ...
- 04 Feb 2019 07:01
- Forum: Strategy, Politics & International Relations Forum
- Topic: International Nuclear Watch & Discussion
- Replies: 1419
- Views: 264438
Re: International Nuclear Watch & Discussion
DOE Awards $111 Million to U.S. Vendors to Develop Accident Tolerant Nuclear Fuels January 31, 2019 WASHINGTON, D.C. – The U.S. Department of Energy’s (DOE) Office of Nuclear Energy (NE) has awarded $111.2 million to three industry partners to develop Accident Tolerant Fuels (ATF). General Electric...
- 04 Feb 2019 06:17
- Forum: Science, Economics & Technology Forum
- Topic: Indian IT Industry
- Replies: 1375
- Views: 533463
Re: Indian IT Industry
Posting on behalf of a friend who isn't on this forum but goes by the name synusthesia : 3SdSKZFoUa8 A Beautiful presentation of how C++ is being used on Mars Rover curiosity. A software engineer from JPL gave this presentation at a C++ conference. My Key takeways: C++ was chosen because JPL had a p...
- 29 Jan 2019 01:06
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1682092
Re: International Aerospace Discussion - Jan 2018
Seems like tumbling payload fairings to me.Austin wrote:Very interesting video from ISS Live Feed
UFO or Hoax? WATCH Mysterious Space Objects Buzz Across ISS Live Stream
https://sputniknews.com/viral/201901281 ... -sighting/
- 28 Jan 2019 08:35
- Forum: Trash Can Archive
- Topic: Indian Space Program: News & Discussion - Sept 2016
- Replies: 4447
- Views: 1559748
Re: Indian Space Program: News & Discussion - Sept 2016
A more relevant launch this January was successful.
Fireworks start at 30 minutes.
- 27 Jan 2019 06:04
- Forum: Trash Can Archive
- Topic: Indian Space Program: News & Discussion - Sept 2016
- Replies: 4447
- Views: 1559748
Re: Indian Space Program: News & Discussion - Sept 2016
I think C32 is just C25 but with more fuel. Not a new engine but a new stage with bigger tanks. Perhaps this is obvious to everyone.
- 26 Jan 2019 00:03
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1682092
Re: International Aerospace Discussion - Jan 2018
Elon Musk's pitch for stainless steel instead of composites: https://www.popularmechanics.com/space/rockets/a25953663/elon-musk-spacex-bfr-stainless-steel/ Ryan D’Agostino: You’ve been busy redesigning Starship. Elon Musk: Yes. The design of Starship and the Super Heavy rocket booster I changed to a...
- 22 Jan 2019 11:33
- Forum: Military Issues & History Forum
- Topic: INS Vikramaditya: News and Discussion
- Replies: 1604
- Views: 295135
Re: INS Vikramaditya: News and Discussion
Lashes on grandma
- 21 Jan 2019 15:18
- Forum: Mil-Tech Archive
- Topic: Indian Missiles News & Discussions - 17 Dec 2018
- Replies: 5960
- Views: 2350526
Re: Indian Missiles News & Discussions - 17 Dec 2018
K-15 test
K-4 test
Quite obviously two very different missiles.
K-4 test
Quite obviously two very different missiles.
- 21 Jan 2019 15:11
- Forum: Strategy, Politics & International Relations Forum
- Topic: Understanding the US - Again
- Replies: 7560
- Views: 1779159
Re: Understanding the US - Again
I'm not a US citizen but I feel qualified to opine thanks to my Bachelor Degree in Common Sense from the University of Being 40 Years Old that when it comes to a shutdown of the US government, the much revered US Constitution almost got it right but failed miserably - like a saddle point in math tha...
- 20 Jan 2019 11:50
- Forum: Mil-Tech Archive
- Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
- Replies: 3909
- Views: 1474774
Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
Tejas - LCA's Post 14th series produced Tejas, LA - 5014 had her maiden flight yesterday. The 13th member will follow soon. The competition between the two assembly hangars is intensifying. Competition, in one sense, indicates better days are ahead. https://www.facebook.com/tejas.lca/posts/210476366...
- 10 Jan 2019 05:08
- Forum: Trash Can Archive
- Topic: Indian Navy News & Discussion - 03 July 2018
- Replies: 3611
- Views: 1272998
Re: Indian Navy News & Discussion - 03 July 2018
nachiket wrote: The new Mumbai-Ahmedabad HSR being built with Japanese help is going to be integrated with the 155mm Dhanush howitzer with two guns mounted on the first and last coaches for self defense against stone throwers and cattle and trucks wandering onto tracks.
- 07 Jan 2019 23:36
- Forum: Military Issues & History Forum
- Topic: International Military Discussion
- Replies: 3007
- Views: 879272
Re: International Military Discussion
Israeli F-15 lands safely after losing canopy at 30,000 feet JERUSALEM: The crew of an Israeli air force F-15 warplane fought freezing temperatures and buffeting winds to bring their aircraft down after its cockpit canopy flew off at 30,000 feet, the military said on Monday. In a dramatic cockpit v...
- 07 Jan 2019 23:32
- Forum: Mil-Tech Archive
- Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
- Replies: 3909
- Views: 1474774
Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
There is no way that IAF/babus will pay more than 1.5x for MK1A than what they are paying for LCA MK1 FOC. This 400 crore per plane cannot be The flyaway cost. IAF/MOD created a committee to look into the price escalation by HAL for MK1A. Nothing has come out which suggest that the committee found ...
- 07 Jan 2019 11:42
- Forum: Mil-Tech Archive
- Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
- Replies: 3909
- Views: 1474774
Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
Is there any good news on the performance of the 2052 on the DARIN III Jaguars? Is it like having cataracts removed?Indranil wrote:Jaguar Ms have the 2032. Darin IIIs have the 2052s, IAF's first AESA in service.
- 07 Jan 2019 07:16
- Forum: Mil-Tech Archive
- Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
- Replies: 3909
- Views: 1474774
Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
So after some internal research I got permission and had autonomy to go with addition of certain alloys that inhibited coarse grain formation to a large extent into these alloys. The result HAL acceptance rates went up and mgmt were happy to see the rejection rate come down. Mgmt was also happy sin...
- 05 Jan 2019 07:25
- Forum: Mil-Tech Archive
- Topic: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
- Replies: 3909
- Views: 1474774
Re: Tejas Mk.1 & Mk.1A News & Discussions: 09 February 2018
ArjunPandit wrote:Thanks for making up my day, should we send a 324 tshirt to the retd admiral?
- 30 Dec 2018 12:31
- Forum: Military Issues & History Forum
- Topic: Russian Weapons & Military Technology
- Replies: 2093
- Views: 645150
Re: Russian Weapons & Military Technology
This is a start:Manish_P wrote:Public release cut-out of the Nuclear Powered Torpedo
Any translators here?
https://www.popularmechanics.com/military/weapons/a22537135/russias-nuclear-tsunami-apocalypse-torpedo-is-named-poseidon/
- 28 Dec 2018 00:58
- Forum: Military Issues & History Forum
- Topic: International Military Discussion
- Replies: 3007
- Views: 879272
Re: International Military Discussion
Mach 27 is 9.2 km/sec , To maintain those speed at 100-200 km altitude where HGV flies most of time and maintain maneuver in lateral and vertical movement for ICBM range as it flies needs a great capability in Hypersonic Aerodynamics and material/structural engineering because most RV would simply ...
- 28 Dec 2018 00:06
- Forum: Mil-Tech Archive
- Topic: Indian Missiles News & Discussions - 17 Dec 2018
- Replies: 5960
- Views: 2350526
Re: Indian Missiles News & Discussions - 17 Dec 2018
Regarding lofted trajectories and their technical purpose, as opposed to their operational purpose where one can use their imagination, this post from Haridas ji in the locked thread was short and sweet. Lofted trajectory: Max Q pressure Depressed trajectory: Max temperature Nominal trajectory: Max ...
- 27 Dec 2018 11:24
- Forum: Military Issues & History Forum
- Topic: US military, technology, arms, tactics
- Replies: 3160
- Views: 932288
Re: US military, technology, arms, tactics
It has some catching up to do given that its competitor has been flying for more than a year now and may upend its first flight by hitting its top cruise speed target of 280 knots around the same time. I’m not a pilot. Nevertheless, from an ease-of-use and operational-safety perspective I’d think t...
- 27 Dec 2018 10:34
- Forum: Military Issues & History Forum
- Topic: US military, technology, arms, tactics
- Replies: 3160
- Views: 932288
Re: US military, technology, arms, tactics
https://www.armytimes.com/resizer/oAa35l5z0VxCd9MlM_PkhsmCcLA=/1200x0/filters:quality(100)/arc-anglerfish-arc2-prod-mco.s3.amazonaws.com/public/B66P23SDNVAN7F3O2UOOYOKBR4.jpg https://www.armytimes.com/resizer/g7-kzDLMZxY95xjoLVuQjoxxpng=/600x0/filters:quality(100)/arc-anglerfish-arc2-prod-mco.s3.am...
- 25 Dec 2018 01:39
- Forum: Trash Can Archive
- Topic: Indian Space Program: News & Discussion - Sept 2016
- Replies: 4447
- Views: 1559748
Re: Indian Space Program: News & Discussion - Sept 2016
Thr video will be of least interest other than for PR. Its the telemetry data and voice transmission they will be worried about. Any higher speed video transmissions will be when they are ovuserhead. I watched Apollo and even for ISS video transmission is selective. IDSS is to reduce download to no...
- 24 Dec 2018 00:44
- Forum: Military Issues & History Forum
- Topic: Kaveri & Aero-Engine: News & Discussion
- Replies: 6393
- Views: 2102255
Re: Kaveri & Aero-Engine: News & Discussion
Excellent post, Dinesh ji!dinesh_kimar wrote:We airily talk about matching Ariane using SB stages.
Just 4 years back, 1800 kg was unobtanium.
With Kaveri, it's the same condition, the physics and the engineering.
Once it's done with 81 KN and 1100 kg weight, we can scale up.
- 24 Dec 2018 00:30
- Forum: Trash Can Archive
- Topic: Indian Space Program: News & Discussion - Sept 2016
- Replies: 4447
- Views: 1559748
Re: Indian Space Program: News & Discussion - Sept 2016
https://acadpubl.eu/jsi/2018-118-16-17/articles/16/77.pdf Article on IDRSS satellite system that we are launching Thank you for sharing this informative paper. I don't understand why they're aiming so low at 400 kbps for Human Space Program (HSP) video. https://i.imgur.com/mB5kQS9m.png To put the 4...