Search found 691 matches

by vsunder
30 Mar 2020 07:13
Forum: Military Issues & History Forum
Topic: The IAF History Thread
Replies: 1048
Views: 174725

Re: The IAF History Thread

Air Vice Marshal Chandan Singh Rathore(retd) MVC is no more. Then Gp. Capt. Chandan Singh along with Lt. Gen. Sagat Singh organized and executed the famous Meghna heli-lift in 1971. Using Mi-4 helicopters beginning 9th Dec in an operation involving flying 110 sorties over 36 hours 311 brigade was ai...
by vsunder
25 Mar 2020 20:51
Forum: Strategic Issues & International Relations Forum
Topic: Wuhan Coronavirus Resource Thread
Replies: 4152
Views: 306455

Re: Wuhan Coronavirus Resource Thread

https://ny.eater.com/2020/3/25/21193746 ... s-covid-19

Floyd Cardoz the chef is dead. Coronavirus. He owned Tabla and Bombay Bread Bar in NYC and hailed from Goa and very high profile in NYC.
by vsunder
09 Jan 2020 10:18
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2609
Views: 134150

Re: Physics Discussion Thread

^^ I did not move anywhere. A nice left over problem is to find the sharp value of the universal constant rigorously. The proof we give just proves there is a universal constant. We are looking at the Rayleigh number regime going to infinity so very large. The engineering and Physics literature as f...
by vsunder
08 Jan 2020 16:37
Forum: Technology & Economic Forum
Topic: Physics Discussion Thread
Replies: 2609
Views: 134150

Re: Physics Discussion Thread

There is a 65 year old conjecture supported by numerical simulations and experiments in the laboratory in Fluid Mechanics, more precisely in Rayleigh-Benard convection. https://en.wikipedia.org/wiki/Rayleigh%E2%80%93B%C3%A9nard_convection One can see these band patterns or hexagonal patterns in clou...
by vsunder
30 Dec 2019 18:59
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Suraj-san, envy your rides over in those curvy snouted beauties! Meanwhile, there is a move to get a semi-HSR going on from Trivandrum to Kasargode. I feel it is kind of a hare-brained one, with ideas of a greenfield track between Trivandrum and Kochi lightly thrown in :lol: Yours' truly stood up a...
by vsunder
23 Dec 2019 19:09
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

A trial of BOXN freight wagons took place on the WDFC on Dec 20th for a distance of 190km between Phulera and Ateli. The wagons were run at 110 kmph with an average speed of 86 kmph in both loaded and empty condition with 25ton axle load weight. Very few sections of the IR network allow such a 25 to...
by vsunder
14 Dec 2019 00:18
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Trial engine ran on EDFC on the up line between Bhadan--Bhaupur(Kanpur) on Dec 2nd. Down line will be completed hopefully by end of December as 500m is left for installation of part of a rail over rail flyover west of Etawah for Etawah bypass over the Delhi-Howrah mainline at Malajani. EDFC avoids E...
by vsunder
01 Dec 2019 04:56
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Here is a OMAC-Italy tutorial of what you see above ^^^^ Recall from the wave equation the wave speed of disturbances along a wire is of the order of (T/p)^{1/2} where p is the density of the copper wire mass/length and T the tension in the wire. So the tension should be such that the disturbances m...
by vsunder
30 Nov 2019 06:04
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Video presentation as to how Catenary cable is being strung via a mechanized process on the Western DFC. OHE on Western DFC is high mast to accommodate double stack container freight to Gujarat ports and JNPT. Contact wire is at 7.57m above rail level in all of Gujarat and Rajasthan wherever double ...
by vsunder
10 Nov 2019 20:25
Forum: Strategic Issues & International Relations Forum
Topic: The Ram Janmbhoomi Verdict: News and Discussion
Replies: 1043
Views: 94137

Re: The Ram Janmbhoomi Verdict: News and Discussion

Bhell ... Googley for the Hindus. Thus is a BIG win for the Muslims. Now what? At the very least future becomes much more complicated. Expect no further reclamation projects in the near future .. maybe not under Modi's watch at least. https://twitter.com/ARanganathan72/status/1193492979299696641 Ed...
by vsunder
18 Oct 2019 18:55
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

VSunder, Sir - I had not seen your post before I posted mine. Later I read through your post and realized the mistake! Coming to the equations themselves, to put it mildly, I'm mathematically challenged to fully comprehend and use these equations. Even though, I really want to. For sometime now, I'...
by vsunder
17 Oct 2019 07:18
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

Rohit thanks. I have a question for you. In Chapter VI of the 1965 Official War history, there is short description of Maj Gen Niranjan Prasad's plan for 15 Division operations which was different than the Corps plan. I know he asks for air cover etc but looking at the events turned out what do you...
by vsunder
16 Oct 2019 22:20
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

Most of what I have posted about the Amritsar radar Fish Oil ^^^^ is from a personal recounting by somebody and also information gathered from a book by Mandeep Singh about Anti aircraft artillery in the war of 1965. The P-30M Soviet radar had a range of 112 miles and could look upto to 40,000 feet....
by vsunder
16 Oct 2019 20:33
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

Hi Rohit, Most of the wiki links you have given is subsumed in my post and explanation in it that goes well beyond the wiki link. In fact I generated several phase plane plots of modern battles and ancient battles with varying initial force concentrations of enemy and friendly and ran MAPLE to gener...
by vsunder
15 Oct 2019 05:42
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

Ramana: I am extremely familiar will all this. In fact the very first time I posted on BRF in 1999 was exactly on this topic as applied to Kargil which was raging. I will elaborate on this when I find time. To model these situations it is easier if it is a siege like situation, then the ODE involved...
by vsunder
15 Oct 2019 00:05
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

Thanks Ramana. 1965 it seemed to me then that the Pakis would be in Delhi soon dictating terms. There used to be all sorts of rumors of agent provocateurs being dropped to poison the water supply and stuff like that during the course of the 1965 war. I remember one night seeing a light slowly moving...
by vsunder
14 Oct 2019 08:25
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

^^^ Above I mentioned a B-57 ELINT aircraft used by PAF to locate the Amritsar radar and vector in F-86's. The history as I learned is as follows: The precise technical designation of these aircraft is RB-57B. The US operated U-2 high altitude flights out of Peshawar to spy on the Soviet Union and w...
by vsunder
13 Oct 2019 21:07
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

The Pak codename for the Amritsar radar was "Fish Oil". It was a P-30(M) Soviet vintage radar with W/C Dandapani in charge of the 230 Signals unit. Pak AF attacked it many times including a napalm attack on Sept 9 whose sole damage was a burnt tent as AD unit opened up as the bombing run s...
by vsunder
13 Oct 2019 02:48
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

A good account of these battles is here https://archive.org/stream/TheSagaOfGritAndCourage/The-Saga-of-Grit-and-Courage_djvu.txt S. K. Korla was a DSO, Sparrow a MVC for the Jhangar operations of 1947-1948 (Ops Bison) and Bar for the 1965 ops, Thapan rose to be VCOAS. Dunn had a Military Cross. Indi...
by vsunder
13 Oct 2019 00:40
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

Ramana ji, I look at the 1965 battles slightly differently, though my conclusions are the same. In my opinion the key engagements (series of battles) were: 1. Pre Sept 65 - dealing with Pak infiltrators and capture of Haji pir : Victory for India. 2. Pak attack in Chhamb towards Akhnoor - Draw. Pak...
by vsunder
17 Sep 2019 21:15
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

For vsunder-ji: DFCCIL ‏Verified account @dfccil_india Drone footage of first trial run of Heavy Haul train on EDFC’s 194 km Bhadan- Khurja section on 14.09.2019. A python rake, in IR parlance. Two individual goods rakes have been attached to form a single long rake. One can see the 8-wheeler caboo...
by vsunder
17 Sep 2019 20:46
Forum: Strategic Issues & International Relations Forum
Topic: J&K Union Territory-2019
Replies: 3404
Views: 543849

Re: J&K Union Territory-2019

All that damage only by 2 armored cars. IA at its best myth making form. Thank god IA did not state they accomplished it by two guys using slingshots like David. I just saw David in Florence. The raider columns at Shalateng were trapped by IA and rocketed overhead by IAF using Tempests, strafed the...
by vsunder
17 Sep 2019 05:19
Forum: Strategic Issues & International Relations Forum
Topic: J&K Union Territory-2019
Replies: 3404
Views: 543849

Re: J&K Union Territory-2019

A few more comments. I dug up the video about Mehar Baba, not the saint but the IAF Air commodore. His improvised bombing of Poonch using 250lb bombs rolled off a Dakota is mentioned and towards the end of the video Air Marshal Grewal talks about it, how the fuzing was done and what they did. Mehar ...
by vsunder
17 Sep 2019 03:07
Forum: Strategic Issues & International Relations Forum
Topic: J&K Union Territory-2019
Replies: 3404
Views: 543849

Re: J&K Union Territory-2019

... Sharda Mukherjee was a stunning and elegant woman. She was a Maharashtrian woman. Later she became Governor of AP. Bharathi Mukherjee, IIRC, was the Governor of AP. Of course, Sharada is a synonym of Bharathi or Saraswati. You are totally mistaken: https://en.wikipedia.org/wiki/Sharda_Mukherjee...
by vsunder
17 Sep 2019 00:58
Forum: Strategic Issues & International Relations Forum
Topic: J&K Union Territory-2019
Replies: 3404
Views: 543849

Re: J&K Union Territory-2019

Deans absolutely agree with you. I knew many of the people who fought in the 1948 operations. One could not but growing up in Kanpur in the late 1950's. Where would India even find spares for the Spitfires and Tempests to sustain air operations for an extended war? You think Indian industry could ma...
by vsunder
16 Sep 2019 20:26
Forum: Strategic Issues & International Relations Forum
Topic: J&K Union Territory-2019
Replies: 3404
Views: 543849

Re: J&K Union Territory-2019

It is a fantastic story but I never read about it. Can you guys give some references. Most accounts I have read suggests the military leadership wanted to continue the war as they felt they had seized the momentum. It was Nehrus idea to call ceasefire and take it to the UN. For military operations ...
by vsunder
13 Sep 2019 21:36
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

People ask here often: What do DFC stations look like, do they sell Laya Patti, Channa and garam chai at DFC stations along with Paganini serenading you and Bouillabaise served with watercress in the upstairs dining room followed by Gateau St. Honore and cigars and brandy later. No No No. DFC statio...
by vsunder
11 Sep 2019 19:37
Forum: Technology & Economic Forum
Topic: India's Shipping Sector
Replies: 430
Views: 106269

Re: India's Shipping Sector

I was wondering when the second intermodal terminal at Sakrigalli, Sahibganj, Jharkhand on NW-1/Ganga would be inaugurated. MoS Shipping, Rajya Sabha MP, Mansukh Mandaviya had announced in July in Parliament, a completion date of Aug 30th. Tomorrow Sept 12, PM Modi will inaugurate this terminal. It ...
by vsunder
09 Sep 2019 19:19
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

^^^ If Akola is re-connected with Indore and the re-gauging is done, there will be a saving of 400km about 8 hrs in time between Hyderabad/Bangalore and Delhi over current routes. There is a description of travel by the non-existent Meenakshi express from Ajmer to Hyderabad on the "choti line&q...
by vsunder
09 Sep 2019 08:33
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

^^^ 1. Yes WR screwed up and the line alignment between Mhow and Omkareshwar went through the Choral reservoir. After the re-gauging is done between Mhow and Khandwa(the old Holkar State Railway route), the entire section will be transferred from WR to CR. However, there is talk of leaving the Patal...
by vsunder
08 Sep 2019 23:03
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Thank you VSunder Sir and Arshyam for the detailed reply. Its incredible the amount of effort you take to get detailed information and identify the core issues and I(and many others) really look forward to your posts. I wonder why a large number of machines cannot be bought or leased, to at least d...
by vsunder
05 Sep 2019 21:14
Forum: Military Issues & History Forum
Topic: 1965 India Pakistan War: History
Replies: 668
Views: 78745

Re: 1965 India Pakistan War: History

September 7th, coming soon: Day IAF swung into action with bombing raids. September 13: The famous raid on Peshawar by the Tuskers. How time has flown, I was all of 10 and located in a city with a major IAF base that also did maintenance with an IAF hospital where casualties both IA and IAF were eva...
by vsunder
30 Aug 2019 20:06
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Track capacity expansion is not translating to timely movement of trains just yet. There are regular reports @RailwaySeva of trains moving 3 hrs late. Operations needs real attention. And why do you believe capacity expansion has happened? The major sections were operating at 160% capacity, and cur...
by vsunder
25 Aug 2019 22:57
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

DFC corporation has moved to a new website. Current status updated to March 2019 is on the web site. In addition Land acquisition status has been updated to Dec 2018. http://www.dfccil.com/Home/DynemicPages?MenuId=79 http://www.dfccil.com/ DFC has started issuing a journal bi-annually. The journal c...
by vsunder
21 Aug 2019 21:54
Forum: Strategic Issues & International Relations Forum
Topic: 2019 Strategic and Political Analysis-1
Replies: 6692
Views: 656592

Re: 2019 Strategic and Political Analysis-1

^^^^ Karan M and Suraj, here is a round up and analysis of recent decisions of Modi 2.0 related to the economic front by Sucheta Dalal. https://www.youtube.com/watch?v=kSKT_JrBfio These things have been so pervasive that the system will need quite some time to be cleaned up. Corporate India is a mes...
by vsunder
20 Aug 2019 21:27
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Mamata Banerjee, Nitish Kumar and the Eastern Dedicated Freight Corridor The EDFC will never become a potent artery for movement of bulk goods till the DFC is constructed through the states of Bihar, Jharkhand and West Bengal. The route through these three states passes through forest land which in...
by vsunder
19 Aug 2019 22:10
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

On 15th August, the first e-loco ran on any section of the DFC between New Khurja to New Bhadan 194km of the EDFC on the Kanpur----Khurja section of the EDFC. https://www.youtube.com/watch?v=zEocmRZHPmg Signals were also activated on the 15th on this section. Diesel locos were run on this section wi...
by vsunder
19 Aug 2019 07:30
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

They should have popped the poles into the holes by now(sic). As of last weekend, it's done at Bellandur Road and Carmelaram, the stations before Heelalige. Work is surely going on. Thanks for the fresh update. Here is a short video that IR wonks on this forum may like for the statistics, cost of r...
by vsunder
19 Aug 2019 00:19
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

Since I called Nitish Kumar a moron. Here is a prime example. About 15 years ago a new line was sanctioned between Hajipur(across the Ganga from Patna) to Vaishali to Sugauli ( near the border with Nepal). As with UPA projects, line was sanctioned but funds were not . This is a very backward part of...
by vsunder
18 Aug 2019 06:20
Forum: Technology & Economic Forum
Topic: Indian Railways Thread (Dec 2015)
Replies: 3591
Views: 593177

Re: Indian Railways Thread (Dec 2015)

The big loop around Ahmedabad of the western DFC can be clearly seen now on Google Earth. One can now see the huge Trishul at Sanand, west Ahmedabad where the DFC splits into three tracks. One goes over the Ahmedabad---Viramgam line(to Kandla ports etc) and the other parts of the trishul connect wit...

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