Showing posts with label Tank. Show all posts
Showing posts with label Tank. Show all posts

Thursday, July 24, 2008

Tank Comparisons

Here is a comparison chart of Modern Main Battles Tanks that I've been working on. You're free to use, modify and share it according to the license listed in the document.

The license is as below:

As the creator of this work, I own the copyright to this document. I allow redistribution, copy and use this work with or without modifications is allowed under the following conditions:

1. Redistributions must retain the above copyright notice, with my name (Sniperz11), and this list of conditions;

2. Redistributions in modified form must explicitly state the fact that the document has been modified.

Any other rights are released by the author.

Some points to note:
1. I have tried to make it as comprehensive as possible, but not being a subject expert, the parameters for comparison elude me.

2. I have also strictly adhered to taking data only from authentic sources, preferably only the user or manufacturer websites. The source of this data has been indicated in the comments on each cell, and in the sources worklist. If you are also modifying this, I request you to do the same.

3. The information for some parameters, for eg, Armor ratings are highly classified; while there is no information for other tanks, like the Chinese Type-99.

4. Please ensure that you give data relating to the most common version of the latest variant of the tank. For eg, for Merkava, provide data for the Merkava Mk.4, or M1A2 SEP for the Abrams, and Leopard 2A6 variant.

5. As you will see, there are huge blanks in the document. I look forward to your assistance in this regards. If you are creating a new version, or modifying any information, please ensure that this is mentioned in a disclaimer/license text at the back of the excel sheet.

6. I request you to also create a seperate worksheet in the file, and list the alterations to the original file. This will make it easier to create a common version from many.

You can upload your version (please make sure that the filename contains the date updated and your name) on any site in the net (box.net is a good one; rapidshare is the among the most popular), and give a link to the URL on a comment to this post.

Thanks

Download links:

Please let me know if there are any problems with the download or viewing. Thanks.

1. Box.net - Tank Comparisons_July 24 2008_Sniperz11.xls

2. Rapidshare - rapidshare.com/files/132615218/Tank_Comparisons_July_24_2008_Sniperz11.xls.html

Monday, February 4, 2008

Arjun Video from DD

Found this video on google. Its a 13 minute Doordarshan piece about the Arjun tank, and has some truly delectable footage for people with an Arjun fetish.

Now, neither DD nor any of the other news channels really know what they're talking about when covering Defence technology. Even if they do, the coverage must cater to the layman, most of whom care about the Arjun as much as they do about little green men on Mars.

Still, these stories do provide a wealth of information, not so much in what they say, but what they show... and this 13 minute exclusive piece is full of never-before-seen footage and details of the Arjun tank, stuff that only the National Carrier will be allowed to show. Enjoy the show.

Link: http://video.google.com/videoplay?docid=-3997119991218613108



Some highlights (at least for me):

1. Footage from Ashwamedh/Rajasthan Trials.
2. Coordinated fire from 5 tanks. Also see the firing from 5 tanks.
3. Arjun navigating sand dunes at speed, neutral turn and turret traverse at speed.
4. Gunner: "Arjun is able to hit targets even at 25 kph in day or night".
5. Old footage of the scientists at work - all of them look so young and enthusiastic at the time (M. Natrajan, H.M. Singh, Kalam, etc).
6. Extensive shots of the manufacturing area.. especially loved the boulevard-like shot through the barrels - 50 pretty Arjuns all in a row.
7. Video of night firing
8. Inside shots of Crew area.
9. picture of the planetary gearbox

Saturday, October 6, 2007

Shiv Aroor's Arjun Ride

Here is the half hour Headlines Today special about the Arjun MBT, filed by Shiv Aroor (Blog) from the Heavy Vehicles Factory and CVRDE testing range in Avadi, Chennai. The lucky fellow got to spend two full days with the Tank, and was even given a chance to take it for a spin and get a few bumps and scratches on the paint.

There isn't much new information about the Tank thats said in the report, which is understandable given that the focus is on the layman who doesn't know a T-72 from a Mig. The camera-work is patchy, and wastes a lot of time showing repeats of the road-rage antics of Shiv the Driver. Still, considering that its a 20 minute long report, there are still some great bits of info, most notably a look into the impressive state-of-the-art manufacturing facility for the Arjuns. In addition, there are lots of small bits of info that can be gleaned by careful observers and enthusiastic analysts.

Shiv has a post on his impressions at his blog:
http://livefist.blogspot.com/2007/10/what-now-arjun.html


Take a look:

Part 1:


Part 2:



This latest piece echos Ajai Shukla's report about the Arjun in May, where he too did not have any criticisms of the Tank.

At that time, there was a palpable sense of both hope and anxiety. Hope because the DRDO was confident that it had a world-class product that would come out on top in the comparative trials; anxiety because the Army is notoriously obstinate about having exactly what it wants (even with best-of-Brochuritis). In addition, Arjun's long development and a strong Russian Arms Lobby make it all the more disliked by the Brass.

With the cancellation of the Comparative Trials, a travesty of monumental proportions, the DRDO's fears came true, but they quickly salvaged it by planning the Accelerated User Trials. Lets hope this isn't another hogwash. One thing is clear though- the Arjun has arrived.

Its a great achievement on part of the DRDO PR apparatus that they have converted two people, who till recently were hacking at the Arjun and DRDO. Lets hope they can convince the Generals as well.

Tuesday, May 29, 2007

Arjun MBT Video from NDTV



Ajai Shukla of NDTV recently did a story about the Arjun MBT from Avadi, Chennai (at the Heavy Vehicles Factory of the OFB) about the planned comparative trials between the Arjun and the T-90S of the Indian Army. Being a former Armored Corps Officer of the Indian Army, I can think of few better qualified persons to report about the tank.

However, past reports and opinion pieces from Shuklaji have not been as generous to the Arjun or DRDO. These views, backed by his qualifications should be taken seriously. Stronger views have been expressed on his blog ([1], [2]). Obviously, supporters of the Arjun and defence enthusiasts were quick to contradict his views, with strong and passionate responses, not all necessarily based on fact and scientific analysis.

There has, of course been a general suspicion towards Defence reporters, considering the large number of highly inaccurate (and often downright scurrilous) reports that have emanated from various quarters, aided by 'anonymous sources', 'army officials' and 'retired officers'. It doesn't help when we have a mushrooming of anti-DRDO reports that emerge just before significant milestones are being reached in the programs- Trishul, Akash, Agni-III, Tejas, and now, the Arjun. Many times, these are ladled with gratuitous amounts of sensationalism & hyperbole. Worse, the information is often quite old, and downright false. Thus, it was quite a shock to see Shuklaji's piece.

When I first saw the report, my first impression was that it was Vishnu Som (an excellent and objective Defence Correspondent) reporting it. Imagine mine (and quite a few other's) surprise when we saw that it was from Ajai Shukla himself, and, even more surprisingly, it was actually complimentary to the Arjun. Shuklaji did this exclusive piece with obvious glee, and certainly seemed to treat the Arjun like his own pet dog.

One wonders what has changed in the Arjun that made him change his opinion about it. After all, he has been a vocal opponent of the Arjun project, and has often called for its closure, or a thorough revamp. Perhaps his seniors at NDTV had clear instructions on what to report, but given his expertise in the field, this seems unlikely. Probably DRDO allowed access to the Arjun on the condition that he did not denigrate it, a slightly more likely prospect. Still, AS is too shrewd to not allow his opinions to slip into the report.

The most likely reason, and indeed, the one I hope is true, is that the Arjun has come full circle, and has shed all its previous problems, and has now truly become a world-class tank worthy of joining the Abrams, Leclerc, Merkava and others, and standing tall among them. Lets hope that next month's trials prove it right. A report by AS about his personal feelings about the Tank would be eagerly awaited.

The tank itself is quick and nimble far beyond its weight and size. The stabilized gun looks impressive, as does its state-of-the-art Hydropneumatic suspension. It sure looks to kill, and in a month, we'll know whether it is as good as it looks.

Wednesday, May 16, 2007

Return of the Exiled Warrior part 2

Here is the report about the Arjun MBT from India-defence.com, regarding the facts from the 15th Standing committee on defence.

The complete report may be found from the Official Lok Sabha site at http://164.100.24.208/ls/committeeR/PAC/5th.htm.

The excerpts of the report from
http://www.india-defence.com/reports-3199:

The following are excerpts of the response of DRDO and the Ministry of Defence to the 14th and 15th Standing Committee on Defence regarding the development, progress and present status of the Arjun Main Battle Tank (Arjun MBT):

-- Technical issues in the Gunner’s Main Sight and Gun Control System have been resolved. Suitable modifications have been carried out in these sub-systems on the initial five tanks of MBT Arjun by DRDO, the agency involved for conception and development of the project;

-- DRDO has conducted successful evaluation and handed over five tanks to the Army on 20th Jun 2006;

-- Between February and March 2007, DRDO and the Indian Army conducted Joint Receipt Inspections (JRI) of up to 29-40 Arjun MBT's;

-- Price comparison between 60 ton Arjun MBT and 50 ton T-90S not viable due to inherent difference;

-- Firing accuracy of Arjun MBT far superior to T-90s or T-72s, can engage targets at 2500 meters;

-- Production model of Arjun MBT costs Rs 16.80 to 17.20 crore per system;

-- Power pack, Gunner’s Main Sight and Track are imported components, which work out to 58% of the cost per tank; I

-- Import content can be progressively reduced with increased production orders;

-- Indigenous Gunner’s Main Sight (IGMS) enables the crew of the tank to engage targets under static and dynamic conditions by day and night with enhanced hit probability;

-- Indigenous production of power pack through license production is feasible with enhanced production order for Arjun MBT considering the economy of scale;

-- Arjun MBTs been driven for over 60,000 kms and fired more than 8,000 rounds, no defects detected;

-- DRDO's involvement to cease after OFB produces 30 Tanks, DGQA to take over;

-- Heavy Vehicle Factory (HVF) to produce 50 tanks a year from 2009 onwards;

Return of the Exiled Warrior

The DRDO has chosen its names well. They are always beautiful and evocative, deep in mythological significance (of which, we have no dearth) and give a good indication of the thing in question. There are the missiles, Agni, Prithvi, Akash, Trishul and Nag. Then, there is the Tejas, Marut, the Simhika Sonar system (Simhika was a demon who lived in the sea between Lanka and India, and swallowed Hanuman, an apt name) & co.

Into this group now comes the Arjun, with his bow (tank gun), Gandiva, and backed by Bhishma (T-90). Ironically, the Arjun has, like its mythical counterpart, had to battle not just Bhishma for recognition, but a whole armyfull (pun intended) of doubters and enemies. It has had to go into exile for a long time (almost as long as the Pandavas). But now, its time to return from the wilderness. and the Arjun surely has got people talking. And scared.

After ironing out the problems in the Arjun, the DRDO has confidently put it through its paces... made it fire over 8000 rounds, and travel over 60,000 km, without incident. It was confident enough to give 5 Arjuns for testing to the Army, and another dozen for the recently concluded Ashwamedh Exercises in Rajasthan, where it faced off against over a hundred T-90s and T-72s. And reports seem to indicate that it performed well.

Now, latest reports indicate that the Arjun will make a splash later this year at Army testing, and will be inducted in numbers by 2009. This was revealed to the 15th Standing Committee on Defence by MoD and DRDO officials. A full excerpt of the conversation will be put up late. The good news about the Arjun has been coming in the past few months with increasing frequency and intensity. There were the reports of a revolutionary new Armor that had been developed by DRDO scientists, which even US is interested in. Then, there were the reports of the effectiveness of the Arjun Armor, the cleaning up of all the problems that the Arjun had before, and the Ashwamedh reports.

It is disappointing, though not unexpected that the Media has not taken this up with its usual gusto. But of course, for a media that has made money by bashing the DRDO, why should this good news be reported. Of course, there haven't been many official statements and reports about this. And since when has the media needed official statements to tear the DRDO to pieces? How many reports have we seen that have quoted 'unnamed officials' or 'retired officers'. The same media that reported the IJT crash at Aero India with such 'Schadenfreude' was unnaturally quiet when the first production LCA made its maiden flight. We can expect the same for the Arjun. The DRDO, on its part, is ignoring these reports and continuing its work with a vengeance, letting its actions speak for itself.

The good news hasn't gone unnoticed. The defence enthusiasts on the myriad fora that pay attention to the DRDO's good work are ecstatic about the spate of successes- the PAD, Brahmos, Agni-III, LCA, and now, the Arjun. Some newspapers and web journals too are reporting the good news. As reports are pouring in about problems in the T-90 (most of them, the same problems that the Arjun faced), its becoming clear that the Arjun is not the fiasco that it was called for the past 15 years, but is shaping up to be a tank that will match the best in the business, and go further.

It was said that when Arjuna and Krishna blew their conches, Devadatta & Panchajanya, all who heard it trembled and enemies feared for their lives, while their allies found courage and hope. As the Arjun is thundering towards induction, the conch roars are growing louder, and those who thought less of it are thinking again, and those who will face it are scurrying for answers.