Search found 2778 matches
- 09 Nov 1999 08:44
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
Yes, I will send the program to BR members requesting it. <B>BUT </B>currently I have developed it on VB 4.0 (very old), & run it on Windows-95 only. So let me test out it's inter-operability with Windows-98, before I send it & later get flooded with complain of run-time problem. Not to ment...
- 05 Nov 1999 13:14
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
<B>Interesting Agni-II range enhancement by staging the last stage. </B><P>If the last stage is split into 2500 Kg & 1500 Kg segments (assuming 0.85 mass ratio can be retained on both new segments; which is quite a challange), then on a 500Kg payload the range enhancement is from 2948 Km(injecti...
- 05 Nov 1999 00:35
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
<I>>>What is the range of Agni-II with RV(500kg)+payload(500kg) factoring in rotational and centrifugal effects? </I><P>Yes the rotational & centrifugal effects are accounted for. <P>The program is still in my home computer, so I can not run it now to get the acutal figures. However the number t...
- 04 Nov 1999 15:02
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
OK. <BR>I have only run some basic trajectories. The priliminary result is that the best range is on A-3 configuration, and that all PSV-3 based configns (i.e. P-1,P-2,P-3) are inferior, mainly due to the lower thrust rating at launch. <P>The better of the above give max speed of ~ 5km/sec and range...
- 02 Nov 1999 23:28
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
I would be glad to share the program. <P>I am also looking forward to someone to volenteer to audit the calculation scheam.<P>I need to add a confign GUI to the program so that user can specify parametrs for as many stages, without requiring to modify the code to initializ various parameters.<P>As f...
- 02 Nov 1999 14:50
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
OK, now I have factored in the effect of earth's rotation & centrifugal force, which tend to improve the range.<P>I am yet to factor in for air drag, and shallow glide. For the time being I am assuming that these two opposite factors cancel out each others effect.<P>Thus now the Agni-II confign ...
- 02 Nov 1999 12:19
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
OK. Bare with me for relatively modest incremental progress. Please note that I am not a aerospace engineer by profession, just that I have some credible intertial navigation experience.<P>So now I have the 2 stage rocket ballistic software (prototype) ready. <P>I am yet to factor in for air drag, c...
- 01 Nov 1999 08:55
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
I have just finished writing a prototype program to compute missile trajectory. I need to generalize it for muti-stage rocket.<P>As against the simpler analytic equations, this S/W currently accounts for effect of gravity on true launch lift, as well as the effect of steady boost phase as against si...
- 28 Oct 1999 10:26
- Forum: Mil-Tech Archive
- Topic: Agni -> Surya?
- Replies: 21
- Views: 9527
Re: Agni -> Surya?
Can someone now use the equation to get prlim range enhancement estimates for Agni-II by staging the Second rocket into two ?<P>Appriciate your initiative. I would have done it except that I am on the road (in Japan).<P>The next step would be be look at Ramana's list for viable combinations to fit I...
- 23 Oct 1999 11:54
- Forum: Strategic & Security Issues Archive
- Topic: Strategic Affairs - III
- Replies: 20
- Views: 11524
- 20 Oct 1999 02:46
- Forum: Strategic & Security Issues Archive
- Topic: Strategic Folder III-A
- Replies: 31
- Views: 14417
Re: Strategic Folder III-A
<I>>> Cryogenic engines have a large significance. Since, India has succesfully lauched the PSLV-C2 (which requires cryogenic engines) it means that we have the technology as well as the means to make ICBMs.</I><P>Not correct. PSLV does use a Liquid Fuel stage(Vikas), but that stage is not cryogenic...
- 11 Oct 1999 12:09
- Forum: Nuclear Issues Archive
- Topic: Yield of Pokhran II ?
- Replies: 37
- Views: 15292
Re: Yield of Pokhran II ?
Excerpt from <A HREF="http://www.bullatomsci.org/issues/nukenotes/so98nukenote.html" TARGET=_blank>http://www.bullatomsci.org/issues/nukenotes/so98nukenote.html</A> <P><I>Nuclear stockpiles. We assume that there are proven Indian plutonium designs for a two-stage thermonuclear weapon, a st...
- 07 Oct 1999 01:50
- Forum: Military History Archive
- Topic: Question on 1971 war and Mumbai blackout
- Replies: 18
- Views: 15211
Re: Question on 1971 war and Mumbai blackout
In 1971, my father was posted in AF-Poona(Lohgaon) flying the 3 finned Superconni of No:6 (Dragon)Squadron, for Navel-Recce & transport. <P>He was on standby duty even when he was at home, and used to fly mission all odd hours of the day (to date I do not know of the mission details. I suspect m...
- 09 Sep 1999 01:34
- Forum: Mil-Tech Archive
- Topic: MiG-21-93 firing trials
- Replies: 8
- Views: 6915
Re: MiG-21-93 firing trials
Just calibrating the discusssion:<P>>><I>The range cited were for drone-sized targets. Fighters will have considerably greater RCS.</I><P>Target Drons are used weapons test simulate both the filght profile and the radar RCS. Such drones carry RCS enhancing reflectors (90 degree between 3 reflector s...
- 18 Aug 1999 03:22
- Forum: Nuclear Issues Archive
- Topic: N-Doctrine: Discussions Only. Please no news posts
- Replies: 22
- Views: 11652
Re: N-Doctrine: Discussions Only. Please no news posts
For effective Second Strike capability, I do hope that India has a secret DRDO factory to churn out hundreds of Agni & Prithvi decoys/dummies to move around the country just like the real ones. Given the poor record of secret keeping, these decoys must look and feel like the real ones to oridina...
- 18 Aug 1999 03:15
- Forum: Nuclear Issues Archive
- Topic: N-Doctrine: Discussions Only. Please no news posts
- Replies: 22
- Views: 11652
Re: N-Doctrine: Discussions Only. Please no news posts
>><I>A question: Is it possible to engineer a multi-purpose device? Ie, a fission core and boosted fission _and_ second core fusion? Or does is one limited to fission->boost and fission->fusion and not fission->boost OR fission->fusion? </I><P>IMHO, given high cost of Fissile Material and India's re...
- 18 Aug 1999 00:40
- Forum: Nuclear Issues Archive
- Topic: N-Doctrine: Discussions Only. Please no news posts
- Replies: 22
- Views: 11652
N-Doctrine: Discussions Only. Please no news posts
<B>Indian Nuclear Doctrine: Discussions Only.</B><P><I>Please do not post any news items on this thread</I><BR> <BR>I had been awaiting Ramana to start the new thread. But I could'nt wait to raise few questions on the new Nuclear Doctrine.<P>So let me start with the previous post from Ramana. <P>---...
- 17 Aug 1999 23:29
- Forum: The Kargil Archive
- Topic: Kargil Impressions - Trip Report
- Replies: 9
- Views: 18549
Re: Kargil Impressions - Trip Report
As I said before in another thread. You are just in time ! <B>Welcome back.</B> <BR>Looking forward to some good discussion on the new Nuclear Policy.<P>Cheers -Arun Sharma