Search found 1094 matches

by prasannasimha
24 Sep 2016 23:16
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

^ can all of you take your discussion elsewhere instead of trying to score brownie points here. Mods can we put an end to this oneupmanship.
Can the mods put a stop to this.
by prasannasimha
24 Sep 2016 17:35
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

During the lugging of 40 tons it is supposed to be coasting not accelerating. If anyone has a record of the flight profile it may be clearer.
by prasannasimha
24 Sep 2016 07:37
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

Mission Readiness Review (MRR) committee and Launch Authorisation Board (LAB) have cleared the 48 and half hr countdown of PSLV-35/SCATSAT-1 Mission Mission Readiness Review (MRR) committee and Launch Authorisation Board (LAB) have cleared the 48 and half hr countdown of PSLV-35/SCATSAT-1 Mission fo...
by prasannasimha
24 Sep 2016 07:34
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

Also discussions are going on without considering aerodynamic and design issues which all add up to strikingly different outcomes. It is better this is taken to a different thread.
More importantly it has been 2 years now since MOI of Mars orbiter mission. Not a peep about that though here.
by prasannasimha
22 Sep 2016 08:14
Forum: Trash Can Archive
Topic: Terror Attack At Army Camp In Jammu And Kashmir's Uri
Replies: 666
Views: 91691

Re: Terror Attack At Army Camp In Jammu And Kashmir's Uri

The problem is that their own fighters cannot fly at will. Also if India issues a No fly zone over their territory it would be a bigger slap on their face !!
by prasannasimha
22 Sep 2016 08:02
Forum: Trash Can Archive
Topic: Terror Attack At Army Camp In Jammu And Kashmir's Uri
Replies: 666
Views: 91691

Re: Terror Attack At Army Camp In Jammu And Kashmir's Uri

^ If you remember the Myanmar hot pursut it was also not announced directly but from "other sources"
by prasannasimha
22 Sep 2016 07:19
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

Energy density also ahs to be considered which is why sold rocket boosters in the atmospheric phase is still used where it is beneficial. Also cryogenic engines have their own issues and frankly when both GSLV and MK3 where designed we did NOT have a cryogenic engine. Everyone cooly forgets that we ...
by prasannasimha
22 Sep 2016 00:24
Forum: Trash Can Archive
Topic: Terror Attack At Army Camp In Jammu And Kashmir's Uri
Replies: 666
Views: 91691

Re: Terror Attack At Army Camp In Jammu And Kashmir's Uri

^ Anyway it is called the Line of CONTROL and not an international boundary
by prasannasimha
22 Sep 2016 00:21
Forum: Trash Can Archive
Topic: Terror Attack At Army Camp In Jammu And Kashmir's Uri
Replies: 666
Views: 91691

Re: Terror Attack At Army Camp In Jammu And Kashmir's Uri

Strong suspicion that the whole thing was over by the time this thing was leaked. Modi was in the War room till 22.30 last night so in effect the commandos had retreated after completing their mission by then. I think they are using plausible deniability now. If Pakis can do it so can we. Just have ...
by prasannasimha
19 Sep 2016 19:27
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

prasannasimha

Vikas is 2.9 Meyers and nearly 1 meter wide. L110 is 4 meters wide. To accommodate 4 engines you need more than 4 meters as space for plume divergence is required.Also L110 needs space for nozzle movement for thrust vectoring.
by prasannasimha
17 Sep 2016 22:13
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

^^ CAG investigation for wasting resources :rotfl:
by prasannasimha
17 Sep 2016 19:30
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

The empty stage acted as a truss/support for the other engines so not actually a "dead weight". The design was based on constraints at that time.
by prasannasimha
17 Sep 2016 15:45
Forum: Technology & Economic Forum
Topic: South India River Water Issues/Disputes
Replies: 1213
Views: 106867

Re: South India River Water Issues/Disputes

The canals tapping Kaveri are before KRS not after. The water inflow is measured at Biligundlu
by prasannasimha
17 Sep 2016 15:27
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

We hadn't got the SCE working and who knows ?
by prasannasimha
17 Sep 2016 15:27
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

^ It is not a payload fairing or heat shield it is an interstage truss which is open lattice to allow hot firing.
by prasannasimha
16 Sep 2016 08:16
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

Clustering is not only to reduce failure but also to simplify engine design and output, fuel fraction delivery rate etc. Clustering of multiple but separately fired engines has been done by ISRO for eg the strap on boosters etc but that is not "clustering" that is being referred to. It is ...
by prasannasimha
16 Sep 2016 08:11
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

^ I hope you realize that this is the fiorst light image of the camera and this camera is not a color camera but uses other paramters(for example IR spectrum watever vapor channel) Or do you want a photo-shopped color image ?
by prasannasimha
15 Sep 2016 00:06
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

Clustering of solid boosters and liquid engines are two different things. Solid Boosters rate of burn is controlled by their grain configuration and once started cannot be stopped or throttled at will whereas liquid engines can have variable flow and thrust generated and usually the source of fuel a...
by prasannasimha
14 Sep 2016 23:48
Forum: Technology & Economic Forum
Topic: South India River Water Issues/Disputes
Replies: 1213
Views: 106867

Re: South India River Water Issues/Disputes

350 peopel were arrested 2 people died in firing I am pretty amused at statements like there are hardly 15 % Kanndaigas and we are all thrashing Tamilians etc etc here.The average joe wasn't even bothered. I ahve currently 6 Tamilians, 2 Andhra and 2 Kannadiga workers working on the renovation of my...
by prasannasimha
13 Sep 2016 13:36
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

So easy to say cluster 4 when we had not yet learnt to cluster two. (Yes we can even cluster 6-8 10 and so on) Once we have learnt clustering with the 2 Vikas engines we are moving to cluster other engines. Derogatory terms for the efforts have to also keep in mind that not many countries can even l...
by prasannasimha
12 Sep 2016 09:12
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

prasannasimha

The rocket was performing a yaw maneuver at that time and that was being called out.
by prasannasimha
10 Sep 2016 23:33
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

Capturing a small film roll and capturing an engine may be pretty different in requirements . In fact this was much older they used to pick up and drop mail using a hook system much before this on various islands off the coast of Britain
by prasannasimha
10 Sep 2016 18:03
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion - Sept 2016

^ the cryo stage always had a black cover. They keep a thermofoam cover over various parts of all the stages which are the white shards that fall off when the vehicle launches
by prasannasimha
09 Sep 2016 17:18
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

Changing orbital planes requires a huge delta V budget Turning a rocket through 90 degrees will incur a huge amount of fuel budget it may not be economically and practically feasible in the commercial sense. They rotate the rocket in certain small angles during multiple satellite launches but these ...
by prasannasimha
09 Sep 2016 12:07
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

^ The PSLV can launch to GTO also (albeit lower mass) for eg PSLV C4 was the first launch to GTO Just as a frame of reference note that the IRNSS have been launched to GEO or GSO via the PSLV. The GSLV can launch higher mass to GTO
by prasannasimha
09 Sep 2016 11:31
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

juvva wrote:^Around 44:15 in the launch video, I noticed, what looks like loss of data, the altitude and velocity plots stopped updating for a few seconds.

That is jsut a recording glitch we could see it continuously when watching it live
by prasannasimha
08 Sep 2016 19:13
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

Though a novice wrt to this dhaaga, Internalising that naarmal is new word for successful boring launch. :mrgreen: Kudos to ISRO for yet another fine job. ----------------------- heard that majority of the isro recruits are from naarml sdres from naarmaal colleges and universities and not from hifi...
by prasannasimha
08 Sep 2016 17:25
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

11 % upstaging done both for testing and meeting requirements of injection parameters
by prasannasimha
08 Sep 2016 17:24
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

sooraj wrote:perigee in 300m accuracy, inclination difference is zero and augmented perigee in 0.01deg

Apogee difference 80 meters
by prasannasimha
08 Sep 2016 17:16
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

Gyan wrote:Satellite performance will be checked subsequently. But launcher has done its job fully and successfully. ISRO So boring. Hope this series of boring success continues.


The targeted parameters are all within normal . MCF Hasan has taken over the satellite
by prasannasimha
08 Sep 2016 16:51
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

Ist stage performance normal
by prasannasimha
08 Sep 2016 08:12
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

GSLVF05/INSAT3DR
Second Stage(GS2) N2O4 filling completed by 13:30hr IST. Preparations for Second Stage(GS2) UH25 filling are under progress
by prasannasimha
08 Sep 2016 08:12
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

Commercial utility was there when they were increasing weights of commercial satellites.With beter propulsion systems for station management it is expected that the weight of satellites will come down so it is not so pressing. What we will need the 10 ton Launcher are for things like space stations ...
by prasannasimha
07 Sep 2016 07:58
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

http://www.isro.gov.in/update/05-sep-2016/mission-readiness-review-mrr-committee-and-launch-authorization-board-lab-have Sep 05, 2016 Mission Readiness Review (MRR) committee and Launch Authorization Board (LAB) have cleared the 29 hr countdown starting at 11.10 hr IST on Wednsday, September 7, 201...
by prasannasimha
07 Sep 2016 07:53
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

Every stage of development was done with existing facilities and shoe string budget. Easy to decry them but just imagine the amount of effort they had to put and even direct sabotage that was done to their plans. Actually each modification has been well thought and with a reason given the circumstan...
by prasannasimha
06 Sep 2016 09:35
Forum: Military Issues & History Forum
Topic: Indian Space Program: News & Discussion - Sept 2016
Replies: 4447
Views: 1107285

Re: Indian Space Programme Discussion

L110 cannot just be "converted " into a semicryogenic stage. If it was that simple all countries would have such rockets. East to say but since some people have all solutions they should join ISRO and solve all their problems isn't it :)

Go to advanced search