Indian Space Program Discussion

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symontk
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Re: Indian Space Program Discussion

Post by symontk »

I dont know whats it with flowers, one another project in ISRO was called DAISY
Victor
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Re: Indian Space Program Discussion

Post by Victor »

Austin wrote:.. chairman of the Indian Space Research Organization (ISRO) Sarvepalli Radhakrishnan.
Strange typo in the Ukrainian site.
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Re: Indian Space Program Discussion

Post by harbans »

Successful ignition of an indigenous cryogenic engine on Wednesday at Mahendragiri in Tamil Nadu’s Kanyakumari district, in conditions simulating the high altitude atmosphere, has boosted the confidence of the Indian Space Research Organisation (ISRO) to go ahead with the launch of a Geo-synchronous Satellite Launch Vehicle (GSLV-D5) in July.

The hot-test took place in the newly-built high altitude test facility (HAT) at ISRO’s Liquid Propulsion Systems Centre (LPSC) at Mahendragiri.

“The test was held at 7.55 p.m. on Wednesday, simulating the high altitude conditions to see whether ignition of the indigenously developed cryogenic engine takes place smoothly, as per the expected temperature, pressure and flow parameters,” said Director of LPSC M.C. Dathan.

“The ignition was perfect and it gave all the parameters as per our predictions and it has given us an excellent confidence to go ahead with the GSLV-D5 launch from Sriharikota in July,”
he noted. The engine, which uses liquid oxygen and liquid hydrogen as propellants and develops a thrust of 7.5 tonnes, powers the GSLV’s upper stage.

With the successful test, the indigenous cryogenic engine would be fully assembled and the cryogenic stage itself delivered at Sriharikota in a month’s time. “Once it reaches Sriharikota, it may take more than two months to fully assemble the vehicle and conduct all tests. So we are planning to launch the GSLV-D5 in the second half of July,” said Mr. Dathan.
Hindu: Successful High Alt testing of Cryo Engines
Austin
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Re: Indian Space Program Discussion

Post by Austin »

India's Mars mission on track; scientists testing payloads: official
NEW DELHI: India's Mars mission is on track and space scientists are testing the payloads before they are integrated with the satellite.

"We are on track for a October launch this year. The payloads are undergoing tests," a senior official of the Department of Space said.

The Mars Orbiter Mission, expected to be launched in mid-October this year, will carry five experimental payloads with a total weight of 14.49 kg.

The Methane Sensor for Mars, which will be capable of scanning the entire Martian disc within six minutes, will weigh 3.59 kg.

Earlier missions to Mars had detected Methane in the thin Martian atmosphere, but the discovery is yet to be corroborated. Methane is known to be released by some microbes as part of their digestive process.

The Mars mission will propel India to the elite club of five nations comprising the US, Russia, Europe, China and Japan which have launched similar missions.

Another instrument --Thermal Infrared Spectrometer -- weighing 4 kg will be used to map the surface composition of Mars. The Mars Colour Camera has a mass of 1.4 kg, while the Lyman-alpha photometer, weighing 1.5 kg, will measure atomic hydrogen in the Martian atmosphere. The Mars Exospheric Neutral Composition Analyser (MENCA) which will study the Martian atmosphere weighs about 4 kg.

The Mars orbiter will go around the planet once in three days. Prime Minister Manmohan Singh had announced the Mars Orbiter Mission in his Independence Day address last year.

ISRO's trusted warhorse rocket PSLV-XL is expected to launch the mission some time in October from the spaceport Sriharikota.

The satellite is expected to exit Earth's orbit on November 26 and embark on the journey to Mars, which is expected to last for around 300 days. Scientists have drawn up plans to insert the satellite into an orbit around Mars on September 22 next year.
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Re: Indian Space Program Discussion

Post by kvraghavaiah »

harbans wrote:
Successful ignition of an indigenous cryogenic engine on Wednesday at Mahendragiri in Tamil Nadu’s Kanyakumari district, in conditions simulating the high altitude atmosphere, has boosted the confidence of the Indian Space Research Organisation (ISRO) to go ahead with the launch of a Geo-synchronous Satellite Launch Vehicle (GSLV-D5) in July.

The hot-test took place in the newly-built high altitude test facility (HAT) at ISRO’s Liquid Propulsion Systems Centre (LPSC) at Mahendragiri.

“The test was held at 7.55 p.m. on Wednesday, simulating the high altitude conditions to see whether ignition of the indigenously developed cryogenic engine takes place smoothly, as per the expected temperature, pressure and flow parameters,” said Director of LPSC M.C. Dathan.

“The ignition was perfect and it gave all the parameters as per our predictions and it has given us an excellent confidence to go ahead with the GSLV-D5 launch from Sriharikota in July,”
he noted. The engine, which uses liquid oxygen and liquid hydrogen as propellants and develops a thrust of 7.5 tonnes, powers the GSLV’s upper stage.

With the successful test, the indigenous cryogenic engine would be fully assembled and the cryogenic stage itself delivered at Sriharikota in a month’s time. “Once it reaches Sriharikota, it may take more than two months to fully assemble the vehicle and conduct all tests. So we are planning to launch the GSLV-D5 in the second half of July,” said Mr. Dathan.
Hindu: Successful High Alt testing of Cryo Engines
Good news. If India can fly GSLV-D5 successfully, it becomes one of the biggest and important milestones of ISRO. Wish You all the best ISRO.

But regarding the date of GSLV flight, I had condemned earlier on the occassion of latest PSLV launch where many ISRO officials boasted that they will fly GSLV in May, which is obviously a joke and even a kid can understnd that it is impossible. ISRO has to show exmplary leadership and work. Irresponsible statements make a different impression for ISRO.
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Re: Indian Space Program Discussion

Post by svinayak »

kvraghavaiah wrote: Good news. If India can fly GSLV-D5 successfully, it becomes one of the biggest and important milestones of ISRO. Wish You all the best ISRO.

But regarding the date of GSLV flight, I had condemned earlier on the occassion of latest PSLV launch where many ISRO officials boasted that they will fly GSLV in May, which is obviously a joke and even a kid can understnd that it is impossible. ISRO has to show exmplary leadership and work. Irresponsible statements make a different impression for ISRO.
I would be more worried about other countries sabotaging Indian programs. There is active effort to reduce Indian capability
Dont worry about ISRO and stop critizizing India
member_24903
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Re: Indian Space Program Discussion

Post by member_24903 »

kvraghavaiah wrote: But regarding the date of GSLV flight, I had condemned earlier on the occassion of latest PSLV launch where many ISRO officials boasted that they will fly GSLV in May, which is obviously a joke and even a kid can understnd that it is impossible. ISRO has to show exmplary leadership and work. Irresponsible statements make a different impression for ISRO.

Mastering Cryogenic Tech is different ball game altogether and mastered by only a handful nation, but not any tech denial regime as India faced, so I think better support ISRO.
sanjaykumar
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Re: Indian Space Program Discussion

Post by sanjaykumar »

May I suggest comparing C isotope ratios in atmospheric methane with regolith C isotope ratios. Presumably Curiosity already has produced these data.

Perhaps these can be done for atmospheric compounds that will be accessible to the Indian orbitor.
Such as CO2, nitiles, thiocyates, etc. that is carbon compounds that are less likely to be products of conventional microbial metabolism. CO2 included here due to the paucity of oxygen in the atmosphere. Of course there may be many other pathways to CO2.
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Re: Indian Space Program Discussion

Post by sanjaykumar »

That should read nitriles.
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Re: Indian Space Program Discussion

Post by Shankar »

a real good news after a long long time -18 years to be exact
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Re: Indian Space Program Discussion

Post by pankajs »

Isro to have research centre near Rohtang Pass
SHIMLA: To study the impact of global warming on melting of glaciers and environment in general, the Indian Space Research Organisation (Isro) has decided to set up an observatory at Kothi near the 13,050-feet-high Rohtang Pass.

Scientists would be studying the behavior of aerosols, glaciers and back carbon aerosols at the poplar mountain tourist spot. With thousands of vehicles passing through Rohtang, especially during peak tourist season, on a daily basis, the white snow cover turns black due to carbon emission from vehicles. Increased quantity of black carbon aerosols in the atmosphere is absorbing more heat, due to which incoming solar radiation is being absorbed more and not reflected accordingly, resulting into faster melting of glaciers.
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Re: Indian Space Program Discussion

Post by Varoon Shekhar »

A real dumb layman's question: When it is reported that the cryogenic engine ignited, are they saying that it was some kind of controlled ignition, lasting for a short duration? Or did the engine 'burn' for the full 10 or 12 or whatever minutes? If the engine was fired in a simulation of an actual flight, why not state that, instead of merely using the term 'ignition'? They could write that the engine ignited in a high altitude facility, and went on to operate for its full flight mode.
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Re: Indian Space Program Discussion

Post by SSSalvi »

^^^

3rd para mentions that engine is yet to be assembled ... also give a timeframe of actual Launch.

The report has a sentence
" The launch of a GSLV-D3 with an indigenous cryogenic engine in April 2010 ended in failure. Although the engine ignited in vacuum in space, the ignition could not be sustained. "

So it seems that they wanted to ensure the Ignition Sustainibility at rarified atmospheric conditions.
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Re: Indian Space Program Discussion

Post by Varoon Shekhar »

Thanks, but why doesn't the media make that clear for the lay reader? Or at least an ISRO official should state to the media, this was not a test of the whole engine, but just to see whether the engine would ignite for a few seconds in a high altitude facility. Not very difficult! So then, the engine has been tested on the ground several times for its full duration, and they must be content with that. The ignition at high altitude was a confirmation.
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Re: Indian Space Program Discussion

Post by nash »

https://www.facebook.com/isro.org

ISRO's facebook page have added some new pics of GSLV-MkIII and s-200 booster, seem like they are in very advance stage, hopefully we may hear some good news.
Austin
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Re: Indian Space Program Discussion

Post by Austin »

^^ Looks good , the design has many similarities with Ariane 5. The brochure says it can lift up 4T in GTO orbit. So the current GSLV Mk2 can lift 2.5T in GTO orbit
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Re: Indian Space Program Discussion

Post by SriKumar »

SSSalvi wrote:^^^

3rd para mentions that engine is yet to be assembled ... also give a timeframe of actual Launch.

The report has a sentence
" The launch of a GSLV-D3 with an indigenous cryogenic engine in April 2010 ended in failure. Although the engine ignited in vacuum in space, the ignition could not be sustained. " So it seems that they wanted to ensure the Ignition Sustainibility at rarified atmospheric conditions.
The article is cryptic in its comment. The GSLV D3 failure was due to the cryogenic stage. It seems that the stage ignited but ignition was not sustained (so I suppose the D3 was the first high altitude test of the ignition!). The failure was traced to, IIRC, the cryo pump failing quickly (Liq. hydrogen pump, I think). So, really it was a cryo pump issue. Just added the link below....see items 5 & 6. It clearly says that that the cryogenic stage ignited normally in the D3 failure, and sustained it for 2 seconds. Then the cryo pump went kaput and stopped supplying liq. H to the fire. http://www.isro.org/pressrelease/script ... Jul09_2010 The Hindu article gives very little info and no kament about cryo pump performance in the Mahendragiri test.
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Re: Indian Space Program Discussion

Post by vic »

With GSAT-11 already hitting the weight of 4.5 tons, will the GTO ability of GSLV Mark III prove inadequate?
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Re: Indian Space Program Discussion

Post by Anurag »

vic wrote:With GSAT-11 already hitting the weight of 4.5 tons, will the GTO ability of GSLV Mark III prove inadequate?
The range in the mk-IV configuration with two additional S-200 boosters should make it work.
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Re: Indian Space Program Discussion

Post by Vipul »

Human Spaceflight Mission: ISRO makes stides in pre-project plans.

India’s ambitious human space programme might not have been the Centre’s priority while formalising the 12th Five Year Plan (2012-2017) but the country’s space agency –– Indian Space Research Organisation (ISRO) –– is not short on confidence.

Sources in the agency told Deccan Herald that as part of the pre-project activities, drop test of full-scale Crew Module were conducted successfully “to understand the deceleration characteristics and validate the estimated values of ‘G’ level, touchdown velocity and depth of penetration.”

Another source pointed out that the flight suit had been successfully tested in vacuum chamber for leak rate assessment and material compatibility under vacuum conditions, adding that this was a key aspect for the programme.

The objective of the programme, which is proposed to be implemented in defined phases beginning 2017, is to undertake a human spaceflight mission to carry a crew of two to Low Earth Orbit (LEO) and return them safely to a predefined destination on earth. Currently, the pre-project activities are progressing with a focus on the development of critical technologies for subsystems such as Crew Module (CM), Environmental control and Life Support System (ECLSS), Crew Escape System, etc.

Sources also said that the mortar-based parachute ejection and deployment tests carried out in single and clustered configuration were a success and the environmental simulation chamber has been realised for testing of ECLSS functional modules and flight suit systems were satisfactory. Updating autopilot on re-suable vehicle . Further, considerable progress has been made in the area of the Re-usable Launch Vehicle Technology Demonstrator (RLV-TD), critical for such a programme.

The RLV-TD has been configured to act as a flying test bed to evaluate various technologies, namely, hypersonic flight, autonomous landing, powered cruise flight and hypersonic flight using air breathing propulsion towards realising a Two-Stage-to-Orbit (TSTO) fully re-usable launch vehicle.

Developments in this regard include updating of autopilot design in RLV-TD ascent phase and technology demonstration vehicle (TDV) descent phase.

The validation and navigation and guidance control (NGC) design, liftoff studies et al have been realised through 6D simulations.

“Guidance and Autopilot designs were modified based on simulation results,” a source said.
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Re: Indian Space Program Discussion

Post by Vipul »

ISRO's hands are full this year.

The Indian Space Research Organisation (ISRO) is all set for a busy year in 2013 as it will carry out several important missions including the Mars Orbiter and the Reusable Launch Vehicle Technology Demonstrator (RLV TD).

According to ISRO’s annual report, hectic efforts are on to prepare the Mars Orbiter Mission for launch in October 2013 where it will spend one month in earth orbit before its 10 month deep space cruise to reach Mars in September 2014. The 1,350 kg spacecraft will carry five instruments to study the atmosphere, mineral composition and to take detailed photographs of Mars.

Planning for deep space communication at a distance of nearly 400 million km will be one among the many challenges the mission will face after it is launched from Sri Harikota in October. The satellite will carry science experiments with a total mass of 15 kg which will include a Lyman Alpha Photometer, Methan Sensor and the Mars Colour Camera for optical imaging.

“Preliminary design reviews of all the spacecraft systems and payloads have been completed. The structure has been delivered to clean room and the propulsion system integration is in the final stage. All payloads are in the advanced stage of development and expected to be delivered for Integration by March/April 2013. The ground segment elements at Indian Deep Space Network (IDSN) at Byalalu and S-band sea-borne terminals are getting geared up for the mission,” the report said.
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Re: Indian Space Program Discussion

Post by member_23694 »

check this image and identify :
https://fbcdn-sphotos-f-a.akamaihd.net/ ... 5948_n.jpg

this really looks great 8)
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Re: Indian Space Program Discussion

Post by Suraj »

Those ISRO FB pics are KLPD material. I thought the Mk3 pics were the real thing, not a mockup.
member_23694
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Re: Indian Space Program Discussion

Post by member_23694 »

^^^^^^^^
ohh ... u mean not a real ISRO centre.... dukhi kar diye
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Re: Indian Space Program Discussion

Post by Bade »

That is an extremely stable structure to be inside during a cyclone. SHAR is definitely in the zone for such storms.
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Re: Indian Space Program Discussion

Post by member_24808 »

isro outcome budget for 2013 is out: http://www.isro.org/pdf/Outcome%20budget2013-14.pdf

Interesting updates:

GSLV MK-3 test flight - Scheduled during April 2014 and will carry a prototype model of ISRO crew capsule, crew capsule will weigh 2500kg

Third static test of S200 motor - ISRO is preparing to fire the S200 motor for a third time,this will most likely happen in the second half of the year

CE-20 Hot test- Hot test of CE-20 engine for GSLV MK-3 upper stage is planned at high altitude vacuum facility sometime this year

Pad abort test - Testing of crew escape system for human spaceflight program is scheduled before the end of the year

Space suit engineering model test - isro's space suit will undergo qualification tests this year in simulated space environment

Initiation of preliminary work on CE-60 engine for future heavy lift vehicles: Work on a new cyro engine with 600KN thrust will be started, it will power the upper stage of the TSTO, avatar space shuttle and the ULV family of rockets
Last edited by member_24808 on 07 Apr 2013 12:34, edited 1 time in total.
sanjaykumar
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Re: Indian Space Program Discussion

Post by sanjaykumar »

Very impressive work going on but even more impressive ambition.

I am worried that ISRO will encourage Pakistani terrorism against India and the rest of the world.
Their envy and jealousy was on full display in Salman Taseer the unmasli's tweet:50+ abusive tweets from India because I advised them 2 stick 2 gana bajana & stop blowing/ misfiring rockets & polluting space

Of course Pakistanis would do better not commenting on things they don't understand and confining themselves to establishing sharia.
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Re: Indian Space Program Discussion

Post by member_24808 »

More updates from ISRO's outcome budget:

Second vehicle assembly building for second launch pad: The construction of Second VAB for Second launch pad has started. When completed it will reduce the launch turnaround from 3 months to 2 months for the Second launch pad. This will increase the maximum launches from SLP from 4 rockets to 6 rockets per year. It is scheduled to be completed by 2016.

Third launch Pad: Third launch pad with two VAB's is in preliminary stage. Configuration has been finalised and the launch pad will be equipped with facilities for human spaceflight and future ULV rocket. Estimated project cost is 1000 crores.

Small satellites for docking and rendezvous - ISRO plans a series of small satellites built on the IMS-1 bus(100kg class satellite) to use to validate docking technology.
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Re: Indian Space Program Discussion

Post by venku_Raj »

ISRO planning first privately built PSLV launch in 5 years
Moving forward on its plans to rope in the industry in its activities, ISRO is looking towards the launch of the first privately built rocket in the next five years.

The Indian Space Research Organisation has embarked on hiving off production of communication satellites and polar satellite launch vehicles (PSLVs) to the industry.

“We are now setting up a national committee to work out the modalities on how to go about it,” ISRO Chairman K Radhakrishnan told PTI when asked about the agency’s plans to rope in the industry for producing PSLVs and communication satellites.

He said the space agency had told the industry representatives at a meeting in Ahmedabad in January that it was looking at PSLVs and communication satellites produced by them.

“My target is five years from now on. Five years from now the first PSLV will roll out from that entity,” Radhakrishnan said.

He said the proposed national committee would look at various steps in this regard including the revenue model, technology transfer and related matters.

The space agency is keen to focus on unique science projects, develop remote sensing satellites and do more research and development instead of engaging in the repititive exercise of building communication satellites and launch vehicles.

The industry participation in development of communication satellites is upto 80 per cent. If satellites and launch vehicles can be produced by industry players, ISRO scientists will be able to concentrate on research-oriented activities, and have greater involvement of academic institutions.
LINK
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Re: Indian Space Program Discussion

Post by nash »

I doubt in 5 years PSLV can be built entirely by single private company. It would be venture of couple of private companies, like Godrej,M&M,Tata,L&T, etc. May be they form a group dedicated to SLVs and satellite.
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Re: Indian Space Program Discussion

Post by karan_mc »

Isro recently admitted that at best, it can fabricate four PSLV rockets per year. L&T has shown interest to take over the complete programme management with technical support from ISRO. Isro also has plans of a dedicated 'Space Park' adjoining the spaceport at Sriharikota, which could be used by private players to develop the Indian aerospace industry.
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Re: Indian Space Program Discussion

Post by Bade »

When you procure from "outside" costs will definitely go up as is the experience from elsewhere. But this is the right step. ISRO should focus on R&D and not routine launches or making money out of space missions. This is not how NASA/NOAA/JAXA or even ESA works.
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Re: Indian Space Program Discussion

Post by Vipul »

ISRO to flight-test heavier GSLV-MK III rocket next year.

The Indian Space Research Organisation (ISRO) will flight-test the Geosynchronous Satellite Launch Vehicle-Mark III (GSLV-Mk III), its heaviest rocket so far, on an experimental flight next year.

The first of the heavy-duty rockets is expected to take to the sky next January on an experimental flight whose later versions could be used to send humans on space missions, ISRO said.

The Geosynchronous Satellite Launch Vehicle-Mark III (GSLV-Mk III), a launch vehicle currently under development by the ISRO, would be used to put in orbit heavier communication satellites weighing up to five tones and pack more transponders.It would also enhance the capability of the country to be a competitive player in the multimillion dollar commercial launch market. The vehicle envisages multi-mission launch capability for GTO, LEO, Polar and intermediate circular orbits, ISRO said in a web site release.

GSLV-Mk III is designed to be a three-stage vehicle, with a height of 42.4 metres and a lift off weight of 630 tonnes.The first stage comprises two identical S200 large solid booster that uses 200 tonne solid propellant that are strapped on to the second stage, the L110 re-startable liquid stage. The third stage is the C25 LOX/LH2 cryo stage. The large payload fairing measures 5 m in diameter and can accommodate a payload volume of 100 cu m.
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Re: Indian Space Program Discussion

Post by Pratyush »

^^^

It will a great day when the first privately built PSLV places payload in orbit. On that day I will truly say yawn, just another successful launch.

Will the GSLV MkIII use an Indian cryo stage?
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Re: Indian Space Program Discussion

Post by Singha »

I must admit was skeptical of the pvt outfits like spaceX building rockets to reach the ISS when NASA decided to outsource such activity. they still have LM and Boeing for the big rockets like titan and delta.
but it seems to be working out.

we are at stage where our own LM and Boeings come fwd to fabricate based on ISRO design.
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Re: Indian Space Program Discussion

Post by disha »

SpaceX got massive funds and Tech transfer for it to be successful. We still have ways to go, space is a high risk initiative and currently we do not have a cultural capacity to take very high risks where failures are constant and successes are few and far between. For example look no further than our Dumb/dork journos. And for another example, how much "death" are we willing to take? The space shuttle itself killed an astronaut a year, still it was considered successful.
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Re: Indian Space Program Discussion

Post by Austin »

Do we have any statistics on how many IRS and INSAT types satellite do you currently have in orbit and How many do we plan to have by 2020 ?
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Re: Indian Space Program Discussion

Post by Shankar »

yes GSLV MK 3 will use fully indian cryo stage C 25 thatincludes engine turbo pumps propellant tanks etc. turbo pump testing is complete both liquid oxygen and liquid hydrogen . thrust chamber testing delayed a bit becasue of C12 FOR MARK 2 high altitude test and should be on wa after GSLV mk 2 launch
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Re: Indian Space Program Discussion

Post by Pratyush »

disha wrote:SpaceX got massive funds and Tech transfer for it to be successful. We still have ways to go, space is a high risk initiative and currently we do not have a cultural capacity to take very high risks where failures are constant and successes are few and far between. For example look no further than our Dumb/dork journos. And for another example, how much "death" are we willing to take? The space shuttle itself killed an astronaut a year, still it was considered successful.
A project such as the PSLV is relatively risk free today. As the development work is now over. It can be shifted to the pvt sector and should be done without any delay.

The GSLV OTOH, is still very high risk. IOt must be carefully proceeded with. Knowing that setbacks are bound to occur and will occur.

The DDM can go to hell, as they have no bearing on the Indian space program.
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