GSAT-14 - GSLV-D5 (Mk.II) - 05.01.2014 - Шрихарикота SLP

Автор Salo, 17.04.2012 15:00:11

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Salo

http://www.thehindu.com/sci-tech/science/gslv-flight-with-indigenous-cryogenic-engine-only-in-dec-isro/article5068115.ece
ЦитироватьBangalore, August 28, 2013
Updated: August 28, 2013 18:24 IST
GSLV flight with indigenous cryogenic engine only in Dec: ISRO
PTI

The flight-test of GSLV with indigenous cryogenic engine, called off ten days ago following a leak in the second stage of the rocket, is now expected to take place only in December, Indian Space Research Organisation said on Wednesday.

ISRO has started the process of de-stacking the rocket and the second stage would be shifted to Liquid Propulsion Systems Centre (LPSC), a facility of the space agency located at Mahendragiri in Tamil Nadu, for an investigation into the cause of the leakage.

The launch of the GSLV-D5, scheduled for 1650 hrs on August 19 fr om the Sriharikota spaceport was called off, as a leak was observed in the UH25 fuel system of the liquid second stage during the pre-launch pressurisation phase on the vehicle just two hours before the scheduled lift-off.

The propellants were later drained from the cryogenic stage, liquid second stage and the four liquid Strap-ons of GSLV-D5. The rocket was moved back to the vehicle assembly building.

An ISRO official told PTI in Bangalore on Wednesday that the first and third stage of GSLV would be "preserved" while the second stage would have be built again, a process which has already started.

ISRO would be busy with the Mars Orbiter mission in the next two months. "We can expect the GSLV flight in December", the official said.

ISRO has drawn flak from some quarters for using an "old tank" for the second stage as the materials used for building it were "prone for delayed cracks". It was said have been delivered to ISRO four-years ago and was to be the last in the series of the kind that ISRO planned to use.

A senior space scientist called it a "gross error of judgement" on the part of ISRO which obviously seemed to focus more on the third (cryogenic) stage, as the first two were a "given" as it's similar to the proven PSLV, the workhorse launcher.


GSLV is a three stage vehicle that is 49 metre tall, with 414 tonne lift-off weight. First stage comprises S125 solid booster with four liquid (L40) strap-ons. Second stage (GS2) is liquid engine and the third stage (GS3) is a cryostage.

The final/third stage of GSLV is the cryogenic stage, which is more efficient compared to the liquid stage in PSLV.

This means that the thrust developed by burning each kg of propellant is higher in cryo engine, hence can place larger payloads with higher weight into orbit.

"Cryo stage as final stage is hence essential for a launcher with higher payload capacity", an ISRO official said.

PSLV is capable of launching 1600 kg satellites in 620 km sun-synchronous polar orbit and 1050 kg satellite in geo-synchronous transfer orbit (GTO).

"This poses a serious lim itation on launching communication satellites which are heavier. The GSLV will be capable of launching satellites which are 2000 kg-2500kg which matches with the GSAT class of Communication satellites", it was noted.

Currently, India is forced to outsource the launch services from abroad which are not a cost effective solution. The establishment of a proven GSLV launcher is the need of the hour. The successful development of indigenous cryo stage will boost India's confidence in terms of its self-reliance in the launch capability, ISRO officials said.
"Были когда-то и мы рысаками!!!"

Salo

http://www.deccanherald.com/content/356989/isro-make-stage-gslv.html
ЦитироватьIsro to make new stage for GSLV
Bangalore, Sep 13, 2013, DHNS:

The high-level task team constituted to probe the August 19 failure of the Geosynchronous Satellite Launch Vehicle-D5 (GSLV-D5) is yet to submit the final report on the reasons for the glitch, but the Indian Space Research Organisation (Isro) has decided to assemble a new second stage for the rocket.

A senior Isro official, while stating that the exact date for the launch of GSLV-D5 can only be set in November, added that the launcher would be launched into space in December, carrying the GSAT-14.

"Going by the availability of hardware and components, the GSLV assembly and checkout is expected to be completed at the vehicle assembly building by the first week of December," said a note issued by Isro.

"Although the exact reasons for the leakage in the second stage of the engine, which prevented the launch on August 19, are being probed by the team headed by K Narayanan, it has been decided that a new liquid second stage (GS-2) will be assembled to replace the leaked stage," said the official.

He added that the process of assembling has begun, and that besides the GS-2, all the four liquid strap-on stages are being replaced with new ones.

Another official, while stating that the team is also inspecting the first stage (solid) and core base shroud, added that if any of the elements are found to be affected, "we will replace even those".

"The satellite assembly, avionics equipment bay and the cryogenic stage will be preserved, following prescribed practices," said an official note issued by Isro.
"Были когда-то и мы рысаками!!!"

Salo

ЦитироватьGSLV- D5 to be launched in December: Isro head

TNN Sep 28, 2013, 02.42AM IST

KOZHIKODE: The launch of the GSLV- D5, which was aborted the last minute following a fuel leak in the second stage of the rocket last month, will take place on December 15, Indian Space Research Organisation (Isro) chairman, K Radhakrishnan said here on Friday.
 The launch of GSLV-D5, featuring an indigenous cryogenic engine, had to be called off during the last lap of the countdown due to a leak detected in the fuel system of the rocket's liquid second stage on August 19.
http://www.indianexpress.com/news/gslv-d5-ready-for-launch-on-december-15-isro-chairman/1175296/
ЦитироватьGSLV D5 ready for launch on December 15: ISRO Chairman
PTI : Kozhikode(Kerala), Fri Sep 27 2013, 22:01 hrs

The launch of Geosynchronous Satellite Launch Vehicle (GSLV), which was deferred on August 19 following a flaw in the rocket, will take place on December 15, Indian Space Research Organisation chariman Dr K Radhakrishnan said on Friday.

"The launch of GSLV D5 satellite which was postponed on August 19 about two hours before liftoff after detection of a fuel leak in the rockets' second stage will now be held on December 15," ISRO chairman Dr K Radhakrishnan said at an interactive session with students and teachers at Kozhikode.

GSLV is a three-stage engine rocket. The first stage is fired with solid fuel, the second is the liquid fuel and the third stage is the cryogenic engine. Geosynchronous satellites are placed in orbits 36,000 km above the earth.
"Были когда-то и мы рысаками!!!"

Salo

http://newindianexpress.com/cities/bangalore/Preparations-in-full-swing-for-December-15-GSLV-mission/2013/11/05/article1873867.ece
ЦитироватьPreparations in full swing for December 15 GSLV mission
  By PTI - BANGALORE
 Published: 05th November 2013 04:49 PM
 Last Updated: 05th November 2013 04:49 PM
 
  Even as ISRO successfully launched the Mars Orbiter Mission (MOM), preparations are in full swing for flight-testing of GSLV with indigenous cryogenic engine, a key step to boost the country's confidence in terms of its self-reliance in launch capability, on December 15.

"We have put all our efforts for the development of GSLV", ISRO Chairman K Radhakrishnan said. "The assembly of GSLV is going on at Sriharikota. It started on October 18. Now, the launch is scheduled for December 15th".

The maiden flight testing of the indigenous cryogenic engine and stage conducted in GSLV-D3 on April 15, 2010, failed.

ISRO made another attempt on August 19 this year but the the launch was called off as a leak was observed in the UH25 fuel system of the liquid second stage during the pre-launch pressurisation phase on the vehicle just two hours before the scheduled lift-off.

GSLV is a three stage vehicle. GSLV is 49 metre tall, with 414 tonne lift off weight. First stage comprises S125 solid booster with four liquid (L40) strap-ons. Second stage (GS2) is liquid engine and the third stage (GS3) is a cryostage.

The cryostage is more efficient compared to the liquid stage in PSLV. This means that the thrust developed by burning each kg of propellant is higher in cryo engine, hence can place larger payloads with higher weight into orbit. "Cryo stage as final stage is hence essential for a launcher with higher payload capacity", an ISRO official said.

PSLV is capable of launching 1600 kg satellites in 620 km sun-synchronous polar orbit and 1050 kg satellite in geo-synchronous transfer orbit (GTO).

"This poses a serious limitation on launching communication satellites which are heavier. The GSLV will be capable of launching satellites which are 2000 kg - 2500 kg which matches with the GSAT class of Communication satellites", it was noted.

Currently, India is forced to outsource the heavy launch services from abroad which is not a cost effective solution The establishment of a proven GSLV launcher is the need of the hour. The successful development of indigenous cryostage will boost India?s confidence in terms of its self reliance in the launch capability, ISRO officials said.
"Были когда-то и мы рысаками!!!"

Salo

http://www.indianexpress.com/news/mars-mission-launched-isro-now-gears-up-for-dec-15-gslv-test-flight/1191155/
ЦитироватьMars mission launched, ISRO now gears up for Dec 15 GSLV test flight
 PTI : Bangalore, Tue Nov 05 2013, 19:43 hrs

Even as ISRO successfully launched the Mars Orbiter Mission (MOM), preparations are in full swing for flight-testing of GSLV with indigenous cryogenic engine, a key step to boost the country's confidence in terms of its self-reliance in launch capability, on December 15.

"We have put all our efforts for the development of GSLV", ISRO Chairman K Radhakrishnan said. "The assembly of GSLV is going on at Sriharikota. It started on October 18. Now, the launch is scheduled for December 15th".

The maiden flight testing of the indigenous cryogenic engine and stage conducted in GSLV-D3 on April 15, 2010, failed.

ISRO made another attempt on August 19 this year but the the launch was called off as a leak was observed in the UH25 fuel system of the liquid second stage during the pre-launch pressurisation phase on the vehicle just two hours before the scheduled lift-off.

GSLV is a three stage vehicle. GSLV is 49 metre tall, with 414 tonne lift off weight. First stage comprises S125 solid booster with four liquid (L40) strap-ons. Second stage (GS2) is liquid engine and the third stage (GS3) is a cryostage.

The cryostage is more efficient compared to the liquid stage in PSLV. This means that the thrust developed by burning each kg of propellant is higher in cryo engine, hence can place larger payloads with higher weight into orbit. "Cryostage as final stage is hence essential for a launcher with higher payload capacity", an ISRO official said.

PSLV is capable of launching 1600 kg satellites in 620 km sun-synchronous polar orbit and 1050 kg satellite in geo-synchronous transfer orbit (GTO).

"This poses a serious limitation on launching communication satellites which are heavier. The GSLV will be capable of launching satellites which are 2000 kg-2500 kg which matches with the GSAT class of Communication satellites", it was noted.
"Были когда-то и мы рысаками!!!"


Salo

http://articles.economictimes.indiatimes.com/2013-12-03/news/44710670_1_gslv-d5-launch-launch-pad-cryogenic-stage
ЦитироватьISRO's GSLV D5 launch likely early next month
PTI Dec 3, 2013, 11.59AM IST

CHENNAI: ISRO today announced that the launch of Geosynchronous Satellite Launch Vehicle GSLV D5, which was called off at the 11th hour on August 19 due to a fuel leak in its second stage, is likely in the first week of January next year.

"After carrying out all preparatory works, the launch of GSLV D5 is likely by the first week of January next year. The exact date and time is yet to be fixed," ISRO sources told PTI.

The integration of the second stage of GSLV D5 has already been completed and integration of the cryogenic stage is planned on December 9, they said.

"After completing all other procedures, the vehicle is scheduled to be brought to the launch pad on December 28. We need at least a week for the launch after the vehicle in brought to the pad," they added.

The launch of GSLV-D5 scheduled at 1650 hours on Aug 19 was called off at Satish Dhawan Space Centre at Sriharikota, some 100 km from here, after a leak was detected in the fuel system of the liquid second stage in pre-launch pressurisation phase on the vehicle, just two hours before lift-off.

The propellants were later drained from the cryogenic stage, liquid second stage and the four liquid strap-ons of GSLV-D5 and the vehicle was moved back to the Vehicle Assembly Building in SDSC.
"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

Space Alien

ЦитироватьGSLV-D5 is all set to soar the skies off Sriharikota space-port. The launch is targeted on 1618 hrs of January 5, 2014...

https://www.facebook.com/photo.php?fbid=1448404758716215&set=a.1448404935382864.1073741828.1448364408720250&type=1

Salo

"Были когда-то и мы рысаками!!!"

Salo

#91
http://www.isro.org/gslv-d5/Imagegallery/launchvehicle.aspx
Цитировать
Nozzle End Segment of GSLV-D5 First Stage being placed on the Mobile Launch Pedestal



One of the segments of GSLV-D5 First Stage being hosited during Vehicle Integration



Two Segments of the GSLV-D5 First Stage are being joined together at the Vehicle Assembly Building





One of the Strap-on Motors of GSLV-D5 being integrated with the GSLV-D5 Core Stage


GSLV-D5 Core Stage with four Strap-Ons at the Vehicle Assembly Building


Hoisting of GSLV-D5 Second Stage during Vehicle Assembly


Indigenous Cryogenic Upper Stage being lifted from its transporter at the Vehicle Assembly Building


Indigenous Cryogenic Upper Stage is being integrated with GSLV-D5 Second Stage
"Были когда-то и мы рысаками!!!"

Salo

"Были когда-то и мы рысаками!!!"

che wi

Pre-Launch Updates

Dec 28, 2013

    [/li]
  • The Mission Readiness Review (MRR) team and the Launch Authorisation Board (LAB) have cleared the GSLV-D5/GSAT 14 launch at 16:18 hrs (IST) on Jan 05, 2014
  • The vehicle is moved from the vehicle assembly building to the umbilical tower (the launch pad) in the morning of Dec 28, 2013
  • A 29-hour countdown is set to commence on Jan 04, 2014 at around 11 hrs (IST)
http://www.isro.org/gslv-d5/d5-updates.aspx

Salo

http://www.thehindu.com/news/national/will-2014-place-isro-in-cryo-club/article5527391.ece
ЦитироватьWill 2014 place ISRO in cryo club?
Madhumathi D. S.
 
 Will 2014 see a 20-year-old Indian space dream come true? January 5 should tell whether years of ISRO's toil and tears will fructify and usher India into a sel ect club of countries — those with their own cryogenic rocket engine technology, which can launch their communication satellites from their soil.
Space agency ISRO, flush fr om launching its Mars Orbiter Mission, will face its acid test on Sunday when it flies the GSLV-D5 launch vehicle with the indigenously built cryogenic upper third stage. To succeed, the launcher must place GSAT-14, a two-tonne-class satellite, in the planned orbit.
ISRO Chairman K. Radhakrishnan told The Hindu that the GSLV flight with an indigenous cryogenic stage would be a priority mission for 2014.
The upcoming launch is said to be extremely vital for the organisation morally and operationally. The first such bid failed in April 2010. A second attempt was called off in August 2013, an hour before the launch, after a fuel leak was detected. In the last four or so months, the organisation had done everything to ready a "refurbished" vehicle, Dr. Radhakrishnan said. Significant changes were made, including new fuel tanks, systems and material, based on the recommendations of the K. Narayana committee that went into the August leak episode.
The teams started re-assembling the current vehicle on October 18, 2013. The three-stage GSLV rocket has a first stage (S139) propelled by solid fuel; its four strap-on (L40) boosters use liquid fuel. The second stage GS2 uses liquid propellants. The third cryo stage uses liquid hydrogen and liquid oxygen. While D5's cryo stage was found healthy after August, ISRO had to work anew on the other two.
Dr. Radhakrishnan said: "We got a new S139 solid first stage. Its four liquid strap-on stages have a lot of avionics, so we refurbished them at Mahendragiri and Hindustan Aeronautics Ltd. We also made a new second stage. When the launch was called off in August, the liquid stage had to be drained of fuel and washed with much water. This might have affected the electronics systems, so we replaced them, too."
More importantly, the fuel tank material has been changed, fully phasing out the traditional but corrosion-prone aluminium-zinc combine, called AFNOR 7020. The new alternative, aluminium-copper alloy called AA2219, is now the material for all PSLV and GSLV tanks.
"Были когда-то и мы рысаками!!!"

Salo

http://www.isro.org/gslv-d5/Imagegallery/launchvehicle.aspx
Цитировать
Fully integrated GSLV-D5 in the Vehicle Assembly Building


GSLV-D5 being moved from Vehicle Assembly Building to Launch Pad


GSLV-D5 moving towards Launch Pad


GSLV-D5 at the Second Launch Pad (Umbilical Tower)
"Были когда-то и мы рысаками!!!"

che wi

Pre-Launch Updates

Jan 04, 2014
    [/li]
  • Propellant filling operation of GLSV-D5 Strap Ons is under progress
  • Preparations for Propellant filling operation of GLSV-D5 Strap Ons is under progress
  • GSLV-D5 Second Stage (GS2) Propellant filling operation is completed by 18:00hrs (IST)
  • GSLV-D5 Second Stage (GS2) Propellant filling operation is under progress
  • Preparations for GSLV-D5 Second Stage (GS2) Propellant filling operation commenced at 11:48 hrs (IST)
  • The 29 hour countdown started at 11:18 hrs (IST) and is in progress
http://isro.org/gslv-d5/d5-updates.aspx


возможные ссылки на трансляцию:
http://webcast.gov.in/live/
http://live.indiatimes.com/
http://www.livestream.com/spaceflightnow/

ronatu

ЦитироватьThe successful launch of India's heavier rocket - the geosynchronous satellite launch vehicle-D5 (GSLV-D5) - Sunday not only means the indigenous cryogenic engine is performing well but also would pave way for sizeable savings, the space agency's chief said Saturday.

"When GSLV-D5 succeeds in its mission Sunday, it means the Indian cryogenic stage/engine is performing well. It is a culmination of major indigenous technology development," Indian Space Research Organisation (ISRO) chairman K.Radhakrishnan told IANS.

In addition, the mission's success would not only pave way for ISRO to save launch costs paid to foreign space agencies but also to launch more communication satellites augmenting the transponder capacity to earn more revenue, he added.

Radhakrishnan said the country pays around $85-90 million or around Rs.500 crore as launch fee for sending up a 3.5 tonne communication satellites whereas the GSLV rocket costs around Rs.220 crore and the GSAT-14 that would go up Sunday evening costs around Rs.145 crore.

The ISRO can send smaller communication satellites - weighing around two tonnes - till such time it gets ready an advanced GSLV variant that can lug satellites weighing around four tonnes.

While that is for the future, Radhakrishnan said ISRO has lined up several satellite launches for the current GSLV rocket version.

"We will be launching satellites GSAT-6, 7A, 9 using GSLV. We will also be using this rocket for our second Chandrayaan mission and for the launch of GISAT," he said.

According to him, another communication satellite GSAT-15 will be launched using the Ariane rocket.

Other than the flight testing of cryogenic engine, 2014 will be an important year for ISRO.
Radhakrishnan noted that in September, the Mars Orbiter will be injected into the Mars orbit while the test flight of GSLV-Mark III version will also include a crew module for characterisation of re-entry from the space.

"The GSLV-Mark III experimental mission will be in April this year. The rocket will have a passive cryogenic stage/engine. The main purpose of the mission is to study the aerodynamics and stability of the rocket," he said.

He said the cryogenic engine for the next GSLV version will take around three years for being flight ready.

According to him, the next fiscal (April 2014-March 2015) would see ISRO launching three IRNSS (Indian Regional Navigational Satellite System) satellites taking the total to four and be ready for usage.

He said ISRO will also launch French satellite SPOT-7 along with four small satellites using its other rocket Polar Satellite Launch Vehicle (PSLV).

Radhakrishnan said ISRO plans to induct around 96 transponders (receivers and transmitters of signals),next fiscal. Currently it has 195 transponders.

Queried about the Mars Orbiter that was launched last year, he said the satellite health is good and it is around 8.5 million kilometer from earth.

"The next orbit maneuver (course correction) will be in April," he said.

http://www.business-standard.com/article/news-ians/gslv-rocket-s-success-will-mean-immense-savings-isro-chief-114010400550_1.html



Когда жизнь экзаменует - первыми сдают нервы.

ronatu

Когда жизнь экзаменует - первыми сдают нервы.

Salo

http://isro.org/gslv-d5/d5-updates.aspx
ЦитироватьJan 05, 2014

    Propellant filling operation of GSLV-D5 Strap Ons is completed
"Были когда-то и мы рысаками!!!"