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

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=30160.msg1085893#msg1085893

Galactic Penguin SST пишет:
Apparently launch will be delayed >1 week as the rocket will be rolled back and de-stacked.

[che wi]

Launch of GSLV D5 carrying GSAT 14 has been cancelled. We observed a leak in the fuel system of the second stage of the vehicle, revised launch date of GSLV D5 will be announced later.

Dr. K. Radhakrishnan
Chairman of the Space Commission and ISRO

[Salo]

azeast пишет:
Lift off!

azeast пишет:
300 сек полёта

Какую траву Вы курите?

[azeast]

Salo пишет:
Какую траву Вы курите?

Пардон, по этой ссылке зашёл, а вроде прямой репортаж http://www.isro.org/scripts/livewebcast.aspx
Прошу прощения, это год назад было.

[Space Alien]

azeast пишет:

Salo пишет:
Какую траву Вы курите?

Пардон, по этой ссылке зашёл, а вроде прямой репортаж http://www.isro.org/scripts/livewebcast.aspx

Это вообще PSLV-C21 от 09.09.2012      .

[Lanista]

azeast пишет:

Salo пишет:
Какую траву Вы курите?

Пардон, по этой ссылке зашёл, а вроде прямой репортаж http://www.isro.org/scripts/livewebcast.aspx

PSLV-C21 Launch from Satish Dhawan Space Center (SDSC), Shriharikota, India (09.09.2012)

[che wi]

Lanista пишет:
PSLV-C21 Launch from Satish Dhawan Space Center (SDSC), Shriharikota, India (09.09.2012)

Ну, лучше что-то, чем ничего :)

[che wi]

GSLV-D5 Launch Called-Off

The Launch of the GSLV-D5 scheduled for 1650 hrs today (August 19, 2013) is called off, as a leak is 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 are being drained from the Cryogenic Stage, Liquid Second Stage and the four liquid Strap-ons of GSLV-D5. The vehicle will be moved back to the Vehicle Assembly Building for further actions. 

The revised launch date will be announced after a detailed assessment.

http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Aug19_2013

[Space Alien]

Пуск ракеты-носителя GSLV-D5 с криогенным двигателем отменен в Индии

Запуск ракеты-носителя GSLV-D5 с криогенным двигателем собственной индийской разработки, который должен был стать этапным для космической программы этой страны, отменен после обнаружения утечки в корпусе ракеты, заявила Индийская организация космических исследований (ISRO).

"Пуск GSLV-D5/GSAT-14, назначенный на 19 августа 2013 года, отменен из-за обнаружения утечки во второй ступени ракеты", — говорится в официальном сообщении ISRO.

Пуск должен был состояться с космодрома Шрихарикота, расположенного на одноименном острове в Бенгальском заливе. О дате следующей попытки запуска не сообщается.

GSLV-D5 должна была вывести на орбиту коммуникационный спутник GSAT-14. В третьей ступени ракете массой 414 тонн и длиной 49 метров установлен двигатель, работающий на криогенном топливе. Индия уже провела шесть пусков ракет семейства GSLV с криогенными двигателями российского производства, первая попытка запустить ракету с собственным двигателем в 2010 году не удалась.

Эксперты отмечают, что успех собственного индийского криогенного двигателя имеет ключевое значение для национальной космической программы. GSLV с подобными двигателями могут доставлять грузы массой до пяти тонн, в том числе спутники и другие космические аппараты, в то время как использовавшиеся ранее ракеты семейства PSLV могут брать только до 1,5 тонны.
Криогенные двигатели создаются и успешно используются в космических программах США, России, Европы, Японии и КНР.


РИА Новости http://ria.ru/science/20130819/957243522.html

[LL_]

Обменять криогенные ракетные технологии на таблетки, чай и теплые кофты для женщин. Вааау!

[che wi]

ISRO will look at options of using a standby second stage engine for the early launch of GSLV D5 after examining what forced the postponement of the launch on Monday.

" We have a standby for the second stage engine. But first we have to study the problem. If the problem is due to a faulty component, then we have to look at the batch to which the component belonged and have to replace the entire components from that batch, there was no point in replacing an engine with another faulty one. If the problem is external, it will be easy to correct. But if it is internal, then the engine may have to be dismantled. "

GSLV D5 Mission Assurance Team

[Salo]

http://newindianexpress.com/states/kerala/GSLV-relaunch-will-take-several-months/2013/08/23/article1747479.ece

GSLV relaunch will take several months
 
  By Express News Service - THIRUVANANTHAPURAM
 Published: 23rd August 2013 10:15 AM
 
  It would be at least two months before the Geosynchronous Satellite Launch Vehicle D5 (GSLV D5) blasts off from Sriharikota despite a dismayed Indian Space Research Organisation (ISRO) working overtime to figure out what went wrong last Monday.
"Even if the defect is found to be a minor one, it would take at least two months. The stages (GSLV is a three-stage rocket) have to be dismantled for examination. If it's a major problem, it might take longer,'' an ISRO source said from Sriharikota.
Another factor that will have a say in deciding the new launch date is the forthcoming north-east monsoon. The August 19 launch had to be aborted less than two hours to lift-off after a fuel leak was detected in the second stage.

[Salo]

http://www.deccanherald.com/content/352946/gslv-d5-probe-begin-monday.html

GSLV-D5 probe to begin on Monday
Bangalore, Chethan Kumar, Aug 23, 2013, DHNS:

Scientists working on the Geosynchronous Satellite Launch Vehicle-D5 (GSLV-D5), the launch of which had to be postponed earlier this month after a leakage was spotted in the second stage, have said that there is no major glitch with the vehicle prima facie, but a clear picture would emerge only after Monday.

Sources at the Indian Space Research Organisation (Isro) said: "Primary checking has only detected the leak, and there seem to be no other problem."

Another source said that a thorough probe would be initiated on Monday, when the launch vehicle would be taken to the vehicle assembly building in Sriharikota.

"Right now, the spacecraft is sitting on top of the vehicle at the launch pad. All the propellants have been drained out and the vehicle has to be decontaminated for safety reasons. After this, it would be moved back to the vehicle assembly building," he said.
Stating that the spacecraft would be separated fr om the vehicle on Monday and shifted to the clean room, he said the inspection would then begin in the assembly building, wh ere scientists would have access to the various stages.

The launch vehicle has three stages: core stage plus strap-ons, the liquid stage and the cryogenic stage.

The leakage was detected in the second stage on August 19, when the vehicle was to put into space the GSAT-14.

While Isro can fix another date for the launch only after the inspection and correction, the failure of the GSLV continues to haunt the space agency.

[Старый]

Не понял: мы летим или не летим?

[Salo]

Пока мы только разбираем ракету, начиная с понедельника.  

[Старый]

Salo пишет:
Пока мы только разбираем ракету, начиная с понедельника.  

Ой! Что там у них стряслось?

[Salo]

Потекла вторая ступень. Кстати не в первый раз. На PSLV такое тоже было.

[Старый]

Двоечники...

[che wi]

ISRO to assemble another engine for aborted GSLV
http://news.indiaonline.in/ISRO-to-assemble-another-engine-for-aborted-GSLV-59233

The Indian space agency will assemble another engine to fly its heavy rocket geosynchronous satellite launch vehicle (GSLV), while packing off the leaking one to its Liquid Propulsion Systems Centre (LPSC) for detailed study, an official said Tuesday.

The Indian Space Research Organisation (ISRO) had called off the launch of its GSLV rocket carrying the communication satellite GSAT-14 Aug 19 after the liquid fuel started leaking like a tap from the rocket's second stage.

ISRO's spaceport is located at Sriharikota in Andhra Pradesh, around 80 km from here. The LPSC is situated at Mahendragiri in Tamil Nadu.

The GSLV is a three-stage launch vehicle with four strap-on motors hugging the first stage.

The first stage is powered by solid fuel while the four strap-on motors and the second stage are powered by liquid fuel. The third is the cryogenic engine powered by liquid hydrogen and liquid oxygen.

"At the rocket assembly building, the satellite, cryogenic engine and the second stage have been destacked. It has been decided to shift the second stage to Mahendragiri for detailed inspection and study," the ISRO official told IANS.

He said ISRO has also decided to start assembling another engine so that the GSLV could fly at the earliest.

Queried about the time-frame for the GSLV's flight, he said: "It is not possible to give a time-frame for the GSLV's flight now."

In 2010, ISRO had to put off a PSLV launch as it found "a marginal drop in the pressure in the second stage of the vehicle during mandatory checks".

At that time, the faulty part was inaccessible as the rocket stages had been fully assembled. ISRO had to dismantle the second stage to correct the fault.

In June this year, ISRO put off the launch of its PSLV rocket carrying India's first navigational satellite after it found a problem in one of the electro-hydraulic control actuators in the second stage.

Here again, the fully-assembled rocket had to be dismantled to replace the actuator, an assembly of several components. The launch occurred successfully July 1.

However, ISRO officials told IANS that a pattern could be drawn only if the problem crops up consistently in a component/system.

-
Chennai | AUGUST 27, 2013

[Space Alien]

What stopped India's rocket launch? 750 kg of leaking fuel

When India's Rs. 205-crore space mission was aborted earlier this month, scientists from the Indian Space Research Organisation (ISRO) blamed a fuel leak in the rocket that was meant to place a communications satellite in space.

NDTV has now learnt that scientists discovered that 750 kilograms of highly inflammable and explosive fuel had leaked from the engine.

The countdown clock was stopped barely 74 minutes before the scheduled lift-off for the Geosynchronous Satellite Launch Vehicle (GSLV) fitted with a cryogenic engine made in India.

Video showed the rocket being splashed with water. Weighing as much as 80 well-fed adult elephants, the vehicle was dismantled at Sriharikota, 80 kilometres from Chennai.

Chairman of ISRO, K Radhakrishnan, said "timely detection and quick action" averted what could have been a massive fire that could have engulfed not just the rocket but the second launch pad facility at Sriharikota. This is the first time ISRO has had to dismantle a rocket that had been almost fully fuelled.

"There is no generic problem with the rocket," Mr Radhakrishnan told NDTV. The launch will be attempted again in December.

India has been trying to push further into the global market for launching commercial satellites.

http://www.ndtv.com/article/india/what-stopped-india-s-rocket-launch-750-kg-of-leaking-fuel-411152?pfrom=home-lateststories