Суборбитальный пуск СА – GSLV Mk III LVM3 – Шрихарикота SLP - 18.12.2014, 03:30 UTC

[pkl]

Йог поместится.

[Salo]

http://www.thehindu.com/sci-tech/science/gslv-mark-iii-faces-its-first-experimental-flight/article6658873.ece

Updated: December 4, 2014 09:48 IST
GSLV Mark III faces its first experimental flight N. Gopal Raj
   

GSLV Mark III during a trial assembly using dummy stages carried out in 2012.  
 
 Later this month, the Geosynchronous Satellite Launch Vehicle (GSLV) Mark III is expected to lift off for the first time from India's spaceport at Sriharikota on an experimental flight that will assess the rocket's performance as it hurtles through the atmosphere to reach speeds many times that of sound.
 When operational, the GSLV Mark III will be the Indian Space Research Organisation's most powerful rocket, capable of putting four-tonne communication satellites into orbit, almost double the capacity of the current GSLV. The Mark III will weigh about 640 tonnes at launch, about 50 per cent heavier than the GSLV.
 Should India decide to send astronauts into space, this will be the rocket that carries them. So it is perhaps appropriate that the forthcoming launch will also provide an early test of a crew module that is being developed.
 During the 1990s, it became clear that a new launcher was needed to meet the country's requirements for communication satellites heavier than what the existing GSLV could carry, according to K. Kasturirangan, who was the ISRO chairman when the Rs. 2,498-crore project for developing the GSLV Mark III was approved by the Government in May 2002. Over four years of studies, simulations, debates on technical issues and several reviews went into finalising the Mark III's configuration, he said.
 Reducing the total number of propulsion modules that make up the GSLV Mark III was seen as crucial to increasing the rocket's reliability and reducing launch costs, according to ISRO experts this correspondent spoke to. The GSLV Mark III has just four propulsion modules while its predecessor, the GSLV, has seven.
 The GSLV Mark III has two huge solid propellants boosters, which are among the largest in the world, flanking a big liquid propellant core stage. Atop the core stage, sits a cryogenic upper stage that will provide half the velocity needed to put communication satellites into the proper orbit.
 While the solid booster and the liquid propellant core stage completed ground tests and were qualified for flight about three years back, development of the cryogenic engine, running on liquid hydrogen and liquid oxygen, for the Mark III's upper stage is still in progress.
 For the experimental launch, the Mark III will be equipped with a dummy cryogenic engine and stage that will simulate the weight and other characteristics of the flight version. Consequently, the rocket will not be able to put the crew module it carries into orbit.
 The rocket will, however, give the crew module a velocity of 5.3. km/second when the latter separates at a height of about 125 km. The capsule will then descend and splashdown in the Bay of Bengal, about 600 km from Port Blair in the Andaman Islands.
 The GSLV Mark III is "a totally new configuration," observed K. Radhakrishnan, the current ISRO chairman, explaining the rationale for the experimental mission. "So if there are issues with respect to the configuration and we need to take care of that, it is better to take care of [them] early." It was not necessary to wait till the cryogenic stage was qualified.
 The GSLV Mark III is more sensitive than the Polar Satellite Launch Vehicle (PSLV) and the current GSLV to disturbances that might occur as it accelerates through the dense atmosphere, noted S. Ramakrishnan, who was the first project director for its development and retired earlier this year as director of the Vikram Sarabhai Space Centre (VSSC) in Thiruvananthapuram. The ability of the rocket's control systems to effectively handle such perturbations without violating the vehicle's structural capabilities will be tested during the experimental flight.
 Building on experience with the big solid propellant first stage of the PSLV and GSLV, which carries 139 tonnes of propellant, the Mark III's two giant 'S200' boosters each holds 207 tonnes of solid propellant. Only the solid boosters for America's Space Shuttle and Titan IV-B as well as Europe's Ariane 5 have more propellant than the S200. Of these, only the Ariane 5 is still operational.
 A separate facility has been established at Sriharikota to make the S200 boosters. The closely matched thrust levels required from the two boosters was achieved by carefully controlling both the quality of the raw materials used and their subsequent processing, said M.C. Dathan, who oversaw the development of the S200 and is currently director of VSSC.
 Another major achievement is that the S200's large nozzle has been equipped with a 'flex seal.' The nozzle can therefore be swivelled when the rocket's orientation needs correction.
 The GSLV Mark III's two S200 boosters fire at lift off, together generating a thrust of over 800 tonnes. The sheer volume of sound produced at lift off could potentially damage the rocket and the spacecraft. A sound suppression system has therefore been installed on the launch pad that will be spray about 20 tonnes of water per second to reduce noise levels during lift off.
 In flight, as the thrust from the S200 boosters begins to tail off, the decline in acceleration is sensed by the rocket's onboard sensors and the twin Vikas engines on the 'L110' liquid propellant core stage are then ignited.
 Before the S200s separate and fall away from the rocket, the solid boosters as well as the Vikas engines operate together for a short period of time. The thermal environment at the base of the L110 stage will be monitored during the experimental mission. The transition of control over the vehicle's orientation from the S200s to the L110 will also be closely watched.
 The L110 stage, with a diameter of four metres, carries 115 tonnes of liquid propellant. Although the Vikas engine has already flown on the PSLV and the GSLV, those on the Mark III have to operate for a longer duration.
 The first developmental flight of the GSLV Mark-III, with a functional cryogenic engine and stage, could take place in two years' time, according to Dr. Radhakrishnan.

[Salo]

http://www.microfinancemonitor.com/2014/12/02/isro-celebrates-mangal-mahotsav-gears-up-for-gslv-mark-iii-launch-in-dec-20-25/#

ISRO Gears Up for GSLV Mark III Launch Between Dec. 20-25

in Editor's Pick, SCIENCE December 2, 2014   

ISRO has celebrated "Mangal Mahotsav" on the occasion of its successful Mars Orbit Mission 'Maangalyaan' recently at its Bangalore headquarters and reiterated its resolve to send the next big mission — the launch of Geo-synchronous Satellite Launch Vehicle-Mark III (GSLV-Mk III) anytime between Dec. 20 and 25, dependin on weather conditions, said officials.

gslv mark_3M Pitchaimani, Deputy Director, ISRO Telemetry, Tracking and Command Network (ISTRAC) in Bangalore, said through the launch of GSLV-Mk III, Indian national space agency intends to send crew module or capsule into the deep space to study the ascent phase of the rocket as well as the recovery of a human capsule, after it re-enters the earth's atmosphere withstanding the heat and wind force.

China has successfully conducted the re-entry mission in October, setting its target on sending manned mission to Mars and other planets soon. The re-entry capability also enables development of a possible space shuttle by these two nations, in addition to NASA and Russian space agency.

GSLV Mk III is intended to carry heavy payloads, satellites of INSAT-4 class weighing 4500 to 5000 kg and also enhance the capability to take up the multimillion dollar commercial launch missions. The vehicle will also carry multi-mission launch capability for GTO, LEO, Polar and intermediate circular orbits.

GSLV-Mk III is a three stage vehicle, with 42.4 m tall with a lift off weight of 630 tonnes. Its first stage comprises two identical S200 Large Solid Booster (LSB) with 200 tonne solid propellant, that are strapped on to the second stage, the L110 re-startable liquid stage and the third stage is the C25 LOX/LH2 cryo stage. ISRO is banking on new advanced parachutes to manage the entire mission of recovery phase.

[triage]

Немного странный вопрос по картинкам на этой странице:
На "Картинки/фото разного срока давности с просторов интернета: " - защитный экран внизу при запуске, 
а потом пошли картинки защитный экран наверху.
Запуском помимо ракеты проверяют вхождение аппарата в атмосферу?

[Quoondо]

а СА у них ввыглядит по уродски.. кривой какой-то... почему то напоминает наши Востоки и Восходы

[Прол]

pkl пишет:
Йог поместится.

Однако, размер-то побольше, чем у спускаемого аппарата "Союз" .

[Alex_II]

Прол пишет:
Однако, размер-то побольше, чем у спускаемого аппарата "Союз"    .

Ну значит три йога поместится... В скафандрах...

[Salo]

Пуск 18 декабря с 06:30 до 10:30 ДМВ.

http://forum.nasaspaceflight.com/index.php?topic=15187.msg1299785#msg1299785

isro-watch пишет:
Expected Launch Date: 18-Dec-2014

input~2 пишет:
Seems to be confirmed by NOTAM announcing closure of airways East of Chennai (MMV VOR) from December 18, 0330UTC

A2212/14 - CLOSURE/ALTN ROUTINGS: I) P574 NOT AVBL BTN MMV VOR AND DUBTA ALTN RTE: MMV VOR-DCT-ADKIT-POINT Z 0854N08626E-DCT-DUBTA-P574 (BIDIRECTIONAL) II) P761 NOT AVBL BTN MMV VOR AND IDASO ALTN RTE: MMV VOR - TR319/139DEG-53NM-TTP VOR-DCT- POINT A 142225N0800303E-DCT- GURAS-DCT-IDASO(BIDIRECTIONAL) III) P762 NOT AVBL BTN BIKEN AND DUGOS ALTN RTE: BIKEN-DCT-POINT Z 0854N08626E-DCT -DUGOS-P762 (BIRECTIONAL) IV) W20 NOT AVBL BTN MMV VOR AND BODEL ALTN RTE: MMV VOR- TR319/139DEG-53NM-TTP VOR- TR357/177DEG-81NM- BODEL (BIDIRECTIONAL) V) A465 NOT AVBL BTN MMV VOR AND DOKET ALTN RTE: MMV VOR-TR319/139DEG-53NM-TTP VOR- DCT- POINT A 142225N0800303E-DCT-DOKET (BIDIRECTIONAL) VI) ATS RTE N563,B466,Q10,Q11,V003,V004,V006,V008,V009 AND V011 NOT AVBL. GND - UNL) END PART 1 OF 2, 0330-0730, 18 DEC 03:30 2014 UNTIL 31 DEC 07:30 2014. CREATED: 03 DEC 16:49 2014

[Salo]

http://www.isro.org/gslv-mkiii-x/Imagegallery/launchvehicle.aspx

The two S200 Strap-ons during the integration of the vehicle
 

L110 Liquid Core Stage being prepared at Stage Preparation Facility
 

The partially integrated vehicle with S200 Strap-ons and L110 Core Stage outside the Vehicle Assembly Building
 

The passive C25 Cryogenic Upper Stage being hoisted at Vehicle Assembly Building
 

Integration of the passive C25 Cryogenic Upper Stage with L110 liquid Core Stage in Progress at Vehicle Assembly Building
 

CARE at clean room before its launch
 
      
GSLV Mk-III mock-up at Second Launch Pad

[VK]

Alex_II пишет:

Прол пишет:
Однако, размер-то побольше, чем у спускаемого аппарата "Союз"    .

Ну значит три йога поместится... В скафандрах...

Зачем йогам скафандры?    

[Alex_II]

VK пишет:
Зачем йогам скафандры?  

Чтоб при разгерметизации не забрызгать внутренности СА - технику беречь надо...

[pkl]

Ерунда, йоги могут самомумифицироваться. Так что лучше четыре голых йога - будет рекорд, который ещё долго никто не побьёт!  :oops:


Однако же, месяц ух, какой захватывающий получается!

[Виктор Левашов]

судя по картинкам, на мой дилетантский взгляд, индийцы идут более по американскому пути, нежели по нашему, как китайцы.

[Salo]

Updated: December 10, 2014 23:25 IST

Unmanned crew module to be tested
N. GOPAL RAJ

 THE AIM: The flight will test the module's re-entry characteristics.  
 
Thirty years after Rakesh Sharma became the first Indian to venture into space, flying aboard a Soviet Soyuz spacecraft, an Indian crew capsule and rocket that could one day carry astronauts will get their first trial next week.
The experimental flight of the Geosynchronous Satellite Launch Vehicle (GSLV) Mark III, scheduled for next Thursday (Dec. 18), will send the unmanned crew module on a suborbital trajectory, with the latter splashing down in the Bay of Bengal about 21 minutes after the rocket lifts off from Sriharikota.
This flight would test the crew module's re-entry characteristics, said K. Radhakrishnan, chairman of the Indian Space Research Organisation (ISRO). Recovery of the spacecraft from the ocean, carried out with the help of the Indian Coast Guard, would also be "an involved task." Back in January 2007, ISRO had orbited a small 550-kg spacecraft, the Space Capsule Recovery Experiment (SRE-1), that carried out remote-controlled experiments in the microgravity conditions of space. After 12 days in orbit, the spacecraft was successfully brought back, landing in the Bay of Bengal with remarkable precision. This provided experience with re-entry, a prerequisite for manned spaceflight.
A project report prepared by ISRO envisaged carrying out a manned mission in about seven years at a cost of around Rs. 12,400 crore. Thus far, the Government has not cleared such a project.
However, since 2007, the Government had given Rs. 145 crore for the development of critical technologies needed for a manned mission, according to Dr. Radhakrishnan.
The 3.7-tonne crew module being tested next week will be the same size, shape and weight as the capsule that is being developed to accommodate up to three astronauts. It will be equipped with the heat-protecting tiles and parachute system of the manned version.
While a capsule in orbit around Earth will re-enter with a velocity of over 28,000 km per hour, next week's test will see the GSLV Mark III leave the crew module at a height of about 125 km with a velocity of around 19,000 km per hour. The crew module carries sensors that will make measurements of over 200 parameters during the flight, including the temperature, pressure and stress experienced at various points in the structure. "This flight will give us tremendous confidence in our design and provide important inputs for proceeding with development of the manned capsule," observed S. Unnikrishnan Nair, project director for the Human Spaceflight Programme.
After separation from the GSLV Mark III, six liquid-propellant thrusters on the crew module will be used to correct any perturbations that occur during separation and bring the capsule down at the correct angle for re-entry into the atmosphere.
Once re-entry starts at a height of about 80 km, the thrusters will cease to operate. As the crew module streaks through the atmosphere, the air around it heats up and the spacecraft slows down. The heat shield at its base will be exposed to temperatures of around 1,000 degrees Celsius, according to Mr. Nair. (In re-entry from orbit, the temperature could touch 1,600 degrees Celsius.)
At a height of about 15 km, with the capsule travelling at 839 km per hour, the complex process of deploying the parachutes begins.
The crew module carries two independent sets of parachutes, both of which are simultaneously deployed. First, the 2.5-metre diameter pilot parachutes come out, followed by the 6.5-metre drogue parachutes, which cut the capsule's velocity down to 180 km per hour.
Then the main parachutes are deployed at a height of about 5 km. These parachutes, each 31 metres in diameter, are the largest ever made in the country and were developed by the Aerial Delivery Research & Development Establishment, an Agra-based national defence laboratory.
On splashdown, the main parachutes will be immediately detached from the crew module and a beacon giving its position activated. A fluorescent green dye will also be emitted to aid in locating the spacecraft.
In the coming test, the crew module could experience decelerations of up to 13 g, said Mr. Nair. But, in a mission with humans onboard, the capsule's thrusters would continue to operate till parachute deployment began, adjusting the spacecraft's orientation and trajectory, and keeping deceleration levels to less than 4 g. (One g being equivalent to the tug of Earth's gravity.)

[che wi]

ISRO ‏@isro  1 hour ago

GSLV Mk-III rolls out to the launch pad for its Experimental Flight, slated later in this month.

[che wi]

[pkl]

Виктор Левашов пишет:
судя по картинкам, на мой дилетантский взгляд, индийцы идут более по американскому пути, нежели по нашему, как китайцы.

Угу, индийский Титан-4. Только какой-то "толстенький".

[horsh]

Обормот на бегемоте.

[Alex_II]

pkl пишет:
Ерунда, йоги могут самомумифицироваться. Так что лучше четыре голых йога - будет рекорд, который ещё долго никто не побьёт!

Откуда рекорд? Шатл возил семерых - вот этот рекорд долго не побьют... А если четверых впихнут - так в следующий раз Боинг или Маск шестерых выведут - и алга рекорду...

[pkl]

Рекорд - число йогов в одном запуске. Я жу шутил!